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class="mw-page-title-main">Tesseract (software)</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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href="https://el.wikipedia.org/wiki/Tesseract_(%CE%BB%CE%BF%CE%B3%CE%B9%CF%83%CE%BC%CE%B9%CE%BA%CF%8C)" title="Tesseract (λογισμικό) – Greek" lang="el" hreflang="el" data-title="Tesseract (λογισμικό)" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Tesseract_OCR" title="Tesseract OCR – Spanish" lang="es" hreflang="es" data-title="Tesseract OCR" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AA%D8%B3%D8%B1%DA%A9%D8%AA_(%D9%86%D8%B1%D9%85%E2%80%8C%D8%A7%D9%81%D8%B2%D8%A7%D8%B1)" title="تسرکت (نرم‌افزار) – Persian" lang="fa" hreflang="fa" data-title="تسرکت (نرم‌افزار)" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Tesseract_(logiciel)" title="Tesseract (logiciel) – French" lang="fr" hreflang="fr" data-title="Tesseract (logiciel)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%85%8C%EC%84%9C%EB%9E%99%ED%8A%B8" title="테서랙트 – Korean" lang="ko" hreflang="ko" data-title="테서랙트" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%9F%E0%A5%87%E0%A4%B8%E0%A4%B0%E0%A5%88%E0%A4%95%E0%A5%8D%E0%A4%9F" title="टेसरैक्ट – Hindi" lang="hi" hreflang="hi" data-title="टेसरैक्ट" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Tesseract_(perangkat_lunak)" title="Tesseract (perangkat lunak) – Indonesian" lang="id" hreflang="id" data-title="Tesseract (perangkat lunak)" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Tesseract_(software)" title="Tesseract (software) – Italian" lang="it" hreflang="it" data-title="Tesseract (software)" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Tesseract_(software)" title="Tesseract (software) – Dutch" lang="nl" hreflang="nl" data-title="Tesseract (software)" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Tesseract_(%E3%82%BD%E3%83%95%E3%83%88%E3%82%A6%E3%82%A7%E3%82%A2)" title="Tesseract (ソフトウェア) – Japanese" lang="ja" hreflang="ja" data-title="Tesseract (ソフトウェア)" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Tesseract_(software)" title="Tesseract (software) – Portuguese" lang="pt" hreflang="pt" data-title="Tesseract (software)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Tesseract" title="Tesseract – Russian" lang="ru" hreflang="ru" data-title="Tesseract" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Tesseract_(ohjelmisto)" title="Tesseract (ohjelmisto) – Finnish" lang="fi" hreflang="fi" data-title="Tesseract (ohjelmisto)" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Tesseract_(yaz%C4%B1l%C4%B1m)" title="Tesseract (yazılım) – Turkish" lang="tr" hreflang="tr" data-title="Tesseract (yazılım)" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Tesseract" title="Tesseract – Ukrainian" lang="uk" hreflang="uk" data-title="Tesseract" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/Tesseract" title="Tesseract – Chinese" lang="zh" hreflang="zh" data-title="Tesseract" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q945242#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav 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(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Tesseract</caption><tbody><tr><td colspan="2" class="infobox-image logo"><span typeof="mw:File"><a href="/wiki/File:Tesseractv411_light.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Tesseractv411_light.png/250px-Tesseractv411_light.png" decoding="async" width="250" height="138" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Tesseractv411_light.png/375px-Tesseractv411_light.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Tesseractv411_light.png/500px-Tesseractv411_light.png 2x" data-file-width="589" data-file-height="324" /></a></span><div class="infobox-caption">Tesseract 4.1.1 reading an image.</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Original author(s)</a></th><td class="infobox-data">Ray Smith, <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a><sup id="cite_ref-TesseractHomePage_1-0" class="reference"><a href="#cite_note-TesseractHomePage-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><a href="/wiki/Google" title="Google">Google</a> and others</td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Stable release</a></th><td class="infobox-data"><div style="margin:0px;">5.5.0<sup id="cite_ref-wikidata-69f0c317cd3459f721baaa1ead2c4f76d2956a03-v18_2-0" class="reference"><a href="#cite_note-wikidata-69f0c317cd3459f721baaa1ead2c4f76d2956a03-v18-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> <span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q945242?uselang=en#P348" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span> / 10 November 2024</div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="url"><a rel="nofollow" class="external text" href="https://github.com/tesseract-ocr/tesseract.git">github<wbr />.com<wbr />/tesseract-ocr<wbr />/tesseract<wbr />.git</a></span> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q945242#P1324" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data"><a href="/wiki/C_(programming_language)" title="C (programming language)">C</a> and <a href="/wiki/C%2B%2B" title="C++">C++</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="infobox-data"><a href="/wiki/Linux" title="Linux">Linux</a>, <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a>, and <a href="/wiki/MacOS" title="MacOS">macOS</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Available in</th><td class="infobox-data">Interface: <a href="/wiki/English_language" title="English language">English</a> <br /> Recognition: <p><a href="/wiki/Afrikaans_language" class="mw-redirect" title="Afrikaans language">Afrikaans</a>, <a href="/wiki/Albanian_language" title="Albanian language">Albanian</a>, <a href="/wiki/Arabic_language" class="mw-redirect" title="Arabic language">Arabic</a>, <a href="/wiki/Azerbaijani_language" title="Azerbaijani language">Azerbaijani</a>, <a href="/wiki/Basque_language" title="Basque language">Basque</a>, <a href="/wiki/Belarusian_language" title="Belarusian language">Belarusian</a>, <a href="/wiki/Bengali_language" title="Bengali language">Bengali</a>, <a href="/wiki/Bulgarian_language" title="Bulgarian language">Bulgarian</a>, <a href="/wiki/Catalan_language" title="Catalan language">Catalan</a>, <a href="/wiki/Czech_language" title="Czech language">Czech</a>, <a href="/wiki/Cherokee_language" title="Cherokee language">Cherokee</a>, <a href="/wiki/Croatian_language" title="Croatian language">Croatian</a>, <a href="/wiki/Danish_language" title="Danish language">Danish</a>, <a href="/wiki/Dutch_language" title="Dutch language">Dutch</a>, <a href="/wiki/English_language" title="English language">English</a>, <a href="/wiki/Esperanto_language" class="mw-redirect" title="Esperanto language">Esperanto</a>, <a href="/wiki/Estonian_language" title="Estonian language">Estonian</a>, <a href="/wiki/Finnish_language" title="Finnish language">Finnish</a>, <a href="/wiki/French_language" title="French language">French</a>, <a href="/wiki/Galician_language" title="Galician language">Galician</a>, <a href="/wiki/German_language" title="German language">German</a>, <a href="/wiki/Greek_language" title="Greek language">Greek</a>, <a href="/wiki/Hindi_language" class="mw-redirect" title="Hindi language">Hindi</a>, <a href="/wiki/Hebrew_language" title="Hebrew language">Hebrew</a>, <a href="/wiki/Hungarian_language" title="Hungarian language">Hungarian</a>, <a href="/wiki/Indonesian_language" title="Indonesian language">Indonesian</a>, <a href="/wiki/Italian_language" title="Italian language">Italian</a>, <a href="/wiki/Japanese_language" title="Japanese language">Japanese</a>, <a href="/wiki/Kannada_language" class="mw-redirect" title="Kannada language">Kannada</a>, <a href="/wiki/Korean_language" title="Korean language">Korean</a>, <a href="/wiki/Latvian_language" title="Latvian language">Latvian</a>, <a href="/wiki/Lithuanian_language" title="Lithuanian language">Lithuanian</a>, <a href="/wiki/Malayalam_language" class="mw-redirect" title="Malayalam language">Malayalam</a>, <a href="/wiki/Macedonian_language" title="Macedonian language">Macedonian</a>, <a href="/wiki/Maltese_language" title="Maltese language">Maltese</a>, <a href="/wiki/Malay_language" title="Malay language">Malay</a>, <a href="/wiki/Norwegian_language" title="Norwegian language">Norwegian</a>, <a href="/wiki/Polish_language" title="Polish language">Polish</a>, <a href="/wiki/Portuguese_language" title="Portuguese language">Portuguese</a>, <a href="/wiki/Romanian_language" title="Romanian language">Romanian</a>, <a href="/wiki/Russian_language" title="Russian language">Russian</a>, <a href="/wiki/Serbian_language" title="Serbian language">Serbian</a>, <a href="/wiki/Slovak_language" title="Slovak language">Slovak</a>, <a href="/wiki/Slovenian_language" class="mw-redirect" title="Slovenian language">Slovenian</a>, <a href="/wiki/Spanish_language" title="Spanish language">Spanish</a>, <a href="/wiki/Swahili_language" title="Swahili language">Swahili</a>, <a href="/wiki/Swedish_language" title="Swedish language">Swedish</a>, <a href="/wiki/Tagalog_language" title="Tagalog language">Tagalog</a>, <a href="/wiki/Tamil_language" title="Tamil language">Tamil</a>, <a href="/wiki/Telugu_language" title="Telugu language">Telugu</a>, <a href="/wiki/Thai_language" title="Thai language">Thai</a>, <a href="/wiki/Turkish_language" title="Turkish language">Turkish</a>, <a href="/wiki/Ukrainian_language" title="Ukrainian language">Ukrainian</a>, <a href="/wiki/Vietnamese_language" title="Vietnamese language">Vietnamese</a> <sup id="cite_ref-TessLang_3-0" class="reference"><a href="#cite_note-TessLang-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> (more can be added using included training files)<sup id="cite_ref-TessData_4-0" class="reference"><a href="#cite_note-TessData-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/Optical_character_recognition" title="Optical character recognition">Optical character recognition</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data"><a href="/wiki/Apache_License_2.0" class="mw-redirect" title="Apache License 2.0">Apache License 2.0</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://github.com/tesseract-ocr">github<wbr />.com<wbr />/tesseract-ocr</a></span> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q945242?uselang=en#P856" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr></tbody></table> <p><b>Tesseract</b> is an <a href="/wiki/Optical_character_recognition" title="Optical character recognition">optical character recognition</a> engine for various operating systems.<sup id="cite_ref-Kay01Jul07_5-0" class="reference"><a href="#cite_note-Kay01Jul07-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> It is <a href="/wiki/Free_software" title="Free software">free software</a>, released under the <a href="/wiki/Apache_License" title="Apache License">Apache License</a>.<sup id="cite_ref-TesseractHomePage_1-1" class="reference"><a href="#cite_note-TesseractHomePage-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Google30Aug06_6-0" class="reference"><a href="#cite_note-Google30Aug06-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-UbuntuDoc_7-0" class="reference"><a href="#cite_note-UbuntuDoc-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> Originally developed by <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a> as proprietary software in the 1980s, it was released as open source in 2005 and development was sponsored by <a href="/wiki/Google" title="Google">Google</a> in 2006.<sup id="cite_ref-AnnouncingTesseractOCR2006_8-0" class="reference"><a href="#cite_note-AnnouncingTesseractOCR2006-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>In 2006, Tesseract was considered one of the most accurate open-source OCR engines available.<sup id="cite_ref-UbuntuDoc_7-1" class="reference"><a href="#cite_note-UbuntuDoc-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Linux.com_9-0" class="reference"><a href="#cite_note-Linux.com-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The Tesseract engine was originally developed as proprietary software at <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a> labs in <a href="/wiki/Bristol,_England" class="mw-redirect" title="Bristol, England">Bristol, England</a> and <a href="/wiki/Greeley,_Colorado" title="Greeley, Colorado">Greeley, Colorado</a> between 1985 and 1994, with more changes made in 1996 to port to Windows, and partial migration from <a href="/wiki/C_(programming_language)" title="C (programming language)">C</a> to <a href="/wiki/C%2B%2B" title="C++">C++</a> in 1998. A majority of the code was written in C, some written in C++. Since then, all the code has been converted to a C++ compiler.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (July 2023)">citation needed</span></a></i>]</sup> Very little work was done in the following decade. It was then released as an open source in 2005 by Hewlett-Packard and the <a href="/wiki/University_of_Nevada,_Las_Vegas" title="University of Nevada, Las Vegas">University of Nevada, Las Vegas</a> (UNLV). Tesseract development was sponsored by <a href="/wiki/Google" title="Google">Google</a> in 2006.<sup id="cite_ref-AnnouncingTesseractOCR2006_8-1" class="reference"><a href="#cite_note-AnnouncingTesseractOCR2006-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Version 4 adds <a href="/wiki/Long_short-term_memory" title="Long short-term memory">LSTM</a>-based OCR engine and models for many additional languages and scripts, bringing the total to 116 languages.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> Additionally 37 <a href="/wiki/Writing_system" title="Writing system">scripts</a> are supported. </p><p>Version 5 was released in 2021, after more than two years of testing and developing.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=2" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Tesseract was in the top three OCR engines in terms of character accuracy in 1995.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> It is available for <a href="/wiki/Linux" title="Linux">Linux</a>, <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Windows</a> and <a href="/wiki/Mac_OS_X" class="mw-redirect" title="Mac OS X">Mac OS X</a>.<sup id="cite_ref-Google30Aug06_6-1" class="reference"><a href="#cite_note-Google30Aug06-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-UbuntuDoc_7-2" class="reference"><a href="#cite_note-UbuntuDoc-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Tesseract, up to and including version 2, could only accept TIFF images of simple one-column text as inputs. These early versions did not include layout analysis, and so inputting multi-columned text, images, or equations produced garbled output. Since version 3, Tesseract has supported output text formatting, <a href="/wiki/HOCR" title="HOCR">hOCR</a><sup id="cite_ref-hOCR_13-0" class="reference"><a href="#cite_note-hOCR-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> positional information and page-layout analysis. Support for a number of new image formats was added using the <a href="/w/index.php?title=Leptonica&action=edit&redlink=1" class="new" title="Leptonica (page does not exist)">Leptonica</a> library. Tesseract can detect whether text is <a href="/wiki/Monospaced_font" title="Monospaced font">monospaced</a> or proportionally spaced.<sup id="cite_ref-UbuntuDoc_7-3" class="reference"><a href="#cite_note-UbuntuDoc-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>The initial versions of Tesseract could only recognize English-language text. </p><p>Tesseract v2 added six additional Western languages (French, Italian, German, Spanish, Brazilian Portuguese, Dutch). </p><p>Version 3 extended language support significantly to include ideographic (Chinese & Japanese) and right-to-left (e.g. Arabic, Hebrew) languages, as well as many more scripts. New languages included Arabic, Bulgarian, Catalan, Chinese (Simplified and Traditional), Croatian, Czech, Danish, German (<a href="/wiki/Fraktur" title="Fraktur">Fraktur</a> script), Greek, Finnish, Hebrew, Hindi, Hungarian, Indonesian, Japanese, Korean, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak (standard and Fraktur script), Slovenian, Swedish, Tagalog, Tamil, Thai, Turkish, Ukrainian and Vietnamese. </p><p>V3.04, released in July 2015, added an additional 39 language/script combinations, bringing the total count of support languages to over 100. New language codes included: amh (Amharic), asm (Assamese), aze_cyrl (Azerbaijana in Cyrillic script), bod (Tibetan), bos (Bosnian), ceb (Cebuano), cym (Welsh), dzo (Dzongkha), fas (Persian), gle (Irish), guj (Gujarati), hat (Haitian and Haitian Creole), iku (Inuktitut), jav (Javanese), kat (Georgian), kat_old (Old Georgian), kaz (Kazakh), khm (Central Khmer), kir (Kyrgyz), kur (Kurdish), lao (Lao), lat (Latin), mar (Marathi), mya (Burmese), nep (Nepali), ori (Oriya), pan (Punjabi), pus (Pashto), san (Sanskrit), sin (Sinhala), srp_latn (Serbian in Latin script), syr (Syriac), tgk (Tajik), tir (Tigrinya), uig (Uyghur), urd (Urdu), uzb (Uzbek), uzb_cyrl (Uzbek in Cyrillic script), yid (Yiddish).<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> It can be trained to work in other languages.<sup id="cite_ref-UbuntuDoc_7-4" class="reference"><a href="#cite_note-UbuntuDoc-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Tesseract can process <a href="/wiki/Right-to-left_text" class="mw-redirect" title="Right-to-left text">right-to-left text</a> such as Arabic or Hebrew, many Indic scripts as well as <a href="/wiki/CJK_characters" title="CJK characters">CJK</a> quite well. Accuracy rates are shown in this presentation for Tesseract tutorial at DAS 2016, Santorini by Ray Smith.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>Tesseract is suitable for use as a backend and can be used for more complicated OCR tasks including layout analysis by using a frontend such as <a href="/wiki/OCRopus" title="OCRopus">OCRopus</a>.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>Tesseract's output will have very poor quality if the input images are not preprocessed to suit it: Images (especially <a href="/wiki/Screenshot" title="Screenshot">screenshots</a>) must be <a href="/wiki/Image_scaling" title="Image scaling">scaled</a> up such that the text <a href="/wiki/X-height" title="X-height">x-height</a> is at least 20 pixels,<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> any rotation or skew must be corrected or no text will be recognized, low-frequency changes in brightness must be <a href="/wiki/High-pass_filter" title="High-pass filter">high-pass filtered</a>, or Tesseract's <a href="/wiki/Binary_image" title="Binary image">binarization</a> stage will destroy much of the page, and dark borders must be manually removed, or they will be misinterpreted as characters.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="User_interfaces">User interfaces</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=3" title="Edit section: User interfaces"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Tesseract_on_ocrfeeder.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Tesseract_on_ocrfeeder.png/220px-Tesseract_on_ocrfeeder.png" decoding="async" width="220" height="169" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/3/3c/Tesseract_on_ocrfeeder.png 1.5x" data-file-width="318" data-file-height="245" /></a><figcaption>Tesseract configuration window in OCRFeeder</figcaption></figure> <p>Tesseract is executed from the <a href="/wiki/Command-line_interface" title="Command-line interface">command-line interface</a>.<sup id="cite_ref-readme_19-0" class="reference"><a href="#cite_note-readme-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> While Tesseract is not supplied with a GUI, there are many separate projects which provide a GUI for it.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> One common example is <a href="/wiki/OCRFeeder" title="OCRFeeder">OCRFeeder</a>.<sup id="cite_ref-ocrf_21-0" class="reference"><a href="#cite_note-ocrf-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup>. A cross-platform open-source GUI is gImageReader <a rel="nofollow" class="external autonumber" href="https://github.com/manisandro/gImageReader">[1]</a> </p> <div class="mw-heading mw-heading2"><h2 id="Reception">Reception</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=4" title="Edit section: Reception"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In a July 2007 article on Tesseract, Anthony Kay of <i><a href="/wiki/Linux_Journal" title="Linux Journal">Linux Journal</a></i> termed it "a quirky command-line tool that does an outstanding job". At that time he noted "Tesseract is a bare-bones OCR engine. The build process is a little quirky, and the engine needs some additional features (such as layout detection), but the core feature, text recognition, is drastically better than anything else I've tried from the Open Source community. It is reasonably easy to get excellent recognition rates using nothing more than a scanner and some image tools, such as <a href="/wiki/GIMP" title="GIMP">The GIMP</a> and <a href="/wiki/Netpbm" title="Netpbm">Netpbm</a>."<sup id="cite_ref-Kay01Jul07_5-1" class="reference"><a href="#cite_note-Kay01Jul07-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>In November 2020, <a href="/wiki/Brewster_Kahle" title="Brewster Kahle">Brewster Kahle</a> from the <a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a> praised Tesseract saying: </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p>Tesseract has made a major step forward in the last few years. When we last evaluated the accuracy it was not as good as the proprietary OCR, but that has changed– we have done evaluations and it is just as good, and can get better for our application because of its new architecture.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup></p></blockquote> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/LibTIFF" title="LibTIFF">LibTIFF</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-TesseractHomePage-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-TesseractHomePage_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-TesseractHomePage_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFGoogle2008" class="citation web cs1"><a href="/wiki/Google" title="Google">Google</a> (2008). <a rel="nofollow" class="external text" href="https://github.com/tesseract-ocr/tesseract/">"tesseract-ocr"</a>. <i><a href="/wiki/GitHub" title="GitHub">GitHub</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">8 March</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitHub&rft.atitle=tesseract-ocr&rft.date=2008&rft.au=Google&rft_id=https%3A%2F%2Fgithub.com%2Ftesseract-ocr%2Ftesseract%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATesseract+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-wikidata-69f0c317cd3459f721baaa1ead2c4f76d2956a03-v18-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-wikidata-69f0c317cd3459f721baaa1ead2c4f76d2956a03-v18_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.0">"Release 5.5.0 · tesseract-ocr/tesseract"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">11 November</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Release+5.5.0+%C2%B7+tesseract-ocr%2Ftesseract&rft_id=https%3A%2F%2Fgithub.com%2Ftesseract-ocr%2Ftesseract%2Freleases%2Ftag%2F5.5.0&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATesseract+%28software%29" class="Z3988"></span></span> </li> <li id="cite_note-TessLang-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-TessLang_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://tesseract-ocr.github.io/tessdoc/Data-Files-in-different-versions.html">"Languages supported in different versions of Tesseract"</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20220808044714/https://tesseract-ocr.github.io/tessdoc/Data-Files-in-different-versions.html">Archived</a> from the original on 8 August 2022<span class="reference-accessdate">. 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Retrieved <span class="nowrap">1 December</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=blog.archive.org&rft.atitle=FOSS+wins+again%3A+Free+and+Open+Source+Communities+comes+through+on+19th+Century+Newspapers+%28and+Books+and+Periodicals...%29+-+Internet+Archive+Blogs&rft.date=2020-11-23&rft.au=Brewster+Kahle&rft_id=https%3A%2F%2Fblog.archive.org%2F2020%2F11%2F23%2Ffoss-wins-again-free-and-open-source-communities-comes-through-on-19th-century-newspapers-and-books-and-periodicals%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ATesseract+%28software%29" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tesseract_(software)&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span 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.navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Optical_character_recognition_software" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Optical_character_recognition" title="Template:Optical character recognition"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Optical_character_recognition" title="Template talk:Optical character recognition"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Optical_character_recognition" title="Special:EditPage/Template:Optical character recognition"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Optical_character_recognition_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Optical_character_recognition" title="Optical character recognition">Optical character recognition</a> software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free_software" title="Free software">Free software</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CuneiForm_(software)" title="CuneiForm (software)">CuneiForm</a></li> <li><a href="/wiki/GOCR" title="GOCR">GOCR</a></li> <li><a href="/wiki/Ocrad" title="Ocrad">Ocrad</a></li> <li><a href="/wiki/OCRFeeder" title="OCRFeeder">OCRFeeder</a></li> <li><a href="/wiki/OCRopus" title="OCRopus">OCRopus</a></li> <li><a class="mw-selflink selflink">Tesseract</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary software</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ABBYY_FineReader" title="ABBYY FineReader">ABBYY FineReader</a></li> <li><a href="/wiki/Adobe_Acrobat_Pro" class="mw-redirect" title="Adobe Acrobat Pro">Adobe Acrobat Pro</a></li> <li><a href="/wiki/Asprise_OCR" title="Asprise OCR">Asprise OCR</a></li> <li><a href="/wiki/Microsoft_Office_Document_Imaging" class="mw-redirect" title="Microsoft Office Document Imaging">Microsoft Office Document Imaging</a></li> <li><a href="/wiki/OmniPage" title="OmniPage">OmniPage</a></li> <li><a href="/wiki/ReadSoft" title="ReadSoft">ReadSoft</a></li> <li><a href="/wiki/SmartScore" title="SmartScore">SmartScore</a></li> <li><a href="/wiki/TeleForm" title="TeleForm">TeleForm</a></li> <li><a href="/wiki/VueScan" title="VueScan">VueScan</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Comparison_of_optical_character_recognition_software" title="Comparison of optical character recognition software">Comparison of optical character recognition software</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Google_free_and_open-source_software" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Google_FOSS" title="Template:Google FOSS"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Google_FOSS" title="Template talk:Google FOSS"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Google_FOSS" title="Special:EditPage/Template:Google FOSS"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Google_free_and_open-source_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Google" title="Google">Google</a> free and open-source software</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Software</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Applications</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chromium_(web_browser)" title="Chromium (web browser)">Chromium</a></li> <li><a href="/wiki/Gemini_(language_model)" title="Gemini (language model)">Gemma</a></li> <li><a href="/wiki/OpenRefine" title="OpenRefine">OpenRefine</a></li> <li><a class="mw-selflink selflink">Tesseract</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Programming languages</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Carbon_(programming_language)" title="Carbon (programming language)">Carbon</a></li> <li><a href="/wiki/Dart_(programming_language)" title="Dart (programming language)">Dart</a></li> <li><a href="/wiki/Go_(programming_language)" title="Go (programming language)">Go</a></li> <li><a href="/wiki/Sawzall_(programming_language)" title="Sawzall (programming language)">Sawzall</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Frameworks and<br />development tools</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Accelerated_Mobile_Pages" title="Accelerated Mobile Pages">AMP</a></li> <li><a href="/wiki/Angular_(web_framework)" title="Angular (web framework)">Angular</a></li> <li><a href="/wiki/AngularJS" title="AngularJS">AngularJS</a></li> <li><a href="/wiki/Apache_Beam" title="Apache Beam">Beam</a></li> <li><a href="/wiki/Bazel_(software)" title="Bazel (software)">Bazel</a></li> <li><a href="/wiki/Blockly" title="Blockly">Blockly</a></li> <li><a href="/wiki/Google_Closure_Tools" title="Google Closure Tools">Closure Tools</a></li> <li><a href="/wiki/Cpplint" title="Cpplint">Cpplint</a></li> <li><a href="/wiki/FlatBuffers" title="FlatBuffers">FlatBuffers</a></li> <li><a href="/wiki/Flutter_(software)" title="Flutter (software)">Flutter</a></li> <li><a href="/wiki/Gears_(software)" title="Gears (software)">Gears</a></li> <li><a href="/wiki/Gerrit_(software)" title="Gerrit (software)">Gerrit</a></li> <li><a href="/wiki/Google_Guava" title="Google Guava">Guava</a></li> <li><a href="/wiki/GRPC" title="GRPC">gRPC</a></li> <li><a href="/wiki/Gson" title="Gson">Gson</a></li> <li><a href="/wiki/Guetzli" title="Guetzli">Guetzli</a></li> <li><a href="/wiki/Google_Guice" title="Google Guice">Guice</a></li> <li><a href="/wiki/GVisor" title="GVisor">gVisor</a></li> <li><a href="/wiki/Kubernetes" title="Kubernetes">Kubernetes</a></li> <li><a href="/wiki/LevelDB" title="LevelDB">LevelDB</a></li> <li><a href="/wiki/Libvpx" title="Libvpx">libvpx</a></li> <li><a href="/wiki/Google_Native_Client" title="Google Native Client">NaCl</a></li> <li><a href="/wiki/OR-Tools" title="OR-Tools">OR-Tools</a></li> <li><a href="/wiki/Polymer_(library)" title="Polymer (library)">Polymer</a></li> <li><a href="/wiki/Protocol_Buffers" title="Protocol Buffers">Protocol Buffers</a></li> <li><a href="/wiki/TensorFlow" title="TensorFlow">TensorFlow</a></li> <li><a href="/wiki/V8_(JavaScript_engine)" title="V8 (JavaScript engine)">V8</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Operating systems</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Android_Open_Source_Project" class="mw-redirect" title="Android Open Source Project">AOSP</a></li> <li><a href="/wiki/ChromiumOS" title="ChromiumOS">ChromiumOS</a></li> <li><a href="/wiki/Fuchsia_(operating_system)" title="Fuchsia (operating system)">Fuchsia</a></li> <li><a href="/wiki/GLinux" title="GLinux">gLinux</a></li> <li><a href="/wiki/Goobuntu" title="Goobuntu">Goobuntu</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Google_Code-in" title="Google Code-in">Code-in</a></li> <li><i><a href="/wiki/Google_LLC_v._Oracle_America,_Inc." title="Google LLC v. Oracle America, Inc.">Google LLC v. Oracle America, Inc.</a></i></li> <li><a href="/wiki/Open_Source_Security_Foundation" title="Open Source Security Foundation">Open Source Security Foundation</a></li> <li><a href="/wiki/Google_Summer_of_Code" title="Google Summer of Code">Summer of Code</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Tesseract_(software)&oldid=1255380612">https://en.wikipedia.org/w/index.php?title=Tesseract_(software)&oldid=1255380612</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Optical_character_recognition_software" title="Category:Optical character recognition software">Optical character recognition software</a></li><li><a href="/wiki/Category:Free_software_programmed_in_C" title="Category:Free software programmed in C">Free software programmed in C</a></li><li><a href="/wiki/Category:Free_software_programmed_in_C%2B%2B" title="Category:Free software programmed in C++">Free software programmed in C++</a></li><li><a href="/wiki/Category:HP_software" title="Category:HP software">HP software</a></li><li><a href="/wiki/Category:Google_software" title="Category:Google software">Google software</a></li><li><a href="/wiki/Category:Formerly_proprietary_software" title="Category:Formerly proprietary software">Formerly proprietary software</a></li><li><a href="/wiki/Category:Software_using_the_Apache_license" title="Category:Software using the Apache license">Software using the Apache license</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Webarchive_template_wayback_links" title="Category:Webarchive template wayback links">Webarchive template wayback links</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_matches_Wikidata" title="Category:Short description matches Wikidata">Short description matches Wikidata</a></li><li><a href="/wiki/Category:Articles_with_a_promotional_tone_from_July_2024" title="Category:Articles with a promotional tone from July 2024">Articles with a promotional tone from July 2024</a></li><li><a href="/wiki/Category:All_articles_with_a_promotional_tone" title="Category:All articles with a promotional tone">All articles with a promotional tone</a></li><li><a href="/wiki/Category:Use_dmy_dates_from_March_2023" title="Category:Use dmy dates from March 2023">Use dmy dates from March 2023</a></li><li><a href="/wiki/Category:Use_American_English_from_March_2023" title="Category:Use American English from March 2023">Use American English from March 2023</a></li><li><a href="/wiki/Category:All_Wikipedia_articles_written_in_American_English" title="Category:All Wikipedia articles written in American English">All Wikipedia articles written in American English</a></li><li><a href="/wiki/Category:All_articles_with_unsourced_statements" title="Category:All articles with unsourced statements">All articles with unsourced statements</a></li><li><a href="/wiki/Category:Articles_with_unsourced_statements_from_July_2023" title="Category:Articles with unsourced statements from July 2023">Articles with unsourced statements from July 2023</a></li><li><a href="/wiki/Category:Commons_category_link_from_Wikidata" title="Category:Commons category link from Wikidata">Commons category link from Wikidata</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 4 November 2024, at 17:18<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. 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