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oberhumer.com: LZO real-time data compression library
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All Rights Reserved. --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>oberhumer.com: LZO real-time data compression library</title> <meta name="description" content="LZO real-time data compression library" /> <meta name="keywords" content= "LZO, compress, compression, data compression, datacompression, real-time, real time, library, fast, archiver, communication, packer, fast compression, real-time compression, realtime compression, fast data compression, fast datacompression, fast compress, opensource, oberhumer.com" /> <link rel="stylesheet" href="/content/css/fonts.css" type="text/css" /> <link rel="stylesheet" href="/content/css/main.css" title="main.css" type="text/css" /> <link rel="alternate stylesheet" href="/content/css/empty.css" title="empty.css" type="text/css" /> <link rel="alternate stylesheet" href="/content/css/test01.css" title="test01.css" type="text/css" /> <link rel="icon" href="/favicon.ico" type="image/x-icon" /> <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" /> <link rev="made" href="mailto:webmaster@oberhumer.com" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta http-equiv="pragma" content="no-cache" /> <meta name="author" content="oberhumer.com GmbH <webmaster@oberhumer.com>" /> <meta name="MSSmartTagsPreventParsing" content="TRUE" /> <meta name="revisit-after" content="10 days" /> <meta name="robots" content="noarchive, index, follow" /> </head> <body id="www-oberhumer-com"> <div class="s01a_1" align="center"><div class="s01a_2"><br /></div><div class="s01a_3"><div class="s01a_4"> <div align="center"><table class="toptop"><tr><td> <table class="topnav" align="right"> <tr class="topnav" align="right"> <td align="right"><a class="inactive" href="/"><span class="inactive">Home</span></a></td> <td align="right"><a class="inactive" href="/products/lzo-professional/"><span class="inactive">Products</span></a></td> <td align="right"><a class="active" href="/opensource/"><span class="active">OpenSource</span></a></td> <td align="right"><a class="inactive" href="/company/"><span class="inactive">Company</span></a></td> </tr> </table> </td></tr><tr><td> <table class="topimg"><tr> <td> </td> <td class="td2" align="right">LZO</td> </tr></table> </td></tr></table></div> <div class="main_div"> <table class="main_table" width="100%"><tr> <td width="100%" valign="top"> <div align="center"> <p><font size="+3">Version 2.10<br /></font></p> 01 Mar 2017<br /> <br /> Copyright (C) 1996 - 2017<br /> Markus F.X.J. Oberhumer <br /> <br /> <p align="center"> <a href="#news">[News]</a> <a href="#abstract">[Abstract]</a> <a href="#download">[Download]</a> <a href="#minilzo">[miniLZO]</a> <a href="#links">[Links]</a> </p> </div> <br /> <h3><a name="news"><font size="+3">N</font>ews</a></h3> <ul class="ulw"> <li>LZO 2.10 has been released; a small update that fixes various build issues. </li> </ul> <h3><a name="abstract"><font size="+3">K</font>ey Facts</a></h3> <ul class="ulw"> <li>LZO is a portable lossless data compression library written in ANSI C. </li> <li>Offers pretty fast compression and *<em>extremely</em>* fast decompression. </li> <li>One of the fastest compression and decompression algorithms around. See the ratings for <a href="/opensource/lzop/">lzop</a> in the famous <a href="http://compression.ca/act/act-summary.html">Archive Comparison Test</a> . </li> <li>Includes slower compression levels achieving a quite competitive compression ratio while still decompressing at this very high speed. </li> <li>Distributed under the terms of the <a href="/opensource/gpl.html">GNU General Public License</a> (GPL v2+). Commercial licenses are available through our <a href="/products/lzo-professional/">LZO Professional</a> license program. </li> </ul> <h3><a name="download"><font size="+3">D</font>ownload</a></h3> <dl> <dd> <p>LZO is distributed as portable ANSI C source code. </p> </dd> <dd> <p><a href="download/lzo-2.10.tar.gz">Download LZO</a> (source code, 587 kB, SHA1: 4924676a9bae5db58ef129dc1cebce3baa3c4b5d). </p> </dd> </dl> <h3><a name="minilzo">mini<font size="+2">LZO</font></a></h3> <dl> <dd> <p>miniLZO is a very lightweight <b>subset</b> of the LZO library intended for easy inclusion with your application. It is <b>generated automatically</b> from the LZO source code and contains the most important LZO functions.</p> </dd> <dd> <p>Very easy to use - it only takes a few <b>minutes</b> to add data compression to your application!</p> </dd> <dd> <p><a href="download/minilzo-2.10.tar.gz">Download miniLZO</a> (source code, 62 kB, SHA1: c7432708d49017a3f0b4f44c99d336f8a1be84f5). </p> </dd> </dl> <h3><a name="links"><font size="+3">R</font>elated links</a></h3> <ul class="ulw"> <li><a href="/products/lzo-professional/">LZO Professional</a> is our commercial LZO license program. </li> <li>If you need better compression you should take a look at the excellent <a href="http://www.zlib.net/">zlib library</a>. zlib is slower and needs more memory, though. </li> <li>For even better compression consider using <i>libbzip2</i> which is distributed with the <a href="http://www.bzip.org/">bzip2 file compressor</a>. </li> <li>The file compressor application <a href="/opensource/lzop/">lzop</a> uses LZO - it is very similar to <a href="http://www.gzip.org/">gzip</a> but much faster. </li> </ul> </td> <td width="15"><p style="width:15px; min-width:15px;"> </p></td> </tr></table> </div> <hr /> <div class="copyright" align="center"> Copyright © 2024 oberhumer.com GmbH. 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