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<!doctype html> <html lang="en-us" dir="ltr" data-has-hydrated="false"> <head> <meta charset="UTF-8"> <meta name="generator" content="Docusaurus v3.5.2"> <title data-rh="true">Home | Meta Open Source</title><meta data-rh="true" name="viewport" content="width=device-width,initial-scale=1"><meta data-rh="true" property="og:title" content="Home | Meta Open Source"><meta data-rh="true" name="description" content="The landing page of the official Meta Open Source website."><meta data-rh="true" property="og:description" content="The landing page of the official Meta Open Source website."><meta data-rh="true" property="og:image" content="https://opensource.fb.com/img/social-share-update.png"><meta data-rh="true" name="twitter:image" content="https://opensource.fb.com/img/social-share-update.png"><meta data-rh="true" name="twitter:image:alt" content="Image for Home | Meta Open Source"><meta data-rh="true" name="twitter:card" content="summary_large_image"><link data-rh="true" rel="shortcut icon" href="/img/favicon.png"><script data-rh="true">function insertBanner(){var n=document.createElement("div");n.id="__docusaurus-base-url-issue-banner-container";n.innerHTML='\n<div id="__docusaurus-base-url-issue-banner" style="border: thick solid red; 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Meta believes in the following tenets:</p></div><div class="pl-md-0 container"><div class="row buckets_Y0nU"><div class="col-sm-12 col-md-4 alpha0 bucket_tVbx"><h4>Collaboration</h4><p>Open source allows developers from around the world to proactively work together to achieve common goals.</p></div><div class="col-sm-12 col-md-4 alpha0 bucket_tVbx"><h4>Community</h4><p>Open source provides opportunities for the creation of diverse communities in support of the betterment of everyone.</p></div><div class="col-sm-12 col-md-4 alpha0 bucket_tVbx"><h4>Technology</h4><p>Open source has produced historic technologies, including operating systems, frameworks and programming languages.</p></div></div></div></section><section class="pb-100 pb-sm-50"><div class="container"><div class="cardRow_QOZ4 row justify-content-center"><div class="content_qO14 col-md-12"><p class="sectionHeading">Featured Media</p><div class="cardsContainer_fKLj row alpha0"><div class="col-sm-12 col-md-4"><a href="https://developers.facebook.com/blog/post/2023/01/17/open-source-2022-year-in-review/" target="_blank" rel="noopener noreferrer"><div class="clickableCard_qGdL contentCard_MqHV"><div class="root_p7nW"><div class="imageContainer_Kh0E aspectRatioContainer_m0mR aspectRatioContainerMobile_Sm0E" style="--aspect-ratio:calc(19/10);--aspect-ratio-mobile:calc(19/10)"><div class="image_kgcv" style="background-size:cover;background-repeat:no-repeat;position:relative;background-image:url("data:image/jpeg;base64,/9j/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAGAAoDASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAEH/8QAIhAAAQIGAgMBAAAAAAAAAAAAAQIDAAQFERITITEVMkFh/8QAFQEBAQAAAAAAAAAAAAAAAAAABAX/xAAdEQABAgcAAAAAAAAAAAAAAAABAAMCERIhIjFR/9oADAMBAAIRAxEAPwDOqDXKEw6XEUE7Wpc5OGYUeQAMseuyDaL5iSHD03V9o99akpTf7YZcD8hCLbGLEx1FbNMRI3Zf/9k=")"><svg style="width:100%;height:auto;max-width:100%;margin-bottom:-4px" width="640" height="418"></svg><noscript><img style="width:100%;height:auto;max-width:100%;margin-bottom:-4px;position:absolute;top:0;left:0" src="/assets/ideal-img/home-featured-blog.1c6b3db.640.jpg" srcset="/assets/ideal-img/home-featured-blog.1c6b3db.640.jpg 640w,/assets/ideal-img/home-featured-blog.954f7d2.1000.jpg 1000w" alt="Open Source: 2022 Year in Review" width="640" height="418"></noscript></div></div></div><p class="large-body">Open Source: 2022 Year in Review</p><span class="metadata">January 17, 2023</span></div></a></div><div class="col-sm-12 col-md-4"><a href="https://www.youtube.com/watch?v=QR84BJt4fw0" target="_blank" rel="noopener noreferrer"><div class="clickableCard_qGdL contentCard_MqHV"><div class="root_p7nW"><div class="imageContainer_Kh0E aspectRatioContainer_m0mR aspectRatioContainerMobile_Sm0E" style="--aspect-ratio:calc(19/10);--aspect-ratio-mobile:calc(19/10)"><div class="image_kgcv" style="background-size:cover;background-repeat:no-repeat;position:relative;background-image:url("data:image/jpeg;base64,/9j/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAGAAoDASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAUH/8QAIxAAAgEDAgcBAAAAAAAAAAAAAQIDAAQFEjEGERMUFiIyUf/EABUBAQEAAAAAAAAAAAAAAAAAAAIE/8QAGBEAAgMAAAAAAAAAAAAAAAAAAQIAESH/2gAMAwEAAhEDEQA/AM3HEXmDtjchYW2lOksRVAgTnIASNIB3b92JqTLirWOV07G39WI+2pSpWYoaXIhosz//2Q==")"><svg style="width:100%;height:auto;max-width:100%;margin-bottom:-4px" width="640" height="360"></svg><noscript><img style="width:100%;height:auto;max-width:100%;margin-bottom:-4px;position:absolute;top:0;left:0" src="/assets/ideal-img/home-featured-podcast.3b23d4d.640.jpg" srcset="/assets/ideal-img/home-featured-podcast.3b23d4d.640.jpg 640w,/assets/ideal-img/home-featured-podcast.c69eb03.1030.jpg 1030w" alt="The Diff Episode 10 Joel and Paul" width="640" height="360"></noscript></div></div></div><p class="large-body">The Diff Episode 10: Talking Open Source with Paul O'Shannessy</p><span class="metadata">December 7, 2021</span></div></a></div><div class="col-sm-12 col-md-4"><a href="https://youtube.com/playlist?list=PLzIwronG0sE49zLk608yB5GKKT8WbEhnZ" target="_blank" rel="noopener noreferrer"><div class="clickableCard_qGdL contentCard_MqHV"><div class="root_p7nW"><div class="imageContainer_Kh0E aspectRatioContainer_m0mR aspectRatioContainerMobile_Sm0E" style="--aspect-ratio:calc(19/10);--aspect-ratio-mobile:calc(19/10)"><div class="image_kgcv" style="background-size:cover;background-repeat:no-repeat;position:relative;background-image:url("data:image/jpeg;base64,/9j/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAGAAoDASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAQH/8QAHhAAAQQBBQAAAAAAAAAAAAAAAwABAhIxBBVBotH/xAAUAQEAAAAAAAAAAAAAAAAAAAAG/8QAGhEAAgIDAAAAAAAAAAAAAAAAAQIABBEhIv/aAAwDAQACEQMRAD8A0QUyEFITGnCVr2izYy7Kzc9VwXq3iIkNdQRsQwvKjE//2Q==")"><svg style="width:100%;height:auto;max-width:100%;margin-bottom:-4px" width="640" height="360"></svg><noscript><img style="width:100%;height:auto;max-width:100%;margin-bottom:-4px;position:absolute;top:0;left:0" src="/assets/ideal-img/home-featured-video.05b1be5.640.jpg" srcset="/assets/ideal-img/home-featured-video.05b1be5.640.jpg 640w,/assets/ideal-img/home-featured-video.695a337.1030.jpg 1030w" alt="Explain Like I'm 5: Season 3" width="640" height="360"></noscript></div></div></div><p class="large-body">Explain Like I'm 5: Season 3</p><span class="metadata">September 28, 2021</span></div></a></div></div><hr><a class="CTALink_gmr0 primary_yf5m cta_Okjj" aria-label="Go to link" style="--color:#3c4650" href="/media"><svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" fill="none" viewBox="0 0 40 40"><circle cx="20" cy="20" r="19.5" stroke="#232323"></circle><path fill="#232323" d="M19.813 13.188q.093-.094.28-.094c.095 0 .188.031.25.094l6.532 6.562c.063.063.125.156.125.25 0 .125-.062.188-.125.25l-6.531 6.563a.36.36 0 0 1-.25.093q-.187 0-.282-.093l-.625-.625c-.062-.063-.093-.125-.093-.25q0-.141.093-.282l4.844-4.843H13.375q-.188 0-.281-.094-.094-.095-.094-.282v-.875c0-.093.031-.187.094-.25a.4.4 0 0 1 .281-.125h10.656l-4.843-4.843q-.094-.094-.094-.281c0-.094.031-.188.093-.25z"></path></svg><span>See all media</span></a></div></div></div><div class="p-5"></div><div class="container"><div class="cardRow_QOZ4 row justify-content-center"><div class="content_qO14 col-md-12"><p class="sectionHeading">Popular Projects</p><div class="cardsContainer_fKLj row alpha0"><div class="col-sm-12 col-md-4"><a href="https://docusaurus.io" target="_blank" rel="noopener noreferrer"><div class="clickableCard_qGdL projectCard_VFlT"><div class="aspectRatioContainer_m0mR" style="--aspect-ratio:calc(16/10);--aspect-ratio-mobile:calc(undefined)"><div class="image_kgcv" style="background-size:cover;background-repeat:no-repeat;position:relative;background-image:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAdElEQVR4nGNgZmb+z8jICMcMDAxgjCwGUsPAxMQEl2RgZPjPIsD+n4Gf7T8DkiawGjDBCBFgFeb8b7M38n/VqYr/olJCUJOxKOSS5/tvdTrh/9KH0f/1jaEKmZAVwqxgY/7PJsXzn0+G6z8bO5I4SA2xngEAYL5EUgEhjioAAAAASUVORK5CYII=")"><svg style="width:100%;height:auto;max-width:100%;margin-bottom:-4px" width="640" height="404"></svg><noscript><img style="width:100%;height:auto;max-width:100%;margin-bottom:-4px;position:absolute;top:0;left:0" src="/assets/ideal-img/docusaurus-dark-background.2c5d38e.640.png" srcset="/assets/ideal-img/docusaurus-dark-background.2c5d38e.640.png 640w,/assets/ideal-img/docusaurus-dark-background.3347d9c.760.png 760w" alt="Meta Open Source Project" width="640" height="404"></noscript></div></div><div class="content_o_6M alpha0"><span class="kicker_DwVx large-body">Documentation</span><h4>Docusaurus</h4><p>Setup a website for your documentation quickly and easily.</p><div class="CTALink_gmr0 secondary__v9j cta_QdQ5" style="--color:#3c4650"><span>View Project</span><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="none" viewBox="0 0 14 14"><path fill="#C4C4C4" d="m6.813.219-.625.594c-.157.156-.157.406 0 .53l4.843 4.845H.375A.38.38 0 0 0 0 6.563v.875c0 .218.156.375.375.375h10.656l-4.844 4.875c-.156.124-.156.374 0 .53l.625.595c.125.156.375.156.532 0l6.531-6.532a.36.36 0 0 0 0-.531L7.344.219c-.157-.156-.407-.156-.532 0"></path></svg></div></div></div></a></div><div class="col-sm-12 col-md-4"><a href="https://reactjs.org" target="_blank" rel="noopener noreferrer"><div class="clickableCard_qGdL projectCard_VFlT"><div class="aspectRatioContainer_m0mR" style="--aspect-ratio:calc(16/10);--aspect-ratio-mobile:calc(undefined)"><div class="image_kgcv" style="background-size:cover;background-repeat:no-repeat;position:relative;background-image:url("data:image/jpeg;base64,/9j/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAAGAAoDASIAAhEBAxEB/8QAFgABAQEAAAAAAAAAAAAAAAAAAAUI/8QAGhAAAwADAQAAAAAAAAAAAAAAAAMEBRETMv/EABUBAQEAAAAAAAAAAAAAAAAAAAEC/8QAFhEBAQEAAAAAAAAAAAAAAAAAAQAh/9oADAMBAAIRAxEAPwDNWPrhTiLUUR9ama5N34JIAtIa3//Z")"><svg style="width:100%;height:auto;max-width:100%;margin-bottom:-4px" width="640" height="404"></svg><noscript><img style="width:100%;height:auto;max-width:100%;margin-bottom:-4px;position:absolute;top:0;left:0" src="/assets/ideal-img/react.28bdad0.640.jpg" srcset="/assets/ideal-img/react.28bdad0.640.jpg 640w,/assets/ideal-img/react.87325ba.760.jpg 760w" alt="Meta Open Source Project" width="640" height="404"></noscript></div></div><div class="content_o_6M alpha0"><span class="kicker_DwVx large-body">Frameworks</span><h4>React</h4><p>A JavaScript framework for building awesome user interfaces.</p><div class="CTALink_gmr0 secondary__v9j cta_QdQ5" style="--color:#3c4650"><span>View Project</span><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="none" viewBox="0 0 14 14"><path fill="#C4C4C4" d="m6.813.219-.625.594c-.157.156-.157.406 0 .53l4.843 4.845H.375A.38.38 0 0 0 0 6.563v.875c0 .218.156.375.375.375h10.656l-4.844 4.875c-.156.124-.156.374 0 .53l.625.595c.125.156.375.156.532 0l6.531-6.532a.36.36 0 0 0 0-.531L7.344.219c-.157-.156-.407-.156-.532 0"></path></svg></div></div></div></a></div><div class="col-sm-12 col-md-4"><a href="https://pytorch.org" target="_blank" rel="noopener noreferrer"><div class="clickableCard_qGdL projectCard_VFlT"><div class="aspectRatioContainer_m0mR" style="--aspect-ratio:calc(16/10);--aspect-ratio-mobile:calc(undefined)"><div class="image_kgcv" style="background-size:cover;background-repeat:no-repeat;position:relative;background-image:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAGCAYAAAD68A/GAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAfUlEQVR4nFWPsQ6DMAxEbQeiNqgiQjCFof0EJgbG/gII/v9HDsUhiAy2rLsnn46MMWBmHWEGEd131iNDIqJmnqVz6G1VaMrEJZcwdw7/4YOvs5j8O31/goYTuI8e4VXj11gco1ctejeYIwZbYQst1tAW8co8yzClElqEyjInghlAlUUV7EEAAAAASUVORK5CYII=")"><svg style="width:100%;height:auto;max-width:100%;margin-bottom:-4px" width="640" height="404"></svg><noscript><img style="width:100%;height:auto;max-width:100%;margin-bottom:-4px;position:absolute;top:0;left:0" src="/assets/ideal-img/pytorch-dark-background.e5de6b0.640.png" srcset="/assets/ideal-img/pytorch-dark-background.e5de6b0.640.png 640w,/assets/ideal-img/pytorch-dark-background.f59ded3.760.png 760w" alt="Meta Open Source Project" width="640" height="404"></noscript></div></div><div class="content_o_6M alpha0"><span class="kicker_DwVx large-body">Frameworks</span><h4>PyTorch</h4><p>A Python-based machine learning framework for dynamic neural networks.</p><div class="CTALink_gmr0 secondary__v9j cta_QdQ5" style="--color:#3c4650"><span>View Project</span><svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="none" viewBox="0 0 14 14"><path fill="#C4C4C4" d="m6.813.219-.625.594c-.157.156-.157.406 0 .53l4.843 4.845H.375A.38.38 0 0 0 0 6.563v.875c0 .218.156.375.375.375h10.656l-4.844 4.875c-.156.124-.156.374 0 .53l.625.595c.125.156.375.156.532 0l6.531-6.532a.36.36 0 0 0 0-.531L7.344.219c-.157-.156-.407-.156-.532 0"></path></svg></div></div></div></a></div></div><hr><a 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