<!DOCTYPE html> <html class=""> <head> <meta charset="utf-8"> <title>TDLib – Build Your Own Telegram</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta property="og:title" content="TDLib – Build Your Own Telegram"> <meta property="og:image" content="https://telegram.org/file/811140277/1526/aNtWR8fh9HI.173440/c5fa1e7fb281038e0c"> <meta property="og:site_name" content="Telegram"> <meta property="og:description" content="Meet TDLib, a powerful library for third-party developers that makes it easy to build fast, secure and feature-rich Telegram apps."> <meta property="article:published_time" content="2018-01-31T22:58:31+00:00"><meta name="twitter:card" content="summary_large_image" /><meta name="twitter:image" content="https://telegram.org/file/811140277/1526/aNtWR8fh9HI.173440/c5fa1e7fb281038e0c" /> <meta property="fb:app_id" content="254098051407226"> <meta property="vk:app_id" content="3782569"> <meta name="apple-itunes-app" content="app-id=686449807"> 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Since day one, we've also had a <strong>free</strong> and <strong>open</strong> <a href="https://core.telegram.org/api"><strong>Telegram API</strong></a> that allows anyone to create <strong>their own messaging apps</strong> operating in the Telegram cloud. These apps openly compete with the official ones and some of them have now reached more than <strong>10 million</strong> downloads on Google Play.</p> <p>Users of these alternative clients can communicate with anyone on Telegram, but the apps often offer experimental, highly specialized or locally flavored features. Today we are introducing <strong>a new tool</strong> for third-party developers that will make it even easier to build <strong>fast</strong>, <strong>secure</strong> and <strong>feature-rich</strong> Telegram apps on our platform.</p> <h3><a class="anchor" name="introducing-tdlib" href="#introducing-tdlib"><i class="anchor-icon"></i></a>Introducing TDLib</h3> <p>Meet TDLib – the <a href="https://core.telegram.org/tdlib"><strong>Telegram Database Library</strong></a>. TDLib takes care of all <strong>network implementation</strong> details, <strong>encryption</strong> and <strong>local data storage</strong>, so that developers can dedicate more time to design, responsive interfaces and beautiful animations.</p> <h5><a class="anchor" name="universally-useful" href="#universally-useful"><i class="anchor-icon"></i></a>Universally useful</h5> <p>TDLib supports all Telegram features and makes developing Telegram apps a breeze on <strong>any platform</strong>. It can be used on Android, iOS, Windows, macOS, Linux and virtually any other system. The library is compatible with <strong>any programming language</strong> that can execute C functions; it also has native bindings to Java and C#.</p> <h5><a class="anchor" name="open-and-well-documented" href="#open-and-well-documented"><i class="anchor-icon"></i></a>Open and well-documented</h5> <p>All TDLib API methods and public interfaces are <a href="https://core.telegram.org/tdlib/docs/"><strong>fully documented</strong></a>. The code is, of course, completely open and available on <a href="https://github.com/tdlib/td"><strong>GitHub</strong></a>.</p> <h5><a class="anchor" name="secure-and-reliable" href="#secure-and-reliable"><i class="anchor-icon"></i></a>Secure and reliable</h5> <p>TDLib will remain <strong>stable</strong> on slow and unreliable Internet connections and guarantees that all updates will be delivered in the correct order. All <strong>local data is encrypted</strong> using a user-provided encryption key.</p> <h5><a class="anchor" name="optimized-for-performance" href="#optimized-for-performance"><i class="anchor-icon"></i></a>Optimized for performance</h5> <p>The library is fully asynchronous and optimized for high performance. We use TDLib in the Telegram Bot API, where <strong>each</strong> TDLib instance handles more than <strong>18,000</strong> active bots simultaneously.</p> <h5><a class="anchor" name="battle-tested" href="#battle-tested"><i class="anchor-icon"></i></a>Battle-tested</h5> <p>Our new <a href="/blog/telegram-x"><strong>Android X</strong></a> client is an example of what can be done with TDLib. Using TDLib, it took the developer of the app approximately one year to reproduce <strong>all</strong> the major features of Telegram for Android – and add plenty of his own.</p> <div><br></div> <p>Let's see what else TDLib will help bring to the Telegram ecosystem this year.</p> <p><em>January 31, 2018,<br>The Telegram Team</em></p> <div><br></div> <blockquote> <p>P.S. Today, we're also introducing Telegram X for Android, a new official app.<br><a href="/blog/telegram-x">Check out the announcement here »</a></p> </blockquote> </div> </div> <div class="tl_main_share clearfix"> <a href="https://t.me/share/url?url=https%3A%2F%2Ftelegram.org%2Fblog%2Ftdlib&text=Introducing%20TDLib%2C%20a%20powerful%20library%20for%20third-party%20developers%20of%20Telegram%20clients." class="tl_telegram_share_btn" id="tl_telegram_share_btn" data-text="Introducing TDLib, a powerful library for third-party developers of Telegram clients." data-url="https://telegram.org/blog/tdlib"><i class="tl_telegram_share_icon"></i><span class="tl_telegram_share_label" target="_blank">Forward</span></a> <a href="https://twitter.com/share" class="tl_twitter_share_btn" id="tl_twitter_share_btn" data-text="Introducing TDLib, a powerful library for third-party developers of Telegram clients." data-url="https://telegram.org/blog/tdlib" data-via="Telegram">Tweet <span class="tl_twitter_share_cnt"></span></a> </div> </div> <div class="tl_main_recent_news_wrap tlb_other_news_wrap tl_blog_list_page_wrap"> <h3 class="tl_main_recent_news_header"> <a href="/blog">Other News</a> </h3> <div class="tl_main_recent_news_cards clearfix"> <a class="dev_blog_card_link_wrap" href="/blog/giveaways"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/400780400867/1/urmYJbbNk5E.288288/8288e7d1770857dcf1" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Giveaways in Channels and Free Premium</h4> <div class="dev_blog_card_lead">Channel owners can now launch Giveaways to randomly distribute prizes among their followers. This is great if you want to promote your channel, get new subscribers or reward existing…</div> </div> <div class="dev_blog_card_date">Nov 6, 2023</div> </div></a><a class="dev_blog_card_link_wrap" href="/blog/reply-revolution"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/400780400780/1/g_radu3Y0M8.287207/035dae82b433286e51" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Replies 2.0, Adjustable Link Previews, Name Colors and More</h4> <div class="dev_blog_card_lead">Today's update lets you quote specific parts of messages when replying, send your replies to other chats, add quote formatting to any text…</div> </div> <div class="dev_blog_card_date">Oct 28, 2023</div> </div></a><a class="dev_blog_card_link_wrap" href="/blog/channel-stories"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/400780400873/1/yQiyKrn7_NE.258715/33a6d6c835c123263a" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Stories in Channels, View-Once Media and More</h4> <div class="dev_blog_card_lead">Channels can start posting stories thanks to a new boost system. Stories now have reaction stickers and the option to add your own music.…</div> </div> <div class="dev_blog_card_date">Sep 22, 2023</div> </div></a><a class="dev_blog_card_link_wrap" href="/blog/stories"><div class="dev_blog_card_wrap"> <img class="dev_blog_card_image" src="https://telegram.org/file/400780400235/1/EGhTEUUJH1w.281459/58c6756821cb43d0ca" /> <div class="dev_blog_card_alltext_wrap"> <h4 class="dev_blog_card_title">Stories and 10 Years of Telegram</h4> <div class="dev_blog_card_lead">In this update, we launch Stories – with a unique dual camera mode, granular privacy settings, flexible duration options and much more.</div> </div> <div class="dev_blog_card_date">Aug 14, 2023</div> </div></a> </div> </div> </div> </div> </div> <div class="footer_wrap"> <div class="footer_columns_wrap footer_desktop"> <div class="footer_column footer_column_telegram"> <h5>Telegram</h5> <div class="footer_telegram_description"></div> Telegram is a cloud-based mobile and desktop messaging app with a focus on security and speed. </div> <div class="footer_column"> <h5><a href="/faq">About</a></h5> <ul> <li><a href="/faq">FAQ</a></li> <li><a href="/privacy">Privacy</a></li> <li><a href="/press">Press</a></li> </ul> </div> <div class="footer_column"> <h5><a href="/apps#mobile-apps">Mobile Apps</a></h5> <ul> <li><a href="/dl/ios">iPhone/iPad</a></li> <li><a href="/android">Android</a></li> <li><a href="/dl/web">Mobile Web</a></li> </ul> </div> <div class="footer_column"> <h5><a href="/apps#desktop-apps">Desktop Apps</a></h5> <ul> <li><a href="//desktop.telegram.org/">PC/Mac/Linux</a></li> <li><a href="//macos.telegram.org/">macOS</a></li> <li><a href="/dl/web">Web-browser</a></li> </ul> </div> <div class="footer_column footer_column_platform"> <h5><a href="//core.telegram.org/">Platform</a></h5> <ul> <li><a href="//core.telegram.org/api">API</a></li> <li><a href="//translations.telegram.org/">Translations</a></li> <li><a href="//instantview.telegram.org/">Instant View</a></li> </ul> </div> </div> <div class="footer_columns_wrap footer_mobile"> <div class="footer_column"> <h5><a href="/faq">About</a></h5> </div> <div class="footer_column"> <h5><a href="/blog">Blog</a></h5> </div> <div class="footer_column"> <h5><a href="/apps">Apps</a></h5> </div> <div class="footer_column"> <h5><a href="//core.telegram.org/">Platform</a></h5> </div> <div class="footer_column"> <h5><a href="/press">Press</a></h5> </div> </div> </div> <script src="/js/main.js?47"></script> <script>twitterCustomShareInit(); blogSideImageInit(); backToTopInit("Go up"); removePreloadInit(); </script> </body> </html>