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  <h1 id="dev_page_title">Telegram Database Library</h1>
  
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<p><strong>TDLib</strong> (Telegram Database Library) is a cross-platform, fully functional Telegram client. We designed it to help third-party developers create their own <strong>custom apps</strong> using the Telegram platform.</p>
<blockquote>
<p><a href="https://telegram.org/blog/tdlib">Read about TDLib on the Telegram blog »</a></p>
</blockquote>
<h4><a class="anchor" name="tdlib-advantages" href="#tdlib-advantages"><i class="anchor-icon"></i></a>TDLib Advantages</h4>
<ul>
<li><strong>Cross-platform</strong>. TDLib can be used on Android, iOS, Windows, macOS, Linux, WebAssembly, FreeBSD, Windows Phone, watchOS, tvOS, Tizen, Cygwin. It should also work on other *nix systems with or without minimal effort.</li>
<li><strong>Multilanguage</strong>. TDLib can be easily used with <strong>any programming language</strong> that is able to execute C functions. Additionally it already has native bindings to Java (using JNI) and C# (using C++/CLI).</li>
<li><strong>Easy to use</strong>. TDLib takes care of all <strong>network implementation details</strong>, <strong>encryption</strong> and <strong>local data storage</strong>.</li>
<li><strong>High-performance</strong>. In the Telegram Bot API, each TDLib instance handles more than <strong>24,000</strong> active bots simultaneously.</li>
<li><strong>Well-documented</strong>. All TDLib API methods and public interfaces are <a href="/tdlib/docs/"><strong>fully documented</strong></a>.</li>
<li><strong>Consistent</strong>. TDLib guarantees that all updates will be delivered in the <strong>right order</strong>.</li>
<li><strong>Reliable</strong>. TDLib remains <strong>stable</strong> on slow and unreliable Internet connections.</li>
<li><strong>Secure</strong>: All local data is <strong>encrypted</strong> using a user-provided encryption key.</li>
<li><strong>Fully-asynchronous</strong>. Requests to TDLib don&#39;t block each other or anything else, responses will be sent when they are available.</li>
</ul>
<blockquote>
<p><a href="https://core.telegram.org/tdlib/getting-started">Getting started with TDLib »</a></p>
</blockquote>
<h4><a class="anchor" name="resources" href="#resources"><i class="anchor-icon"></i></a>Resources</h4>
<p>TDLib is fully <strong>open source</strong>, all code is available on <a href="https://github.com/tdlib/td">GitHub</a>.</p>
<p><strong>See also:</strong></p>
<ul>
<li><a href="/tdlib/docs/">Library documentation</a></li>
<li><a href="/tdlib/options">List of available options</a></li>
<li><a href="/tdlib/notification-api/">Notification API documentation</a></li>
<li><a href="/tdlib/tdlib.zip">Prebuilt library for Android</a></li>
</ul>
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