Mobile apps

Telegram for Android

Telegram for iPhone and iPad

Telegram for WP

Telegram for Firefox OS

Desktop apps

Telegram for Windows/Mac/Linux

Telegram for Mac OS X

Web apps

Telegram Web-version

Telegram Chrome app

Unofficial apps

Telegram CLI for Linux

Source code

For the moment we are focusing on open sourcing the things that allow developers to quickly build something using our API. We have published the code for our Android, iOS, web and desktop apps (Win, OSX and Linux). We will be releasing more code eventually.

Telegram for Android

Official Android App, see Google Play Market page for full description.
Licensed under GNU GPL v. 2 or later.
GitHub »

Messenger for Telegram OSX

Native OSX client.
Licensed under GNU GPL v. 2.
GitHub »

Telegram for Web browsers

Javascript client for browsers. Mac, Windows, Linux.
Licensed under GNU GPL v. 3.
GitHub »

Telegram Desktop

Qt-based desktop client. Mac, Windows, Linux.
Licensed under GNU GPL v. 3.
GitHub »

Telegram CLI (Unofficial)

Linux Command-line interface for Telegram.
Licensed under GNU GPL v. 2.
GitHub »

Telegram for iPhone

Licensed under GNU GPL v. 2 or later.
GitHub »

Telegram for WP

Licensed under GNU GPL v. 2 or later.
Available here »