Telegram Applications

Telegram apps are open source and support reproducible builds. Anyone can independently verify that Telegram apps you download from App Store or Google Play were built using the exact same code that we publish.

Mobile apps

Desktop apps

Web apps

Telegram Database Library (TDLib)

TDLib – a cross-platform client designed to facilitate creating custom apps on the Telegram platform.
Telegram X for Android – a slick experimental Telegram client based on TDLib.

Unofficial apps

Unigram, a client optimized for Windows (based on TDLib) (desktop and Xbox)
Telegram CLI for Linux
MadelineProto

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, macOS and Linux) as well as the Telegram Database Library.

This code allows security researchers to fully evaluate our end-to-end encryption implementation. It is also possible to independently verify that Telegram apps available on Google Play and App Store are built using the same code that we publish on GitHub.