Telegram React - Telegram web client with tdlib, webassembly and react js under the hood.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Webogram - Webogram is an unofficial Telegram web app.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
tg - Command-line interface for http://alternativeto.net/software/telegram/. Uses readline interface.