AstraChat Alternatives

Mattermost is an open source alternative to Slack.

Open Source

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Open Source

The fastest way to send files over the internet

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A messaging app for teams who see through the Earth!

Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.

Open Source

Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework.

Open Source

Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.

Open-source video calling and chat platform.

Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

Open Source

Brosix will improve the efficiency and decrease the expenses of your business by providing you all-in-one features package and many control functions.

freemium $4.0 / Annually (Private Team Network, Full Control over user accounts)

Facebook Messenger is a faster way to message.

World's Most Scalable Voice, Video & Chat SDK for Small, Medium & Enterprises

Open Source paid Free Trial

A faster way for your team to communicate