What are the best open-source communication apps for Mac?

By community activity, Ice Cubes, Signal and Telegram are the top picks on Mac App Index right now.

Are open-source communication apps free on Mac?

Yes. Every open-source communication app here is free or free to start.

How many open-source communication apps are there for Mac?

Mac App Index lists 4 apps: 4 completely free, 0 free to start, 0 paid upfront and 0 by subscription. 4 are open source.

Open-source communication apps for Mac

4 open-source communication apps for Mac, with code you can read, build and fork. 4 are free to download. Most popular right now: Ice Cubes, Signal and Telegram.

All Free Freemium Paid Subscription

Ice Cubes

Open-source Mastodon client

124FreeCommunication

Signal

Private messaging with end-to-end encryption

78FreeCommunication

Fast, cloud-based messaging

80FreeCommunication

Thunderbird

Free email client from Mozilla

31FreeCommunication

How we picked: every app here is listed in communication on Mac App Index and publishes its source code. Apps are sorted by community activity; switch to Top or New to reorder them. How we rank apps

Frequently asked questions

What are the best open-source communication apps for Mac?: By community activity, Ice Cubes, Signal and Telegram are the top picks on Mac App Index right now.
Are open-source communication apps free on Mac?: Yes. Every open-source communication app here is free or free to start.
How many open-source communication apps are there for Mac?: Mac App Index lists 4 apps: 4 completely free, 0 free to start, 0 paid upfront and 0 by subscription. 4 are open source.