Spectrum Chat Alternatives

A messaging app for teams who see through the Earth!

handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited

Assembly is an employee recognition software powered by AI that boosts engagement and productivity. Empower teams with peer-to-peer recognition, rewards, and performance tracking. Simplify HR processes and foster a positive workplace culture.

Try for free freemium

Live life unlimited. Free video meetings and team messaging in one app that works the way you do.

Mattermost is an open source alternative to Slack.

Open Source

A desktop chat client for Discord and Slack

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

Open Source

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

Get a T-shirt with your GitHub contribution map on it

Minsh is a mobile-first dedicated communication tool for teams

FreeLists provides the internet community with Free, no-hassle, high-quality mailing lists

Where developers come to talk.

Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.

Open Source free

Connect with your guests through their mobile devices and make dining and hosting a pure joy! Connect with Ready—the fastest payment app for restaurants & bars.