Alternatives to Gitter for all platforms with any license

Slack

Slack brings all your communication together in one place. It's real-time messaging, archiving and search for modern teams.

Freemium Mac Windows Linux Web Android ... iPhone Windows S BSD Apple Watch Electron / Atom Shell
Group chat Group collaboration Multi Channel Team Collaboration ... Extensible by Plugins/Extensions App integration Channel manager IFTTT integration Support for @mentions Onboarding Out Of The Box Reactions Real time collaboration Share files Team work Voice Call Add a feature

599 Like
Riot.im

Riot (formerly Vector) is an opensource interoperable app running on Web, iOS and Android. It is built around chat rooms, both public and private and provides messaging...

Free Open Source Mac Windows Linux Web Android ... iPhone iPad Self-Hosted Chrome Safari F-Droid Firefox
End-to-end encryption Decentralized Group chat Matrix.org protocol ... Video calling Voice Call Built-in File transfer Community based Custom widgets DRM Free Encrypted chat GitHub integration Group collaboration Send files Server Moderation Server side history Slack integration Team Collaboration Video calling Add a feature

165 Like
Matrix.org

Matrix is an open standard for decentralized persistent communication over IP. It can be used for decentralised group chat, WebRTC signaling, IoT-data transfer, ...

Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted WebRTC Python JavaScript Go (Programming Language) Java Perl
End-to-end encryption Decentralized Chat Bot Distributed ... Encrypted chat GNU/linux-libre Group chat Real time collaboration Server side history Team Collaboration WebRTC Add a feature

82 Like
Glip

Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your conversations are, so you always know...

Freemium Mac OS X Windows Web Android iPhone ... Android Tablet iPad
Social feed Bitbucket Integration Box.com integration Built-in File Manager ... Calendar view CRM Dropbox integration GitHub integration Google Drive integration Group chat Group collaboration Mailchimp integration Meeting notes Onedrive integration Real time collaboration Recurring tasks Share your screen Shared calendars Sync Calendars Team Collaboration Team work Trello integration Zapier integration Zendesk integration Add a feature

154 Like
Zulip

Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations....

Free Open Source Mac Windows Linux Web Android ... iPhone Android Tablet BSD Self-Hosted
Threaded Conversations Group collaboration Chat Bot Community based ... GitHub integration Group chat Integrated File Sharing MarkDown support Team Collaboration Add a feature

117 Like
HipChat

HipChat is an instant messaging service designed for companies and teams. It has persistent chat rooms, one-to-one chat, searchable chat history, file sharing via drag...

Freemium Mac Windows Linux Web Android ... iPhone Android Tablet iPad Self-Hosted Apple Watch
Team Collaboration Integrated File Sharing Share your screen Add a feature

73 Like
- Discontinued https://alternativeto.net/software/slack/ is acquiring Hipchat and https://alternativeto.net/software/stride-by-atlassian/ from Atlassian. the services will be discontinued after February 15th, 2019. https://www.atlassian.com/partnerships/slack
Hack Chat

hack.chat is a minimal, distraction-free chat application. Channels are created and joined by going to https://hack.chat/?your-channel . There are no channel lists, so a...

Free Open Source Web Android Self-Hosted
Distraction-free UI Add a feature

20 Like
Dialog Messenger

Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for...

Free Personal Mac OS X Windows Linux Web Android ... iPhone Self-Hosted
Encrypted chat Privacy protection Reactions Real time collaboration ... Team work Text chat Add a feature

24 Like
Campfire

Campfire is a simple web-based real-time group chat tool for business. It makes real-time communication with 2-60 people as simple as visiting a web page. It’s...

Commercial Web iPhone
Group chat Integrated File Sharing Team Collaboration Voice Call Add a feature

16 Like
MongooseIM platform

The massively-scalable XMPPJabber mobile messaging platform, for mobile and web, by Erlang Solutions.

Free Open Source Mac Linux Amazon Web Services Microsoft Azure
Voice Call Add a feature

10 Like
TribeScale

TribeScale is a startup that aims to enhance teamwork in companies through the improvement of communication, coordination, and the pace on the basis of targets set.

Free Mac OS X Windows Web Android iPhone ... iPad Self-Hosted
Goal setting Goal Tracking Group chat Group collaboration ... Real time collaboration Team Collaboration Team work Add a feature

24 Like
Kandan

Open Source private chat server. Your own private Chat server in minutes, plus additional features. No credit card required. A fast, secure and stable solution based on...

Free Open Source Web Self-Hosted Ruby on Rails
No features added Add a feature

9 Like
Spectrum Chat

A newly open sourced self hosted Slack like alternative for building persistent chat communities.

Freemium $ $ $ Open Source Web Self-Hosted
Group chat Group collaboration Support for @mentions Real time collaboration ... Team Collaboration Team work Add a feature

4 Like
Stride

Stride is the complete team communication solution with group messaging, video meetings, and built-in collaboration tools.

Freemium $ $ $ iPhone iPad
App integration Group chat Group collaboration Video calling ... Voice Call Add a feature

3 Like
- Discontinued https://alternativeto.net/software/slack/ is acquiring https://alternativeto.net/software/hipchat/ and Stride from Atlassian. The services will be discontinued after February 15th, 2019. https://www.atlassian.com/partnerships/slack
Wiggio

Wiggio is an online toolkit that makes it easy to work in groups. With Wiggio you can: - keep shared calendar (with text message reminders) - poll group in...

Commercial Web
Group collaboration Real time collaboration Shared calendars Add a feature

7 Like
- Discontinued Wiggio has been officially closed