Open-source, on-prem Slack-alternative. It can be integrated with Gitlab.

Mattermost alternatives and similar software solutions

Based on the "Custom" category

• Rocket.Chat

  9.9 9.7 L3 Mattermost VS Rocket.Chat

  Teamchat solution similar to Gitter.im or Slack.

• Zulip

  9.7 9.9 L2 Mattermost VS Zulip

  Zulip is a powerful, open source group chat application.

• ZeroNet

  9.7 9.6 Mattermost VS ZeroNet

  Open, free, and uncensorable websites, using Bitcoin cryptography and BitTorrent network.

• Jitsi Meet

  9.7 9.7 L4 Mattermost VS Jitsi Meet

  Jitsi Meet is an OpenSource

• Tox

  9.4 0.0 L3 Mattermost VS Tox

  A distributed, secure messenger with audio and video chat capabilities.

• Lets-Chat

  9.4 0.3 L5 Mattermost VS Lets-Chat

  A self hosted chat suite written in Node.

• Synapse

  9.1 9.9 L3 Mattermost VS Synapse

  A server for Matrix, an open standard for decentralized persistent communication.

• Vector

  8.8 9.8 L4 Mattermost VS Vector

  A glossy Matrix web client with an emphasis on performance and usability.

• Centrifugo

  8.5 8.3 Mattermost VS Centrifugo

  Language-agnostic real-time messaging

• Mumble

  8.4 9.4 L1 Mattermost VS Mumble

  Low-latency, high quality voice/text chat software.

• Actor

  8.4 0.0 L2 Mattermost VS Actor

  Actor is an open source fast open source messaging platform with rich mobile and web clients.

• Friends

  8.0 0.0 L4 Mattermost VS Friends

  P2P chat powered by the web.

• Jitsi Video Bridge

  7.9 9.1 L1 Mattermost VS Jitsi Video Bridge

  WebRTC compatible Selective Forwarding Unit

• Kandan

  7.9 0.0 Mattermost VS Kandan

  Kandan is an Open Source Alternative to HipChat.

• hack.chat

  7.6 0.0 L3 Mattermost VS hack.chat

  A minimal, distraction-free chat application.

• TextBelt

  7.5 2.1 L3 Mattermost VS TextBelt

  An outgoing SMS API that uses carrier-specific gateways to deliver your text messages for free, and without ads.

• Live Helper Chat

  7.4 9.6 L3 Mattermost VS Live Helper Chat

  Live Support chat for your website.

• Hubl.in

  7.2 2.1 L3 Mattermost VS Hubl.in

  WebRTC powered video conference, chat and collaborative editor.

• Spreed

  6.6 0.0 Mattermost VS Spreed

  WebRTC audio/video calls, conferencing server, and web client.

• RetroShare

  6.6 9.7 L1 Mattermost VS RetroShare

  Secured and decentralized communication system. Offers decentralized chat, forums, messaging, file transfer.

• Node-Chat

  6.5 1.1 L2 Mattermost VS Node-Chat

  A not-so-basic open-source chat with admin features.

• Broid

  5.7 0.0 Mattermost VS Broid

  Broid enables rich conversations on all messaging channels within a single schema integration using W3C standards.

• Freenet

  5.7 7.4 L1 Mattermost VS Freenet

  Anonymously share files, browse and publish "freesites"

• Scrollback

  5.6 0.0 L3 Mattermost VS Scrollback

  Embeddable cross-platform chat for communities.

• Niltalk

  5.6 5.8 Mattermost VS Niltalk

  A simple, private, persistence-free web based multi-room chat server + client.

• Hawkpost

  5.5 3.3 L5 Mattermost VS Hawkpost

  HawkPost is a web app that lets you create unique links that you can share with a person that desires to send you important information but doesn't know how to encrypt it. The message is encrypted in their browser and sent to your email address.

• Mibew

  5.5 4.3 Mattermost VS Mibew

  Mibew Messenger is an open-source live support application written in PHP and MySQL. It enables one-on-one chat assistance in real-time directly from your website.

• MiAOU

  4.5 7.6 L3 Mattermost VS MiAOU

  A multi-room persistent chat server.

• Spectrum 2

  4.4 8.3 Mattermost VS Spectrum 2

  Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks.

• Tuber

  4.4 1.6 L3 Mattermost VS Tuber

  Peer-to-peer video chat that works.

• Pushjet

  3.9 0.0 L5 Mattermost VS Pushjet

  A self hosted push notification service built with a simple API making sending notifications easy.

• Rallly

  3.8 0.0 Mattermost VS Rallly

  Rallly is a free collaborative scheduling service.

• Cherry

  3.7 0.0 Mattermost VS Cherry

  A tiny webchat server.

• Ring

  3.3 6.2 L3 Mattermost VS Ring

  Free software for universal communication which respects freedoms and privacy of its users.

• Matrix Console Web

  2.7 0.0 L3 Mattermost VS Matrix Console Web

  A web client meant to be a showcase of Matrix capabilities, and reference implementation of the Matrix standard.

• Syndie

  2.3 0.0 L1 Mattermost VS Syndie

  Syndie is a libre system for operating distributed forums.

• GNUNet

  2.0 9.8 L2 Mattermost VS GNUNet

  Free software framework for decentralized, peer-to-peer networking.

• KChat

  1.8 4.0 Mattermost VS KChat

  PHP Based Live Chat Aplication.

• Mumblecop

  1.1 - Mattermost VS Mumblecop

  Stream audio from youtube and soundcloud, simulate dice rolls, or write your own commands with a simple plugin format.

* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest. Visit our partner's website for more details.

Do you think we are missing an alternative of Mattermost or a related project?

Popular Comparisons

• Mattermost
  vs
  Jitsi Meet
• Mattermost
  vs
  Rocket.Chat
• Mattermost
  vs
  Zulip
• Mattermost
  vs
  Mumble
• Mattermost
  vs
  Vector

SaaSHub - Software Alternatives and Reviews View more from us