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Mattermost Alternatives
Similar projects and alternatives to Mattermost
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WordPress
WordPress, Git-ified. This repository is just a mirror of the WordPress subversion repository. Please do not send pull requests. Submit pull requests to https://github.com/WordPress/wordpress-develop and patches to https://core.trac.wordpress.org/ instead.
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build complex JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.
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Grafana
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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n8n
Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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cli
Official Command Line Interface for the IPinfo API (IP geolocation and other types of IP data) (by ipinfo)
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zotero
Zotero is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share your research sources.
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matrix-docker-ansible-deploy
🐳 Matrix (An open network for secure, decentralized communication) server setup using Ansible and Docker
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Matomo
Empowering People Ethically 🚀 — Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving you complete control and built-in privacy. Easily collect, visualise, and analyse data from websites & apps. Star us on GitHub ⭐️ – Pull Requests welcome!
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Zulip
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
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PostHog
🦔 PostHog provides open-source web & product analytics, session recording, feature flagging and A/B testing that you can self-host. Get started - free.
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Wekan
The Open Source kanban (built with Meteor). Keep variable/table/field names camelCase. For translations, only add Pull Request changes to wekan/i18n/en.i18n.json , other translations are done at https://app.transifex.com/wekan/wekan only.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better Mattermost alternative or higher similarity.
Mattermost discussion
Mattermost reviews and mentions
Posts with mentions or reviews of Mattermost.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-05-04.
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Indie Hacking with Open Source Tools: Innovating on a Budget
Indie hackers also leverage collaboration tools like Nextcloud for file sharing and team projects, and Mattermost or Rocket.Chat as self-hosted alternatives to Slack. These tools empower remote teams and foster efficient communication across diverse development projects.
Communication tools such as Mattermost and Rocket.Chat support team collaboration.
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Revolt: Open-Source Alternative to Discord
Golang would have encouraged a lot more contributions, e.g. https://github.com/mattermost/mattermost (I am not affiliated with them).
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Indie Hacking Success Stories with Open Source Licenses
Mattermost: For teams seeking a secure, self-hosted communication solution, Mattermost stands as a beacon of open source excellence. With a foundation built on the MIT License, Mattermost caters to organizations that prioritize data security and customization. Its growth not only reflects a need for privacy in digital communication but also showcases how open source frameworks support tailored solutions.
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Reviving An Outdated Project
[GH-29548] Avoid SELECT * in `tokens_store.go` #29558
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Campsite/Campsite: The Campsite Monorepo
Is there an 'open source Slack' type thing anywhere?
This is the closest I've found- https://mattermost.com/
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My Goals Working On Open Source
So far I think I've been doing pretty well. While the scope of my contributions has varied, I've been able to work on a few projects - some larger than others, but all of them being software that people actually use (as opposed to someone's side project): cve-bin-tool, libplanet, ByteChef, Ghostfolio, and Mattermost.
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Doing More Open Source Stuff: Making Up For Lost Time
Add timestamp to pasted image filenames to differentiate them #29524
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From Idea to Startup: How Open Source Tools Can Help You with Setting up Your Business
Star Mattermost⭐
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Contributing to Mattermost - I said ":D", not "😄"
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React and runs as a single Linux binary with MySQL or PostgreSQL. A new compiled version is released under an MIT license every month on the 16th.
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A note from our sponsor - SaaSHub
www.saashub.com | 23 May 2025
Stats
Basic Mattermost repo stats
166
32,590
10.0
1 day ago
mattermost/mattermost is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.
Mattermost is marked as "self-hosted". This means that it can be used as a standalone application on its own.
The primary programming language of Mattermost is TypeScript.
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