Open Source Alternatives LogoOpen Source Alternatives
AlternativesBlogAdvertise
Open Source Alternatives LogoOpen Source Alternatives

Stay Updated

Subscribe to our newsletter for the latest news and updates about Alternatives

Open Source Alternatives LogoOpen Source Alternatives

Handpicked Open Source Alternatives to Paid Softwares

Product
  • Search
  • Categories
  • Tag
  • Sign In
Resources
  • Blog
  • Collection
  • Submit
  • Advertise your tool
Company
  • Privacy Policy
  • Terms of Service
  • Refund Policy
  • Sitemap
Copyright © 2026 All Rights Reserved.
Home/Categories/Communication & Collaboration/Matrix
icon of Matrix

Matrix

Open source alternative to Slack, Microsoft Teams and Zoom Workplace

An open protocol for secure, decentralized communication, enabling real-time messaging, VoIP, and data transfer across platforms.

12.1K stars

Repository

Stars
12.1K
Forks
2.1K
License
Apache-2.0
Latest
v1.98.0
Last commit
765 days ago
Last verified
May 13, 2026
Repo
matrix-org/synapse ↗
Python
Apache-2.0
Visit websiteGitHub repo
image of Matrix
Contents
  1. 01Who Matrix is for
  2. 02The problem it solves
  3. 03How it solves it
  4. 04Strengths and trade-offs
  5. 05Tech stack
  6. 06FAQ
  7. 07Similar open-source tools
TL;DR

Matrix is an open protocol for secure, federated communication across homeservers. It replaces single-vendor chat networks when communities and organizations need interoperable rooms, bridges, end-to-end encryption support, and Apache-2.0 server implementations such as Synapse.Apache-2.0 · Python · 12.1K stars

who it's for

Who Matrix is for#

Communities needing open chat federation

Matrix fits communities that need communication across independently hosted servers.

Skip if:

Skip it if a single closed workspace already covers all users and compliance requirements.

Organizations with sovereignty requirements

Matrix helps organizations keep account and server control while still collaborating externally.

Skip if:

Use a managed workspace if administration and moderation capacity are limited.

the problem
tech stack · detected from GitHub

What it's built on#

Languages
PythonRust
Databases
PostgreSQL
frequently asked

FAQ#

Is Matrix a chat app?
Can Matrix be self-hosted?
What license does Synapse use?
also worth a look

Similar open-source tools#

Rocket.Chat

Rocket.Chat

Self-hosted team chat with voice, video, and omnichannel support

45.3KTypeScriptMIT

Additional details

Language
Python
Open issues
1,524
Contributors
547
First release
2014

Categories

Communication & CollaborationAPIs & IntegrationSecurity & Monitoring

Tags

ChatSecurityAPI InfrastructureSelf HostedDeveloper ToolsWeb3

The problem it solves#

how Matrix solves it

How it solves it#

Federated homeservers

Matrix rooms can span homeservers, allowing different organizations to host their own accounts while still communicating in shared spaces.

End-to-end encryption support

Matrix supports end-to-end encrypted communication for rooms and direct messages, depending on client and room configuration.

Bridging model

Matrix has a bridging ecosystem for connecting other chat networks. This matters for communities that cannot move every participant at once.

strengths · trade-offs

Strengths and trade-offs#

Strengths

  • Protocol control over workspace lock-inMatrix lets organizations choose servers and clients around a shared protocol instead of committing all communication to one workspace vendor.
  • Synapse as a mature reference serverThe Synapse homeserver is Apache-2.0 licensed and widely used, giving teams a concrete server path for Matrix deployments.

Trade-offs

  • -Federation increases admin complexityHomeserver operators need to handle moderation, abuse, identity, backups, federation rules, and upgrades.
  • -Client experience variesMatrix is a protocol ecosystem. User experience depends on the chosen client, homeserver, bridges, and encryption setup.
Prose

Prose

Decentralized open source workplace with chat and docs

36RustMPL-2.0
Adapt

Adapt

Lightweight self-hosted messaging platform for teams

1AGPL-3.0
SpacebarChat

SpacebarChat

Free open source Discord reimplementation with full API parity

2.1KTypeScriptAGPL-3.0
Converse.js

Converse.js

Self-hosted web-based XMPP chat client for any server

3.3KJavaScriptMPL-2.0
Revolt

Revolt

Self-hosted open source Discord alternative with servers

2.3K

Matrix is a protocol and network model. Users access it through clients such as Element and servers such as Synapse.

Yes. Organizations can run a Matrix homeserver such as Synapse.

Closed chat systems make every organization join the same vendor-controlled workspace if they want durable communication. That model breaks down for open communities, public-sector collaboration, and multi-organization groups that need their own identity, moderation, and hosting choices.

The missing layer is protocol ownership. Teams need chat that can cross server boundaries without giving one company control over the whole network.

Synapse, the Matrix homeserver listed here, is Apache-2.0 licensed.