head to head · open source
Mattermost vs Wire
Mattermost has 39,510 GitHub stars, 9,087 forks, 1,012 open issues and last shipped yesterday. Wire has 2,557 stars, 180 forks, 173 open issues and last shipped 10 months ago. Mattermost leads on adoption by 1,445% (39,510 vs 2,557 stars). Mattermost is written in TypeScript under a custom or non-standard licence; Wire is written in various languages under GPL-3.0. Mattermost has attracted 23% as many forks as stars, Wire 7%. Mattermost was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Mattermost | Wire | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 2.6K |
| License | Custom / other | GPL-3.0 |
| Written in | TypeScript | — |
| Last push | 2026-11-02 | 2026-01-05 |
| Forks | ⑂ 9.1K | ⑂ 180 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Mattermost if
- You weight community size — 40K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick Wire if
- You want the Wire feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- You evaluated both and Wire fits your workflow better
About Mattermost
Mattermost is an open core, self hosted collaboration platform that offers chat, workflow automation, voice calling, screen sharing, and AI integration. This repo is the primary source for core development on the Mattermost platform; it's written in Go and React, runs as a single Linux binary, and relies on PostgreSQL. A new compiled version is released under an MIT license every month on the 16th. Deploy Mattermost on premises, or try it for free in the cloud. Learn more about the following use cases with Mattermost: DevSecOps Incident Resolution IT Service Desk Other useful resources: Download and Install…
read the full Mattermost overview →
About Wire
Wire™ Open source The privacy page and the privacy and security whitepapers explain the details of the encryption algorithms and protocols used. For licensing information, see the attached LICENSE file and the list of third party licenses at wire.com. If you compile the open source software that we make available from time to time to develop your own mobile, desktop or web application, and cause that application to connect to our servers for any purposes, we refer to that resulting application as an “Open Source App”. All Open Source Apps are subject to, and may only be used and/or commercialized in accordance…
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Frequently asked questions
Is Mattermost or Wire more popular?
Mattermost has 39,510 GitHub stars and Wire has 2,557. Mattermost has the larger community by that measure.
Are Mattermost and Wire free?
Both are open source. Mattermost has no licence declared in this registry, and Wire is licensed under GPL-3.0. Both are free to self-host.
What is the difference between Mattermost and Wire?
Mattermost is written in TypeScript and Wire in various languages. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Mattermost or Wire?
Choose Mattermost if you want the larger community (39,510 stars) or its Custom / other licence terms. Choose Wire if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.