Communauté indépendante pour développeurs Unreal, support et échanges autour d'Unreal Engine.
unrealslackers.org
Alternatives to
Mattermost
Best alternatives to Mattermost in 2026
Mattermost is "Open-source team collaboration platform. [![Open-Source Software][OSS Icon]](https://github.com/mattermost/mattermost) ![Freeware][Freeware Icon]". If you are looking for an alternative to Mattermost in 2026 — whether for pricing, features or compatibility reasons — mySelectas has curated the 7 best options available. The most popular alternatives include: Slack, Microsoft Teams. All these solutions are listed in the Informatique category.
Quick comparison of Mattermost alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Développeurs | — | |
| 2 | Développeurs | — | |
| 3 | Développeurs | — | |
| 4 | Développeurs | — | |
| 5 | Professionnels | — | |
| 6 | Entreprises | Équipes | — | |
| 7 | Grand public | — |
#1
FAQ about Mattermost alternatives
- What is the best alternative to Mattermost in 2026?
- Based on our selection, Unrealslackers is the best alternative to Mattermost in 2026. Communauté indépendante pour développeurs Unreal, support et échanges autour d'Unreal Engine.. See our full ranking above to compare all options.
- Is Mattermost free?
- Mattermost is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Mattermost are there?
- mySelectas has listed 7 alternatives to Mattermost in the Informatique category. Our selection is updated regularly to include the best options available.