5 of the best mattermost alternatives for general-purpose use across work and personal projects. Includes free, paid, and open-source options.
open-webui is a strong mattermost alternative in the default category. Best for: general-purpose use across work and personal projects. Visit open-webui →
| Category | default |
|---|---|
| Stars / adoption | 142,118 |
| Best for | general-purpose use across work and personal projects |
claude-code is a strong mattermost alternative in the default category. Best for: general-purpose use across work and personal projects. Visit claude-code →
| Category | default |
|---|---|
| Stars / adoption | 133,168 |
| Best for | general-purpose use across work and personal projects |
excalidraw is a strong mattermost alternative in the default category. Best for: general-purpose use across work and personal projects. Visit excalidraw →
| Category | default |
|---|---|
| Stars / adoption | 125,579 |
| Best for | general-purpose use across work and personal projects |
ComfyUI is a strong mattermost alternative in the default category. Best for: general-purpose use across work and personal projects. Visit ComfyUI →
| Category | default |
|---|---|
| Stars / adoption | 117,413 |
| Best for | general-purpose use across work and personal projects |
browser-use is a strong mattermost alternative in the default category. Best for: general-purpose use across work and personal projects. Visit browser-use →
| Category | default |
|---|---|
| Stars / adoption | 99,424 |
| Best for | general-purpose use across work and personal projects |
mattermost is a strong choice when you're already in the default ecosystem, or when its specific strengths (brainstorming and drafting) match your needs. If you're hitting limits, the alternatives above are the next best options.