Mattermost
Live Mature ModerateReplaces Slack, Microsoft Teams
$720
Bounty Value
$180
Saves per Year
4
Years Tracked
Communication
Category
Enterprise vs. Open Alternative
Cost comparison per seat per year
| Tool | Cost/seat/yr | 10 seats | 50 seats | Savings |
|---|---|---|---|---|
| Slack Enterprise | $180 | $1,800 | $9,000 | 100% |
| Microsoft Teams (E3) | $264 | $2,640 | $13,200 | 100% |
| Discord Nitro (per user) | $120 | $1,200 | $6,000 | 100% |
| Mattermost | $0 | $0 | $0 | Free |
Self-hosting infrastructure costs not included. Typically $2-10/month per service.
Open-source Slack alternative built for developers. Self-hosted team messaging with enterprise-grade security and compliance.
Why it works
- Slack-compatible: Import channels, users, and history from Slack
- DevOps integrations: Native integrations with Jira, GitHub, GitLab, Jupyter
- Enterprise security: SSO, MFA, data retention policies, audit logs
- High-performance: Handles thousands of concurrent users
- Extensible: Plugin system, webhook APIs, custom slash commands
What you lose
- Slack’s massive third-party app marketplace
- Some of the polish and UI refinements
- Huddles / native voice/video (requires separate integration)
chat messaging devops enterprise