GitLab vs Mattermost: Complete Comparison (2026)
An in-depth comparison of GitLab and Mattermost to help you choose the right tool for your business.
Last updated: November 2026
GitLab
6.8/10
GitLab is a DevSecOps platform that combines source code, CI/CD, security, and agile planning with issues, boards, and epics for software teams.
Mattermost
6.7/10
Self-hostable, open-source team messaging and workflow platform with playbooks, kanban boards and AI agents, built for security-conscious and regulated organizations.
Feature-by-Feature Comparison
| Feature | | |
|---|---|---|
| Scores | ||
| Overall Rating | 6.8/10 | 6.7/10 |
| Integration | 8/10 | 7/10 |
| Analytics | 7/10 | 3/10 |
| Customization | 8/10 | 8/10 |
| Ease of Use | 5/10 | 6/10 |
| Support | 6/10 | 6/10 |
| Cost | 4/10 | 5/10 |
| Scalability | 9/10 | 9/10 |
| Security | 9/10 | 10/10 |
| Pricing | ||
| Free plan | Yes | Yes |
| Cheapest paid plan | $29/user/mo Premium | $10/user/mo Professional |
| Estimated cost for 10 users | Contact for pricing | Free Team Edition |
| Features | ||
| App integrations | ||
| Collaboration tools | ||
| Docs | Not listed | |
| File sharing | ||
| Kanban boards | ||
| Knowledge base | Not listed | |
| Reporting | Not listed | |
| Task lists | ||
| Task management | Not listed | |
| Time tracking | Not listed | |
| Timeline view | Not listed | |
| Workflow automation | ||
| Team messaging | Not listed | |
| Client collaboration | Not listed | |
GitLab vs Mattermost cost by team size
GitLab and Mattermost cost the same up to 5 users.
| Team size | GitLab | Mattermost |
|---|---|---|
| 1 user | FreeFree | FreeTeam Edition |
| 5 users | FreeFree | FreeTeam Edition |
| 10 users | Contact for pricing | FreeTeam Edition |
| 25 users | Contact for pricing | FreeTeam Edition |
| 50 users | Contact for pricing | FreeTeam Edition |
The plan that fits each team size, billed monthly, before add-ons and usage charges. Each cost opens that tool's pricing calculator for the team size.
Which One Should You Choose?
Why choose GitLab
- Higher Analytics score (7/10 vs 3/10)
- Higher Integration score (8/10 vs 7/10)
- Better fit for freelancers (5/10 vs 2/10)
- Better fit for startups (7/10 vs 5/10)
Why choose Mattermost
- Higher Ease of Use score (6/10 vs 5/10)
- Higher Cost score (5/10 vs 4/10)
- Better fit for government (9/10 vs 6/10)
Pros & Cons
GitLab
Pros
- Planning, code, CI/CD, and security live in one tool, so issues link directly to merge requests and pipelines.
- Time tracking with estimates and logged time is included on every tier, including Free.
- It can be self-managed or run as single-tenant Dedicated, which suits regulated enterprises.
- Reviewers on G2 and Capterra rate it about 4.5 out of 5 and praise its robust CI/CD and version control.
Cons
- Users who don't write code face a lot of complexity, and reviewers complain about frequent interface changes.
- Ultimate pricing isn't public, and Premium is listed only with annual billing.
- OKRs require Ultimate and are still not ready for production; the global time tracking report is also experimental.
- Users have long complained that epics exist only at the group level.
Mattermost
Pros
- Can be fully self-hosted or air-gapped, which suits defense, government and regulated industries
- Enterprise tiers include strong compliance tooling: FIPS 140-3 builds, legal hold, compliance export and granular RBAC
- Playbooks give incident and DevOps teams repeatable checklists with automated triggers inside chat
- Built-in Jira, GitHub and GitLab integrations, plus an open API for custom bots
- Open-source core under MIT and AGPL licenses avoids full vendor lock-in
Cons
- The Boards kanban plugin is in maintenance mode and has been removed from the in-product marketplace
- Since v11 the free Entry plan shows only the last 10,000 messages and Team Edition is capped at 250 users, which drew community criticism
- The vendor publishes no prices, licenses are annual prepaid only, and every server needs its own license
- No Gantt charts, time tracking or project reporting, so it cannot replace a dedicated project management tool
- Self-hosting requires admin time and server upkeep
Not sold on either?
Frequently Asked Questions
GitLab scores higher on our AI Software criteria: 6.8/10 against 6.7/10 for Mattermost. The largest gap is in Analytics: 7/10 for GitLab and 3/10 for Mattermost.
Yes, both GitLab and Mattermost have a free plan.
GitLab is the better fit for freelancers: we rate it 5/10 for them, against 2/10 for Mattermost.
