Head-to-head · Version Control Software
Mercurial vs Fossil
Mercurial leads on 2 checks, Fossil on 0, and 3 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreMercurial · 7.8/10
- Free planboth
- Most featuresMercurial · 3 of 4
Mercurial scores higher on our rubric for version control software: 7.8 against 7.7 out of 10; our editors rank them #12 and #13.
On large-file handling, Mercurial gives you Extension where Fossil offers None. Mercurial offers sparse checkout; Fossil doesn't. Mercurial offers nested repositories; Fossil doesn't.
Mercurial is the better fit for free distributed offline workflows. Fossil is the better fit for all-in-one self-hosted project repositories.
- Mercurial fits best
Free distributed offline workflows
- Fossil fits best
All-in-one self-hosted project repositories
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Side by side
| Feature | Mercurial 7.8/10 Visit ↗ | Fossil 7.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 7.8 | 7.7 |
| Ranking | #12 in Version Control Software | #13 in Version Control Software |
| Best for | Free distributed offline workflows | All-in-one self-hosted project repositories |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted, Desktop | Self-hosted, Desktop |
| Platforms | Windows, macOS, Linux | Web, Windows, macOS, Linux |
| Support | Community, Docs | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features Mercurial 3/4 · Fossil 1/4 | ||
| Self-hosted deployment | ✓ | ✓ |
| File locking | Not checked yet | — |
| Sparse checkout | ✓ (best) | — |
| Nested repositories | ✓ (best) | — |
| Specs | ||
| Versioning model | Distributed | Distributed |
| Desktop platforms | Windows, macOS, Linux | Linux, macOS, Windows |
| Large-file handling | Extension | None |
| Our review | ||
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| Our verdict | Mercurial is a free, open-source distributed version control system for developers and teams managing versioned files and software projects. Its distributed repository architecture gives each clone a complete project history, so users can… Read the review → |
Fossil is a free, open-source distributed version control system for software projects that need self-hosted repositories and more than source management alone. It combines versioning, branching, merging, and repository synchronization… Read the review → |
Strengths and trade-offs
Mercurial — where it wins
- Complete local history supports offline commits and history inspection
- Extensions add large-file handling, sparse checkout, and commands
- Supports Windows, GNU/Linux, macOS, and nested repositories
Where it doesn't
- Sparse checkout is documented as an experimental extension
- Large-file handling depends on the largefiles extension
- Web publishing requires the hgweb interface
Fossil — where it wins
- Distributed version control with branching, merging, and repository synchronization
- Built-in bug tracking, wiki, forum, chat, and email alerts
- Self-hosted repositories with HTTPS, SSH, and SQLite-backed storage
Where it doesn't
- No built-in file locking
- No sparse checkout
- GitHub integration is limited to mirroring
- Mercurial7.8/10 · Free plan
A free, open-source choice for local history, offline commits, and distributed collaboration.
Visit MercurialFull verdict → - Fossil7.7/10 · Free plan
A free, open-source choice for teams wanting self-hosted repositories and project tools.
Visit FossilFull verdict →
All version control software comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update