Fossil vs Jujutsu
A side-by-side comparison of two self-hosted developer tools & git options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Fossil | Jujutsu |
|---|---|---|
| Deploy effort | Read-the-docs project | Read-the-docs project |
| Category | Developer Tools & Git | Developer Tools & Git |
| License | BSD-2-Clause | Apache-2.0 |
| Language | C | Rust |
| Setup difficulty | Easy | Medium |
| Min. RAM | 64 MB | 128 MB |
| Deployment | binary, bare-metal | binary, source |
| GitHub stars | ★ 600 | ★ 31,719 |
| First released | 2006 | 2022 |
| Replaces | GitHub, Git | Git |
What are Fossil and Jujutsu?
Fossil
Fossil is a distributed version control system that bundles bug tracking, a wiki, forum, and web interface into a single self-contained executable. It powers the development of SQLite.
- Single-file executable
- Built-in wiki and forum
- Integrated bug tracking
- Self-contained web UI
Jujutsu
Jujutsu is a new version control system that is compatible with Git repositories while offering a simpler model based on changes and automatic conflict handling. It runs locally as a self-contained CLI.
- Git-compatible backend
- Change-based model
- Automatic rebasing
- First-class conflicts
Fossil vs Jujutsu: key differences
Fossil is written in C, while Jujutsu is built with Rust. Licensing differs — BSD-2-Clause for Fossil versus Apache-2.0 for Jujutsu. Fossil is the lighter option, starting around 64 MB of RAM against 128 MB for Jujutsu. Fossil is the more established project (first released 2006), while Jujutsu arrived in 2022. Jujutsu has the considerably larger community, at 31,719 GitHub stars versus 600.
Why pick each one
Choose Fossil if…
- Released under the BSD-2-Clause license
- Easy to set up — beginner-friendly
- Written in C
- Tiny footprint — runs in 64 MB RAM
Choose Jujutsu if…
- Git-compatible backend
- Painless conflict handling
- Undo any operation
Watch out for
- Workflow rethink required
- Ecosystem still maturing
Frequently asked questions
Is Fossil or Jujutsu better?
Neither is universally better. Jujutsu has the larger community, while Fossil is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Fossil and Jujutsu free and open-source?
Yes. Fossil is licensed under BSD-2-Clause and Jujutsu under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Fossil and Jujutsu with Docker?
Fossil: check the project docs for container support. Jujutsu: check the project docs for container support.
Which is lighter on resources, Fossil or Jujutsu?
Fossil has the smaller minimum footprint at 64 MB of RAM, compared to about 128 MB for Jujutsu. Real-world usage depends on library size, user count, and enabled features.