head to head · open source
vscodium vs pyrefly
vscodium has 33,410 GitHub stars, 1,874 forks, 146 open issues and last shipped 4 days ago. pyrefly has 7,017 stars, 521 forks, 694 open issues and last shipped today. vscodium leads on adoption by 376% (33,410 vs 7,017 stars). vscodium is written in Shell under MIT; pyrefly is written in Rust under MIT. vscodium has attracted 6% as many forks as stars, pyrefly 7%. pyrefly was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ide), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| vscodium | pyrefly | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 7.0K |
| License | MIT | MIT |
| Written in | Shell | Rust |
| Last push | 2026-09-23 | 2026-09-27 |
| Forks | ⑂ 1.9K | ⑂ 521 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick vscodium if
- You weight community size — 33K stars and counting
- You want the MIT license terms
- Your stack matches Shell
- You value the larger contributor base for long-term maintenance
pick pyrefly if
- You want the pyrefly feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and pyrefly fits your workflow better
About vscodium
VSCodium is a repository of scripts that automatically build Microsoft's vscode repository into freely licensed binaries with a community driven default configuration, made for developers who want the Visual Studio Code editing experience without Microsoft branding, telemetry, or licensing encumbrance.
read the full vscodium overview →
About pyrefly
Pyrefly is a fast, MIT licensed type checker and language server for Python, written in Rust and distributed both as a command line tool and as extensions for editors such as VS Code, Neovim and Zed, aimed at Python developers and teams who want type checking and IDE features from a single tool.
read the full pyrefly overview →
More in Developer Tools
Related comparisons
More IDEs & Code Editors projects
Compare either of these against the rest of the IDEs & Code Editors field.
Frequently asked questions
Is vscodium or pyrefly more popular?
vscodium has 33,410 GitHub stars and pyrefly has 7,017. vscodium has the larger community by that measure.
Are vscodium and pyrefly free?
Both are open source. vscodium is licensed under MIT and pyrefly under MIT. Neither carries a licence fee.
What is the difference between vscodium and pyrefly?
vscodium is written in Shell and pyrefly in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, vscodium or pyrefly?
Choose vscodium if you want the larger community (33,410 stars) or its MIT licence terms. Choose pyrefly if its feature set, stack or MIT licence fits better. Both are self-hostable.