Shards vs uv
| Shards | uv | |
|---|---|---|
| Free plan | No | Yes |
| Free trial | No | No |
| Paid from | — | Free |
| Open source | No | No |
| Platforms | Windows, macOS, Linux | Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Package formats | Crystal shards defined with shard.yml | source distributions, wheels, requirements.txt, pylock.toml |
| Supported platforms | Linux, macOS, Windows | macOS, Linux, Windows, CPython, PyPy, Pyodide, GraalPy |
| Dependency resolution | Yes | Yes |
| Lockfile support | Yes | Yes |
| Workspace support | — | Yes |
| Private registry auth | — | Yes |
| Offline installation | — | Yes |
Both are listed in Best Package Managers. On Freedom251, uv scores higher on our published basis.