Shards
6.3#64 in package managersLinuxmacOSWindows
VisitShards vs uv
What both publish
| Fact | Shards | uv |
|---|---|---|
| Dependency resolution | Yes | Yes |
| Distribution | Shards is usually distributed with Crystal, and a separate shards package may be available for a user's system. | uv can be installed with a standalone installer, PyPI, Homebrew, MacPorts, WinGet, Scoop, Docker, GitHub Releases, or Cargo. |
| Free plan | Yes | Yes |
| Intended users | The project README describes its use for Crystal applications and libraries. | Astral says it builds high-performance developer tools for the Python ecosystem to help developers ship software faster. |
| Lockfile support | Yes | Yes |
| Package formats | Crystal shards defined in shard.yml | source distributions,wheels,requirements.txt,pylock.toml |
| Purpose | Shards is a dependency manager for the Crystal language. | uv is an extremely fast Python package and project manager written in Rust. |
| Supported platforms | Linux,macOS,Windows | macOS,Linux,Windows,CPython,PyPy,Pyodide,GraalPy |
Shards plans
No prices published.
uv plans
- uvFree
Pick Shards if…
You want what its maker publishes above — check its page for the details.
Pick uv if…
uv suits Python developers looking to manage project environments and dependencies, install Python versions, or run scripts and command-line tools. Its pip-compatible interface may appeal to those consolidating several Python tool workflows.