PDM vs uv
PDM
pdm-project.org
uv
docs.astral.shSide by side
| Figure | PDM | uv |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 0 | 1 |
| Spec score · Package Managers | 7.8 (#44) | 8.9 (#4) |
| Spec score · Python Package Managers | 7.4 (#20) | 8.0 (#10) |
| Credential storage | When keyring is available and supported, PDM stores and retrieves package index and upload repository passwords through keyring. | uv currently stores credentials in a plaintext file; native system secret storage is available as an experimental preview feature. |
| Dependency resolution | PDM provides a dependency resolver described as simple and fast, particularly for large binary distributions. | Yes |
| Free plan | Yes | Yes |
| Lockfile support | Yes | Yes |
| Offline installation | Yes | Yes |
| Package formats | wheel,sdist | source distributions,wheels,requirements.txt,pylock.toml |
| Private registry auth | Yes | Yes |
| Purpose | PDM is a Python package and dependency manager that supports current PEP standards. | uv is an extremely fast Python package and project manager written in Rust. |
| Supported platforms | Windows,Linux,macOS,Python 3.10+ | macOS,Linux,Windows,CPython,PyPy,Pyodide,GraalPy |
| Workspace support | Yes | Yes |
Plans
In their own words
uv
uv is a Python package and project manager for Linux, macOS, and Windows. Written in Rust, it manages dependencies and environments, with lockfiles and workspaces, and can install, list, pin, or uninstall Python versions. It also runs scripts with dependencies and runs or installs command-line tools from Python packages. Its pip-compatible interface is intended to cover work done by tools such as pip, pip-tools, pipx, poetry, pyenv, twine, and virtualenv, though its commands do not exactly match those tools. The documentation describes uv as 10–100x faster than pip. It supports source distributions, wheels, requirements.txt, and pylock.toml, as well as offline installation and private registry authentication. For package selection, its default first-index strategy limits candidates to the first index where a package is found. Credentials are not stored in uv.lock, but uv currently stores them in a plaintext file; native system secret storage is an experimental preview. The free plan is free.