PDM
PDM: A free, open-source choice for structured Python projects and monorepos. Ranked #12 of 92 in Package Managers by our editors (8.1/10); pricing: Free plan; best for python monorepos and modern packaging.
At a glance
- Editor score8.1 / 10
- PricingFree plan
- Best forPython monorepos and modern packaging
- Free planYes
- Paid fromFree
- Lockfile supportYes
- Facts checked21 Sep 2026
Where it wins
- Lockfiles support reproducible dependency synchronization
- PEP 517 and PEP 621 support modern Python packaging
- Private indexes, caching, and publishing support broader workflows
Where it doesn't
- Workspace management is documented as experimental
- Focused on Python package and dependency management
- Virtual environments and indexes require project configuration
Our verdict on PDM
PDM is an open-source Python package and dependency manager for developers building applications and libraries. It is designed for projects that need dependency resolution, reproducible environments, modern project metadata, and package building or publishing. Its support for Windows, Linux, and macOS makes it suitable for teams working across those platforms, while workspace management targets Python monorepos.
The published capabilities cover the main stages of a Python packaging workflow. PDM resolves dependencies and synchronizes them through lockfiles, manages virtual environments, and supports both PEP 517 build backends and PEP 621 project metadata. It can build and publish wheel and source-distribution packages, connect to PyPI, and configure private Python package indexes with authentication. A centralized installation cache and offline installation support also fit projects that need repeatable dependency handling across environments. These features make PDM a strong fit for teams standardizing modern Python packaging rather than maintaining separate tools for each stage.
PDM is available as free, open-source software under the MIT license, with support across Windows, Linux, and macOS. Its workspace feature is documented as experimental, so teams choosing it for monorepo management should account for that status when evaluating their workflow. PDM should appeal to Python developers who value PEP-aligned packaging, lockfile synchronization, private registry access, and publishing from one tool. Teams seeking a package manager for other programming ecosystems, or those that require workspace functionality with a non-experimental status, should consider an alternative focused on those needs.
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PDM pricing
PDM fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Package formats | wheel, sdist |
| Supported platforms | Windows, Linux, macOS, Python 3.10+ |
| Dependency resolution | Yes |
| Lockfile support | Yes |
| Workspace support | Yes |
| Private registry auth | Yes |
| Offline installation | Yes |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan |
| Website | pdm-project.org |
| Facts checked | 21 Sep 2026 |
Alternatives to PDM
- npmA complete JavaScript package workflow with public access free and private packages at $7/month.9.4
- uvA broad, open-source toolkit for managing modern Python projects across three platforms.9.2
- YarnA capable JavaScript package manager for consistent installs and monorepositories.9.0
Also Ranked In
PDM is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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