Astral
What it is
Astral builds open-source developer tools for Python, including Ruff, a linter, and uv, a package and project manager. Both are written in Rust, and Astral’s stated mission is to make the Python ecosystem more productive with high-performance tools. uv includes project management, a universal lockfile, script execution, Python version management, tool installation, workspaces, and a pip-compatible interface. Astral describes uv’s pip interface as providing a 10–100x speedup over pip. uv supports macOS, Linux, and Windows, and its documentation lists integrations with tools and services including Docker, Jupyter, GitHub Actions, GitLab CI/CD, PyTorch, FastAPI, and AWS Lambda. Astral says its tools are free and permissively licensed. It describes security controls for workflows and releases, including read-only default workflow permissions, full-length commit-SHA pinning, and release attestations. Documentation points users to its Discord community for support. The separate pyx registry provides optimized installs and other package features but is no longer accepting new signups. Astral has announced an agreement to join OpenAI as part of the Codex team.
For and against
For
- Ruff and uv are free and permissively licensed.
- uv includes project management, lockfiles, and script execution.
- Supports macOS, Linux, and Windows.
- Documentation lists integrations with CI and developer tools.
Against
- Support is directed through the Discord community.
- The pyx registry is no longer accepting new signups.
The verdict
Astral’s tools cover linting and several Python project and package management tasks. The separate pyx registry is unavailable to new signups, so its features are not an option for new users.
Who it suits
It suits Python developers looking for an open-source linter and package and project management tools across macOS, Linux, or Windows. Users seeking support are directed to Astral’s Discord community.
Plans and prices
Open-source Astral tools
Ruff, uv and ty · free forever · open source · permissively licensed
Read 1 Oct 2026 · astral.sh
On the record
- Integrations
- uv documentation lists integrations for Docker, Jupyter, marimo, GitHub Actions, GitLab CI/CD, pre-commit, PyTorch, FastAPI, Bazel, artifact registries, Renovate, Dependabot, AWS Lambda and Coiled.docs.astral.sh · read 1 Oct 2026
- Mission
- Astral builds high-performance developer tools to make the Python ecosystem more productive.astral.sh · read 1 Oct 2026
- Open source
- Astral says its tools are open source and permissively licensed.astral.sh · read 1 Oct 2026
- Ownership
- Astral announced an agreement to join OpenAI as part of the Codex team.astral.sh · read 1 Oct 2026
- pyx availability
- The pyx Python-native package registry is no longer accepting new signups.astral.sh · read 1 Oct 2026
- pyx features
- pyx provides optimized installs from PyPI, PyTorch and private sources, compliance filtering, uv integration, seamless authentication and GPU-aware package selection.astral.sh · read 1 Oct 2026
- Release security
- Astral says it uses Trusted Publishing, Sigstore attestations, immutable GitHub releases and checksum-embedded standalone installers where possible.astral.sh · read 1 Oct 2026
- Ruff
- Ruff is an extremely fast Python linter written in Rust.astral.sh · read 1 Oct 2026
- Security controls
- Astral says it forbids dangerous GitHub Actions triggers, uses full-length commit-SHA pinning, defaults workflow permissions to read-only and isolates deployment secrets.astral.sh · read 1 Oct 2026
- Support
- Astral's documentation directs users to join its Discord community for support.docs.astral.sh · read 1 Oct 2026
- Supported systems
- uv supports macOS, Linux and Windows.docs.astral.sh · read 1 Oct 2026
- uv
- uv is an extremely fast Python package and project manager written in Rust.docs.astral.sh · read 1 Oct 2026
- uv capabilities
- uv provides project management, a universal lockfile, script execution, Python version management, tool installation, workspaces and a pip-compatible interface.docs.astral.sh · read 1 Oct 2026
- uv speed
- The uv pip interface is described as providing a 10-100x speedup over pip.docs.astral.sh · read 1 Oct 2026
