Is uv free to use? What license does it have?

uv is open source under the Apache-2.0 license. Check the license terms before using it in commercial products.

Is uv still maintained?

Actively maintained. The last commit to uv was on Oct 24, 2026.

What can I use uv for?

Starting a new Python project and managing its dependencies and lockfile. Running standalone Python scripts that declare their own dependencies. Replacing a mix of pyenv, virtualenv and pip in CI or local setups. Speeding up pip installs in existing projects through the pip-compatible interface.

Install uv from PyPI with pip: pip install uv Create a new project: uv init example Add a dependency to the project: uv add ruff Run a command inside the project environment: uv run ruff check

The source code and installation instructions are on GitHub: https://github.com/astral-sh/uv

astral-sh/uv

An extremely fast Python package and project manager written in Rust, replacing pip, virtualenv, pyenv, pipx and more.

Open-source alternative to:pip Poetry

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Stars: 91,117
Forks: 3,689
Open issues: 2,984
Last commit: 59 minutes ago

What is it?

uv is a command-line tool for managing Python packages, projects, virtual environments and Python installations. It covers the jobs of pip, pip-tools, pipx, poetry, pyenv, twine and virtualenv in a single binary, so developers can install interpreters, resolve dependencies and run tools from one CLI.

For projects, uv creates a lockfile that works across platforms, supports workspaces, and can run single-file scripts with inline dependency metadata in an isolated environment. It can also run or install command-line tools published as Python packages, similar to pipx, and manages multiple Python versions including PyPy.

uv provides a pip-compatible interface (uv pip) so existing workflows can move over without changes. It uses a global cache to deduplicate dependencies across environments. It runs on macOS, Linux and Windows, and can be installed via a standalone script or PyPI.

Key features

01Replaces pip, pip-tools, pipx, poetry, pyenv, twine and virtualenv in one tool.
02Manages projects with lockfiles and Cargo-style workspaces.
03Runs single-file scripts with inline dependency declarations in isolated environments.
04Installs and switches between Python versions, including PyPy.
05Runs and installs command-line tools published as Python packages.
06Offers a pip-compatible interface for existing workflows.
07Uses a global cache to deduplicate dependencies.

Use cases

Starting a new Python project and managing its dependencies and lockfile.
Running standalone Python scripts that declare their own dependencies.
Replacing a mix of pyenv, virtualenv and pip in CI or local setups.
Speeding up pip installs in existing projects through the pip-compatible interface.

Quick start

1
Install uv from PyPI with pip
pip install uv
2
Create a new project
uv init example
3
Add a dependency to the project
uv add ruff
4
Run a command inside the project environment
uv run ruff check

In collections

CLI & terminal tools

Topics

#python #package-manager #dependency-management #virtual-environment #rust #cli #pip #python-version-management #packaging #resolver

FAQ

What is uv?: An extremely fast Python package and project manager written in Rust, replacing pip, virtualenv, pyenv, pipx and more. uv is a command-line tool for managing Python packages, projects, virtual environments and Python installations. It covers the jobs of pip, pip-tools, pipx, poetry, pyenv, twine and virtualenv in a single binary, so developers can install interpreters, resolve dependencies and run tools from one CLI.
Is uv free to use? What license does it have?: uv is open source under the Apache-2.0 license. Check the license terms before using it in commercial products.
Is uv still maintained?: Actively maintained. The last commit to uv was on Oct 24, 2026.
What can I use uv for?: Starting a new Python project and managing its dependencies and lockfile. Running standalone Python scripts that declare their own dependencies. Replacing a mix of pyenv, virtualenv and pip in CI or local setups. Speeding up pip installs in existing projects through the pip-compatible interface.
How do I install uv?: Install uv from PyPI with pip: pip install uv Create a new project: uv init example Add a dependency to the project: uv add ruff Run a command inside the project environment: uv run ruff check
Where can I get uv?: The source code and installation instructions are on GitHub: https://github.com/astral-sh/uv

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