The Missing Piece to Software Package Management

Replace Brew, apt-get and Chocolatey with a single tool

Pixi — one package manager for Windows, macOS, and Linux. Fast. Declarative. Reproducible.

36k+ packages
Multi-language
Pin versions
GPU & SIMD support

To install, run the following command in your terminal:

curl -fsSL https://pixi.sh/install.sh | bash

Or find alternative installation methods in our documentation.

Pixi is Fast

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Pixi is up to 10x faster than other tools (such as Conda or Mamba). It is written in Rust and downloads and installs packages in parallel.

Simple

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Running a Pixi project is very simple, thanks to the integrated task system. Just clone a project, and run `pixi run start` to get going!

Open-Source

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Pixi is licensed under the permissive BSD3-License. By default, Pixi uses packages from conda-forge which are free, and contain over 25'000 open source packages to choose from!

Reproducible

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We use lockfiles to capture your environment perfectly. You run the same software locally as in the CI or your coworkers machine. No more: works on my machine!

Trusted by Engineers at

Use Pixi Everywhere

Reproducible Environments

Data Science

Spin up your data science environment in seconds—complete with Jupyter, pandas, SciPy and more. Reproducible across your team, on any machine (Windows, macOS, Linux).

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Deploy with Ease

Robotics

Use pixi with RoboStack to set up, build, and deploy your ROS/ROS 2 workspaces—on your dev machine, in CI, and directly on your robot.

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First-class support

Machine Learning

pixi has first-class support for PyTorch, CUDA, SciKit-Learn, Transformers and more. Set up multiple environments to control what GPU's and optimizations make sense for your project.

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What Do People Think?

Fast Dependency Resolution for Everyone

Other Tools We've Made

Dev Blog

Where we talk about software package and environment management as well as some of the puzzles we solved recently and in the near future.

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Building the Missing Piece Together

When we created Prefix.dev, our goal was simple: to solve the challenges developers face every day by providing a seamless, efficient, and intuitive platform. We believe in empowering developers to focus on what matters—building and innovating—while we handle the complexities behind the scenes.

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