Skip to Content
THE WASIX BUILD COLLECTION

Great software.
New possibilities.

Explore the tools, libraries, and runtimes being built for WebAssembly. Powered by wasinix , the Nix-based WASIX package collection.

EXPLORE THE ECOSYSTEM

Find your next building block.

Full package collection
12 featured recipesSource recipes in wasinix

This is a curated selection of build recipes. For current versions, build results, and artifacts, explore wasinix on GitHub .

PYTHON, WITH YOUR PACKAGES

Your ecosystem.
Ready for WASIX.

From FastAPI to NumPy. Bring familiar Python packages to WebAssembly with prebuilt wheels from the WASIX registry.

FastAPINumPypandasPydanticcryptography
Python installation guide
434 packagesIn the Python registry · checked September 12, 2026
01

Install packages for WASIX

pip install fastapi \ --index-url https://python-registry.wasmer.app/all/simple/ \ --platform wasix_wasm32 \ --python-version 3.13 \ --only-binary=:all: \ --target ./wasix-packages

Replace fastapi with your package. This installs wheels for WASIX CPython 3.13 into ./wasix-packages.

02

Run it with Wasmer

wasmer run python/python@=3.13.19 \ --volume ./wasix-packages:/packages \ --env PYTHONPATH=/packages \ -- -c "import fastapi; print('FastAPI', fastapi.__version__)"

Install Wasmer 7 or newer, then run this command from the same directory as pip. It mounts your packages and prints the FastAPI version from inside WASIX Python.

Browse all Python packages
FROM SOURCE TO SOMETHING NEW

Build it yourself.
Make it your own.

wasinix keeps package recipes and toolchains together in a Nix flake. Start with the setup guide, then build a package or contribute your own.

Get set up with wasinix
Example · Git for WASIX
# Clone the package collection
git clone https://github.com/wasix-org/wasinix.git
cd wasinix

# Build the Git package
nix build .#legacyPackages.x86_64-linux.packages.wasix.preferred.git

Requires Git and Nix with flakes enabled on x86_64 Linux. Follow the setup guide to configure your builder.

Read the build guide

Have code of your own?

Get started with C / C++, Rust, or Python on WASIX.

Install WASIX