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This release is a pre-release and may not be stable for production use.

pygodide

PyPI Python versions Downloads CI License: MIT

Docs Ruff

pygodide turns Pygame projects into browser apps using Pyodide with one command, no edits to your source code, and acheiving 2.5x more fps than pygbag.

Pronounced "pie-go-died"

FPS benchmark: pygodide 453 vs pygbag 180 on perf_bench

FPS Performance Benchmark | Full Benchmark

If anything doesn't work out-of-the-box, pygodide offers tons of configuration options to adapt to your needs.

Documentation: https://elan456.github.io/pygodide/

Quick Start

While in your project's root directory, run the following commands:

Install

# Or add to your pyproject.toml and `uv sync`
pip install pygodide

Build

# Produces the web-hostable build/ directory
pygodide build .

# For an Itch.io zip file
pygodide build . --zip

Serve

# Hosts the build/ directory locally
pygodide serve .

Open http://localhost:8000 in your browser.

Troubleshooting

If anything went wrong, head over to the instructions page for more details and troubleshooting guidance.

Examples and Live Demos

Sample projects live under test_targets/ and a few of them are uploaded to itch.io.

Numpy particles demo: https://elan456.itch.io/pygodide-test-project
Audio demo: https://elan456.itch.io/pygodide-audio-demo
Arcade performance benchmark: https://elan456.itch.io/pygodide-performance-benchmark

Try one locally:

pygodide build test_targets/ball_bouncing
pygodide serve test_targets/ball_bouncing

Before every release, each target under test_targets/ is automatically verified using a headless browser to catch regressions. All features shown in the test targets are maintained as first-class features.

Contributing

git clone https://github.com/Elan456/pygodide.git
cd pygodide
uv sync --dev
uv run playwright install chromium
uv run pre-commit install --hook-type pre-commit --hook-type pre-push

The dev group includes pygodide[smoke], so Playwright is installed with uv sync --dev. You still need playwright install chromium once for browser binaries.

Run the same checks as CI:

uv run ruff format --check .
uv run ruff check .
uv run pytest

Smoke tests (from this repo)

uv run playwright install chromium   # once
uv run pygodide smoke /path/to/your/pygame/project
uv run pygodide smoke test_targets --suite

Be sure to read the AGENTS.md it's written for both human contributors as well as AI tools.

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