preswald

Preswald is a WASM packager for Python-based interactive data apps: bundle full complex data workflows, particularly visualizations, into single files, runnable completely in-browser, using Pyodide, DuckDB, Pandas, and Plotly, Matplotlib, etc. Build dashboards, reports, and notebooks that run offline, load fast, and share like a document.

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4.3k Stars

650 Forks

4.3k Watchers

Python Language

apache-2.0 License

100 SrcLog Score

Cost to Build

$4.42M

Market Value

$27.49M

How is this calculated?

Growth over time

3 data points · 2026-04-07 → 2026-04-09

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What is the StructuredLabs/preswald GitHub project? Description: "Preswald is a WASM packager for Python-based interactive data apps: bundle full complex data workflows, particularly visualizations, into single files, runnable completely in-browser, using Pyodide, DuckDB, Pandas, and Plotly, Matplotlib, etc. Build dashboards, reports, and notebooks that run offline, load fast, and share like a document.". Written in Python. Explain what it does, its main use cases, key features, and who would benefit from using it.

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How to clone preswald

Clone via HTTPS

git clone https://github.com/StructuredLabs/preswald.git

Clone via SSH

[email protected]:StructuredLabs/preswald.git

Download ZIP

Download master.zip

Found an issue?

Report bugs or request features on the preswald issue tracker:

Open GitHub Issues

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