Open source webassembly projects
Every project in the registry tagged webassembly, ranked by real GitHub adoption.
Fast grammar checking that respects your privacy
SQLite-compatible database for scalable multi-tenant applications
Fullstack Workspace for Humans & Machines
⚡ Rust/WebAssembly image processing library
Build frontend browser apps with Rust + WebAssembly. Supports server side rendering.
Oqtane is an open-source developer productivity platform for building modern .NET applications and websites that run on Web, Desktop and Mobile.
WebAssembly version of DuckDB
🛡️ BLA (Blind LLM Agents) — Adversarial defense shield that protects binaries, Electron apps, JS bundles, Python, and WebAssembly against AI reverse-engineerin
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Frequently asked questions
How many open source webassembly projects are there?
This registry tracks 8 projects tagged webassembly, with 52,351 GitHub stars between them. The most-adopted is Harper at 17,347 stars.
Are these webassembly projects free to use?
Yes — 8 of the 8 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which webassembly project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these webassembly projects still maintained?
8 of the 8 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.