developit/web-worker

Health v2 · maintenance only

Adoption not part of the score

1175 stars · 57 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A small npm library that provides a consistent Web Worker API across browsers and Node.js, implementing browser-style Workers on top of Node's worker_threads. In the browser it simply aliases the native Worker, so the same worker code runs in both environments.

Use cases

• run web workers in node
• write worker code that works in browser and node
• use module workers in node
• share worker code between frontend and backend
• offload cpu-heavy work to a background thread in node
• test browser worker code in node

When to choose

• you need the same Worker-based code to run in both Node.js and browsers
• you want DOM-style events and onmessage handlers in Node workers
• you need Module Workers ({type:'module'}) support in Node
• you're building an isomorphic npm module that spawns workers

When to avoid

• you only target browsers and can use the native Worker directly
• you need deep control over Node worker_threads features like SharedArrayBuffer transfers or resource limits
• your build tooling or test framework can't resolve worker URLs relative to modules

Facets

library · maturity stable

concurrency developer-tools developer-tools cross-platform web-development backend browser web-workers worker-threads isomorphic multithreading module-workers nodejs javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="developit/web-worker")