alewin/useWorker

Health v2 · maintenance only

Adoption not part of the score

3113 stars · 106 forks observed · 2026-08-28

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

useWorker() is a small React hook library that lets you run expensive JavaScript functions in Web Workers without blocking the UI, using a Promise-based API instead of raw worker message events. It supports TypeScript, timeouts, remote dependencies, transferable objects, and automatic worker cleanup.

Use cases

• sort large arrays without freezing the UI
• parse or generate CSV files in the background
• run CPU-intensive calculations off the main thread
• use web workers with a simple React hook syntax
• offload expensive functions from React components
• run external scripts inside a web worker

When to choose

• you use React and need non-blocking background tasks
• you want a Promise-based alternative to raw Web Worker messaging
• you need a tiny (<3KB) worker abstraction with TypeScript support
• you want automatic worker lifecycle management with timeouts

When to avoid

• your project does not use React
• your worker function needs DOM or window access
• you need to run the same worker concurrently while it is busy
• your function returns non-serializable values like functions

Facets

library · maturity maintenance

concurrency developer-tools web-development frontend developer-tools browser react-hook web-workers non-blocking-ui typescript promises javascript react

Member repositories

For agents

markdown · JSON · MCP: product_card(name="alewin/useWorker")