GoogleChromeLabs/comlink

Health v2 · maintenance only

Adoption not part of the score

12804 stars · 438 forks observed · 2026-10-15

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Comlink is a tiny (1.1kB) TypeScript library that implements RPC over postMessage using ES6 Proxies, making WebWorkers feel like local objects. It hides the message-passing boilerplate so you can call worker code with plain async/await.

Use cases

• run heavy computation off the main thread with web workers
• call worker functions like local async functions
• avoid postMessage boilerplate in browser apps
• keep the UI thread responsive on low-end mobile devices
• share objects between main thread and worker
• use callbacks and proxies across worker boundaries

When to choose

• you want ergonomic, promise-based WebWorker communication in the browser
• you need a tiny dependency with broad browser support
• you want to move CPU-heavy work off the main thread without rewriting APIs

When to avoid

• you need shared-memory parallelism or fine-grained thread control
• your environment lacks WebWorkers or ES6 Proxy support and you can't polyfill
• you need structured high-throughput message passing rather than RPC-style calls

Facets

library · maturity stable

rpc concurrency developer-tools web-development frontend developer-tools browser webworkers es6-proxies postmessage typescript multithreading web-server nodejs

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