tinylibs/tinypool

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

1586 stars · 48 forks observed · 2026-08-28

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

Tinypool is a minimal, dependency-free Node.js worker thread pool library, a slimmed-down fork of Piscina built primarily for Vitest. It supports both worker_threads and child_process runtimes with a tiny 38KB install size.

Use cases

• run CPU-bound tasks in parallel worker threads in Node.js
• offload heavy computation off the main thread
• pool worker threads for a test runner
• execute tasks in child processes instead of threads
• keep install size tiny in a bundler or test framework
• communicate between main thread and workers via MessageChannel

When to choose

• you need a tiny, zero-dependency worker pool for Node.js 18+ with ESM
• you're building a test runner or tool like Vitest that needs worker pooling
• you want worker_threads or child_process support without Piscina's extra features

When to avoid

• you need utilization metrics or OS-specific thread priority settings - use Piscina
• you need CommonJS support - Tinypool is ESM-only
• you're not on Node.js 18 or higher

Facets

library · maturity active

concurrency developer-tools developer-tools performance backend cli worker-threads thread-pool piscina-fork esm minimal vitest child-process nodejs

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