sindresorhus/pify

Health v2 · maintenance only

Adoption not part of the score

1503 stars · 73 forks observed · 2026-08-28

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

A small JavaScript library that converts callback-style functions or entire modules into Promise-based APIs. It offers options like multiArgs, include/exclude method filtering, and errorFirst handling.

Use cases

• promisify a callback-style function
• convert fs.readFile to use async/await
• wrap an entire module's methods in promises
• promisify APIs where the error is not the first callback argument
• return multiple callback arguments as an array
• exclude Sync methods when promisifying a module

When to choose

• you need to promisify whole modules or objects, not just single functions
• you need options like multiArgs, include/exclude, or errorFirst
• you want a faster, more flexible alternative to util.promisify
• you're on an older Node.js version without util.promisify

When to avoid

• you're on modern Node.js and util.promisify meets your needs
• the target API already returns promises
• you need promise cancellation or advanced control-flow features

Facets

library · maturity stable

concurrency developer-tools developer-tools programming-languages promisify promises callbacks async-await utility nodejs deno javascript

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