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Tiny hashing module that uses the native crypto API in Node.js and the browser

Useful when you want the same hashing API in all environments. My cat calls it isomorphic.

In Node.js it uses node:crypto, while in the browser it uses window.crypto.

The browser version is only ~300 bytes minified & gzipped.

When used in the browser, it must be in a secure context (HTTPS).

This package is for modern browsers. Internet Explorer is not supported.


npm install crypto-hash


import {sha256} from 'crypto-hash';

console.log(await sha256('🦄'));
//=> '36bf255468003165652fe978eaaa8898e191664028475f83f506dabd95298efc'


sha1(input, options?)

sha256(input, options?)

sha384(input, options?)

sha512(input, options?)

Returns a Promise<string> with a Hex-encoded hash.

In Node.js, the operation is executed using worker_threads. A thread is lazily spawned on the first operation and lives until the end of the program execution. It's unrefed, so it won't keep the process alive.

SHA-1 is insecure and should not be used for anything sensitive.


Type: string ArrayBuffer ArrayBufferView


Type: object


Type: string
Values: 'hex' | 'buffer'
Default: 'hex'

Setting this to buffer makes it return an ArrayBuffer instead of a string.


  • hasha - Hashing in Node.js made simple