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I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


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Cryptographically secure UIDs




UID Generator

A small package for generating cryptographically secure UIDs in the browser, safe for both cookie and URL usage.

npm GitHub Workflow Status Coveralls github branch

This package is a mirror of uid-safe, but meant to be used in a browser env. Additionally, it comes bundled with TypeScript typings.

Table of Contents


You can install this package from NPM:

npm add crypto-uid

Or with Yarn:

yarn add crypto-uid


For CDN, you can use unpkg:

The global namespace for crypto-uid is cryptoUid:

const id = cryptoUid(6);



Generate a random UID:

import uid from 'crypto-uid';
const id = uid(6);


Generate a random UID:

const uid = require('crypto-uid');
const id = uid(6);

Browser Support

You can expect this lib to run wherever Web Crypto API is supported.


If you wish to contribute, please use the following guidelines: