dcodeIO/bcrypt.js

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

3799 stars · 289 forks observed · 2026-08-28

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

A zero-dependency, pure JavaScript implementation of the bcrypt password hashing algorithm with TypeScript support. It is API-compatible with the native C++ bcrypt Node.js binding and also works in the browser.

Use cases

• hash user passwords in a Node.js app without native compilation
• verify passwords against bcrypt hashes in JavaScript
• add password hashing to a browser-based application
• replace the native bcrypt module with a pure JS fallback
• generate salted password hashes with configurable work factor

When to choose

• you need bcrypt password hashing without native build dependencies
• your app runs in the browser or in environments where compiling C++ addons is impractical
• you want a drop-in replacement for the native bcrypt Node.js binding

When to avoid

• you need maximum hashing throughput, since the pure JS implementation is about 30% slower than native bcrypt
• you need to hash inputs longer than 72 bytes
• your platform supports native modules and performance is critical

Facets

library · maturity stable

auth cryptography security security web-development developer-tools browser cross-platform bcrypt password-hashing zero-dependencies typescript pure-javascript nodejs

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