Bcrypt
HashHash and verify bcrypt passwords
Unlike the general-purpose Hash Generator, this tool is built specifically around bcrypt's deliberately slow, cost-factor-tunable design: you can hash a plaintext password to check your auth backend's storage format, or verify a candidate password against an existing hash without writing a throwaway script. Everything runs locally in your browser via a JS bcrypt implementation, so passwords never leave your machine, but this is meant for testing and understanding bcrypt behavior, not for actual production password hashing, which should happen server-side with a properly maintained library and audited key handling. The cost factor is worth experimenting with here: 10-12 is a common default, but the right number depends on your server hardware, and you want hashing to land around 100-300ms to balance security against login latency.
How to use Bcrypt
- 1.Enter a plaintext password and a cost factor to generate a bcrypt hash for testing your auth backend's storage format.
- 2.Paste an existing bcrypt hash and a candidate password to verify whether they match, without writing a one-off script.
- 3.Experiment with different cost factors to see the real tradeoff between hashing time and brute-force resistance before choosing one for production.
Frequently asked questions
Use via API, SDK, or MCP
Installnpm install @utilix-tech/sdkUsageimport { hashing } from '@utilix-tech/sdk'
const hash = await hashing.hashPassword('my-secret-password', 12)
console.log(hash) // $2b$12$...
const valid = await hashing.verifyPassword('my-secret-password', hash)
console.log(valid) // trueRuns locally · no API key · no rate limits · Node.js SDK docs →