Bcrypt / Argon2 / PBKDF2 Password Hash Verifier & Generator (Private & Secure)
Generate Bcrypt, Argon2id, and PBKDF2 password hashes and verify candidate passwords against existing Bcrypt hashes (and Argon2id/PBKDF2 hashes made by this tool) entirely in your browser.
How to use
- Toggle between 'Generate Hash' and 'Verify Password Against Hash' modes.
- In Generate mode: enter the plaintext password, adjust the Bcrypt cost factor or PBKDF2 iterations, and click 'Copy Hash'.
- In Verify mode: paste an existing hash ($2b$10$...) and the candidate password to see a Match or Mismatch result.
Technical Considerations
- Bcrypt silently ignores password bytes beyond 72 (no warning is shown).
- Support for $2a$, $2b$, and $2y$ hash dialect prefixes.
Keyboard Shortcuts
- Ctrl/Cmd + KOpen Command Palette
100% Client-Side Privacy: This tool executes entirely within your browser's runtime environment. No payloads, tokens, or inputs are transmitted to external servers.