Bcrypt Password Hasher
Free online Bcrypt password hashing and verification with adjustable cost (4-14) and built-in salt. Runs entirely in your browser.
How to use
What it does
Bcrypt is an adaptive hash designed for password storage: it bakes in a random salt and tunes its cost (work factor) to resist brute force and GPU acceleration. This tool generates a hash and verifies whether a plaintext matches an existing hash, all in your browser.
Example
In "Hash" mode, set the plaintext to password123 and cost to 10; you get something like:
$2a$10$urrpc8gKmopBnjfGTfsgF.adTHF.2.UEX6.3ig7TrUCoCYy6w.LIiSwitch to "Verify", type password123 again, paste that hash, and "Execute" returns "Match ✓".
Cost
Cost is the exponent of 2 for the iteration count: each +1 roughly doubles the time. 10 is a common default; 12 suits more sensitive systems. Because this runs in the browser, very high cost will feel sluggish.