Bcrypt generation and verification
Use this bcrypt hasher to generate hashes from plain text, or perform a bcrypt check to see if a password matches an existing hash. This is ideal for quickly testing credentials when working with authentication code or verifying fixtures.
Bcrypt is a one-way password hash, not an encryption format. If you are looking for a bcrypt decoder online or a way to decrypt bcrypt password online, bcrypt does not work that way. You can only verify a candidate password against the stored hash to see if they match.
Cost factor tuning
In Hash mode, you can adjust the cost factor between 4 and 15 to control the computational work required. Higher values make the hash slower and more secure against brute-force attacks.
Settings of 10 to 12 are common, but setting the cost above 12 in this bcrypt online tool will trigger a high-cost warning because the browser may take noticeably longer to process it.
Batch comparison
Turn on “Batch by newline” to run a bcrypt compare online for multiple items at once. In Hash mode, it generates one hash per line. As a bcrypt hash verifier and bcrypt verifier, it compares each plain-text line against the corresponding hashed line, instantly reporting the number of exact matches.