Bcrypt Generator
Generate and verify bcrypt password hashes online, right in your browser.
Verify a password against a hash
ToolsSoup's Bcrypt Generator is a free online tool that creates and verifies bcrypt password hashes entirely in your browser. Pick a cost factor, hash any password into the standard $2b$ format, and check an existing hash against a plaintext password — all locally, with no uploads, no sign-up, and nothing ever leaving your device.
What is bcrypt?
Bcrypt is a password-hashing function designed by Niels Provos and David Mazières, built on the Blowfish cipher. Unlike fast hashes such as MD5 or SHA-256, bcrypt is deliberately slow and includes a built-in random salt, which makes precomputed (rainbow table) and brute-force attacks far more expensive. A bcrypt hash is a 60-character string in the form $2b$10$… that packs together the algorithm version, the cost factor, the salt, and the derived hash, so everything needed to verify a password later lives in a single value.
How to generate a bcrypt hash online
Creating a bcrypt hash with ToolsSoup takes just a few seconds:
- Type the password you want to hash into the Password field.
- Choose a cost factor — higher numbers are more secure but slower to compute.
- Click Generate hash, then copy the resulting $2b$ string and store it wherever you keep credentials.
What is the bcrypt cost factor?
The cost factor (also called rounds or work factor) controls how many iterations bcrypt performs — each step up doubles the work. A cost of 10 means 2^10 iterations and is a common default; 12 is stronger but noticeably slower. Choose the highest value your server can compute in a reasonable time, since a slower hash is harder for an attacker to brute-force. Because the cost is stored inside the hash, you can raise it for new passwords without breaking older ones.
Why use this bcrypt generator?
- 100% free with no ads, sign-up, or usage limits.
- Runs entirely in your browser — passwords are hashed locally and never uploaded.
- Generates standard $2b$ bcrypt hashes compatible with common libraries.
- Adjustable cost factor so you can match your security and performance needs.
- Verify mode lets you check a password against an existing hash.
Frequently asked questions
Is this bcrypt generator free?
Yes. Every tool on ToolsSoup is completely free to use, with no account, sign-up, or hidden limits.
Is it safe to generate a bcrypt hash online here?
Yes. Hashing runs entirely in your browser using client-side JavaScript. Your password is never sent to a server, so nothing leaves your device. For maximum safety with real credentials, you can disconnect from the internet after the page loads.
Why do I get a different hash every time for the same password?
Bcrypt embeds a fresh random salt in every hash, so the same password produces a different 60-character string each time. This is by design — it stops attackers from spotting identical passwords. Verification still works because the salt is stored inside the hash itself.
How do I check whether a password matches a hash?
Use the verify section: paste the existing bcrypt hash, type the password, and click Verify. The tool re-hashes the password with the salt and cost taken from the hash and tells you whether they match — it never tries to reverse the hash.
Which cost factor should I choose?
A cost of 10 to 12 is a sensible default for most web applications. Pick the highest value your hardware can handle within roughly 50–250 milliseconds per hash; higher costs slow down attackers but also your own login checks.