Bcrypt Generator | Online Bcrypt Hash Generator & Checker

Bcrypt generator hashes passwords with a chosen cost factor and verifies existing bcrypt hashes in your browser. Compatible with PHP, Node, Python and Spring. Free, no signup.

Also known as: bcrypt generator · bcrypt hash generator online · bcrypt online free · bcrypt checker · bcrypt hash verifier · bcrypt password hash · password hashing tool · password security

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Password Input

Password to hash

Cost factor (rounds)10 = 2^10 = 1,024 iterations, ~80 ms

Recommended range for production password storage in 2026.

Hash version prefix

All three prefixes use the same algorithm for passwords under 72 bytes and verify interchangeably in modern libraries.

Verify against an existing hash (optional)

Bcrypt Hash Output

Enter a password and press Generate Hash. Each run uses a fresh random salt, so the same password produces a different hash every time - that is expected.

Hashing runs in your browser with a self-contained bcrypt implementation. Passwords are never sent anywhere and are not saved between sessions.

About Bcrypt Generator

Generate bcrypt password hashes with a configurable cost factor and verify existing hashes, entirely in your browser. Output is byte-compatible with PHP password_hash, Python bcrypt, Node bcrypt and bcryptjs, Spring Security BCryptPasswordEncoder and Apache htpasswd -B.

Key Features

Adjustable cost factor from 4 to 16 with a live estimate of hashing time and 2^n round count
Choose the $2b$, $2a$ or $2y$ prefix to match your framework, plus a built-in bcrypt checker to verify any hash
Breaks each hash down into version, cost, 22-character salt and 31-character digest so you can see exactly what is stored

Use Cases

Seed a database with a known admin password hash before the signup flow exists
Check whether a hash in a user table was created with a strong enough cost before a security audit
Debug login failures by confirming a password really does verify against the stored bcrypt string

Related Keywords

bcrypt generator

bcrypt hash generator online

bcrypt online

bcrypt checker

bcrypt verify

bcrypt password hash

bcrypt cost factor

password hashing tool

blowfish password hash

Client-side only

The Blowfish key schedule runs in JavaScript inside this page. Nothing you type is transmitted, logged or stored on a server.

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Frequently asked questions

What is Bcrypt Generator used for?

Bcrypt generator hashes passwords with a chosen cost factor and verifies existing bcrypt hashes in your browser. Compatible with PHP, Node, Python and Spring. Free, no signup.

Is Bcrypt Generator free to use?

Yes. Bcrypt Generator is completely free with no usage limits, and there is no paid tier required to use it.

Do I need an account to use Bcrypt Generator?

No. Bcrypt Generator works immediately in your browser with no signup, login, or email address required.

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