Bcrypt Generator
Generate bcrypt-style password hashes
Bcrypt Generator is a free online tool from BrowserUtils that generate bcrypt-style password hashes. It runs entirely in your browser — your data never leaves your device. No account required.
Note: This uses PBKDF2-SHA256 as a browser-compatible alternative to bcrypt. Both are password hashing functions designed to be computationally expensive.
How to use Bcrypt Generator
- 1 Paste or type your input into the editor above.
- 2 The tool processes your data instantly — right in your browser, with nothing sent to a server.
- 3 Copy the result with one click or continue editing your input.
About Bcrypt Generator
Free online bcrypt-style hash generator. Uses PBKDF2 with configurable iterations to produce secure password hashes suitable for storage. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
Bcrypt Generator specs
- Runtime
- 100% client-side (browser)
- Built on
- Web Crypto API (SubtleCrypto) for hashing and crypto.getRandomValues for secure randomness
- Cost
- Free — no account, no rate limits, no usage caps
- Browser support
- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
- Part of
- 299 developer tools on BrowserUtils (100% client-side)
Questions
Is this real bcrypt?
This tool uses PBKDF2 from the Web Crypto API as a browser-compatible alternative to bcrypt. Both are key derivation functions designed to be slow and resistant to brute-force attacks.
What are rounds/iterations?
Rounds control how many times the hashing function is applied. Higher values are slower but more secure. The default of 10,000 iterations provides a good balance.
Why use bcrypt instead of SHA-256 for passwords?
SHA-256 is fast by design, which makes brute-force attacks easier. Bcrypt and PBKDF2 are intentionally slow, requiring significant computation per guess, which makes large-scale password cracking impractical.
Can I verify a password against a bcrypt hash?
Yes, paste the password and existing hash to verify if they match. The tool re-hashes the password with the same salt and iterations and compares the results.
Does the bcrypt generator work offline?
Yes, all hashing runs in your browser using the Web Crypto API. Your passwords and hashes are never sent to a server.
What is a salt and why does bcrypt use one?
A salt is random data added to the password before hashing. It ensures that two users with the same password get different hashes, which prevents attackers from using precomputed rainbow tables.
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