UUID Studio

bcrypt Hash Generator

bcrypt password hashes for dev/test.

  • đź”’ No data stored or uploaded
  • ⚡ 100% client-side
  • 🆓 Free, no account
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Override only when Auto cannot parse your paste. Changing this loads a matching sample into Input — click Convert to run. Use Load sample to cycle every format example.

All conversions

Read-only representations of the same 16 bytes. Every textual form is listed here, not in “Prefer format”.

Paste two values: if both sides are valid JSON, a structural diff appears; otherwise UUID / bytes are compared when both decode to the same format.

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Create or edit JSON here (syntax colors), then format, validate, or convert - same as MongoDB $binary UUID blobs on the Convert tab once detected.

New document

Hash, HMAC, AES-GCM/CBC + RSA-OAEP, codecs, JWT decoding, UUID v4, and secure random - all client-side. JWTs use Base64URL (three segments), not a single MIME Base64 block - use Decode JWT below, not raw Base64 decode.

About bcrypt Hash Generator

bcrypt is still one of the most widely used password-hashing algorithms, precisely because it's deliberately slow - a property that matters far more than raw speed when the whole point is resisting brute-force attacks.

Generate a bcrypt hash from a plaintext password with an adjustable cost factor (4-15); higher cost means slower hashing and stronger brute-force resistance. This is meant for quick dev/test hashes - real applications should hash passwords inside their own auth library, not by pasting them into a browser tab.

FAQ

Production passwords?
Use your app's auth library; this is for quick test hashes.