How to use: Bcrypt

Bcrypt is a free online Cryptography Tools tool that bcrypt is a password hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher, and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive f instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.

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Description

bcrypt is a password hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher, and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive f

  • Cryptography Tools
  • Because everything is computed client-side, Bcrypt is safe to use with sensitive data such as API keys, tokens or private logs.
Input Bcrypt Output Runs 100% in your browser — your data never leaves your device.
Bcrypt — Input → Output

How to use

Using Bcrypt takes three steps:

  1. Paste your data into the input box (or load the example).
  2. Configure the options to match your target format or scenario.
  3. Copy, download or inspect the output — it updates live as you type.
How to use · Bcrypt 1 Paste your data intothe input box (or loadthe example). 2 Configure the optionsto match your targetformat or scenario. 3 Copy, download orinspect the output —it updates live as youtype.
How to use

Run

Use cases

Common situations where Bcrypt helps:

  • bcrypt is a password hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher, and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive f

Parameters

This tool has no options — it works on the input alone.

FAQ

What is Bcrypt?

Bcrypt bcrypt is a password hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher, and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive f. It runs entirely in your browser, so your data stays private.

Is Bcrypt free to use?

Yes. Bcrypt is free, unlimited and works without registration or installation.

Does my data get uploaded?

No. All processing happens locally in your browser; nothing is sent to any server.

Good to know

  • Everything runs client-side, so extremely large inputs are limited by your browser tab’s memory rather than by a server upload limit.
  • The worked example below could not be pre-computed for this tool (threw: function is not iterable (cannot read property Symbol(Symbol.iterator))); the interactive tool above still works normally.

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