BLAKE3

BLAKE3 is a free online Hex Tools tool that hashes the input using BLAKE3 (UTF-8 encoded), with an optional key (also UTF-8), and outputs the result in hexadecimal format 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.

How to use: BLAKE3 →

Description

Hashes the input using BLAKE3 (UTF-8 encoded), with an optional key (also UTF-8), and outputs the result in hexadecimal format.

  • This tool runs the official CyberChef engine on the 26173 server. Avoid pasting secrets you would not send to any server.

How to use

Using BLAKE3 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.

Use cases

Common situations where BLAKE3 helps:

  • Hashes the input using BLAKE3 (UTF-8 encoded), with an optional key (also UTF-8), and outputs the result in hexadecimal format.
  • This tool runs the official CyberChef engine on the 26173 server. Avoid pasting secrets you would not send to any server.

FAQ

What is BLAKE3?

BLAKE3 hashes the input using BLAKE3 (UTF-8 encoded), with an optional key (also UTF-8), and outputs the result in hexadecimal format. It runs entirely in your browser, so your data stays private.

Is BLAKE3 free to use?

Yes. BLAKE3 is free, unlimited and works without registration or installation.

Does my data get uploaded?

Is my data uploaded for this tool? — This tool is processed on our server by design; input is used only for the computation and is not stored.

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