About BLAKE3 Hash Generator
Hashes the input using BLAKE3 (UTF-8 encoded), with an optional key (also UTF-8), and outputs the result in hexadecimal format.
Input: text. Output: text.
Format reference: BLAKE3 background and specification
Example
Use “Try example” to load this public sample and its settings, then run it.
Settings used in this example
| Parameter | Example value | Input and choices |
|---|---|---|
| Size (bytes) | 8 | Minimum: 1. Maximum: 65535. Integer |
| Key | "" | Text |
Sample keys and passwords are public. Never use them to protect real data.
Input
Hello world
Result
e7e6fb7d2869d109
Parameters
| Parameter | Default value | Input and choices |
|---|---|---|
| Size (bytes) | 16 | Minimum: 1. Maximum: 65535. Integer |
| Key | "" | Text |
Before interpreting the result
Use a checksum to compare exact bytes against a trusted digest. Choose a password hashing function for passwords and a MAC for keyed authentication. MD5 and SHA-1 are unsuitable for new security-sensitive designs.
How to use this page
- Paste your input or open a local file.
- Adjust tool options if needed, then choose Run tool.
- Copy the result or download the original output bytes.
Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.