Encoding & Hash

HMAC Generator

Authenticate a message using HMAC-SHA-256 or SHA-512.

On your deviceFREENo account needed

Guest results are not saved to an account. Sign in before processing to keep results in your private history for 30 days.

ExampleSee sample input and settings

Load the example, adjust the values, then run the tool.

Example input
The quick brown fox jumps over the lazy dog
Secret key (not stored)
key
Algorithm
SHA-256
WorkspaceLocal
Maximum file size: 1 MB · UTF-8
0 UTF-16 Characters ⌘ / Ctrl + Enter · Run
No result yet.Choose your options, process your input, and download or copy the result.
ReadyOn your device
Local tools process files on your device. Server tools upload files only when you choose to process them.

About this tool

Authenticate a message using HMAC-SHA-256 or SHA-512. Paste your own input or try the example, run the tool, then copy or download the result.

Choose your options, process your input, and download or copy the result.