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Generate HMAC from Text

Generate HMAC-SHA1, HMAC-SHA256, or HMAC-SHA512 from text using a secret key.

1) Add input

Paste text, choose a file, or enter the hash values you want to work with.

2) Set options

Choose algorithms, encodings, and verification options as needed.

3) Copy result

Use the generated or verified output anywhere in your workflow.

Text to sign

Secret key

HMAC algorithm

Output encoding

Trim text

Lowercase text before hashing

Line endings

UTF-8 BOM

Inputs stay in this page and are processed locally in your browser.

Result