Free HMAC Generator

Generate keyed hashes (HMAC) using MD5, SHA-1, SHA-256, SHA-384 and SHA-512. Enter text or upload a file, set a secret key and get HMACs for multiple algorithms at once. All operations happen locally in your browser.

Free Hash Generator

Compute MD5 / SHA / SHA3 hashes for text and files.

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Free Password Generator

Generate strong random keys for HMAC and signing.

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Free PKCS#12 Exporter

Bundle keys and certs into .p12 files for import.

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Input Type

Text File

Text is encoded as UTF-8 before HMAC calculation. File mode hashes the entire file contents.

Text Input

For API request signing or message authentication, paste the exact payload here.

File Input

Drop a file here or click to browse

Any file type is supported. Size is limited only by your browser’s memory.

No file selected.

Secret Key

Use TEXT mode for normal keys / passwords. Use HEX mode when you already have a hex-encoded key.

Key length: 0 bytes

Options Auto-update HMAC while typing (text mode) Uppercase output (A–F) Mask sensitive fields (blur on screen)

HMAC Summary

Waiting for input…

Source: Text

Data Size: 0 bytes

Key Mode: TEXT

Algorithms: HMAC-MD5, HMAC-SHA-1, HMAC-SHA-256, HMAC-SHA-384, HMAC-SHA-512

HMAC-MD5 Legacy / Insecure

128-bit keyed hash — not recommended for new systems.

HMAC-SHA-1 Legacy / Broken

160-bit keyed hash — avoid for new designs.

HMAC-SHA-256 Recommended

256-bit keyed hash — common choice for APIs and webhooks.

HMAC-SHA-384

384-bit keyed hash — stronger SHA-2 variant.

HMAC-SHA-512

512-bit keyed hash — great for 64-bit systems and future-proofing.

Saved Results (this session)

No saved HMAC results yet. Generate values, then click “Save Result” to keep them.

Enter text or choose a file, set your secret key, then generate HMACs across all algorithms.