utility

API Signature Tool

sign and verify webhook payloads using HMAC SHA algorithms

Ready

Mode

Algorithm

Secret

Output Encoding

Provided Signature

Input

Output

Example output:
3c4b6f...

About API Signature Tool

API Signature Tool helps you sign and verify webhook payloads using hmac sha algorithms directly in your browser with no backend dependency.

Use cases

Examples

Sample API Signature Tool transformation output.

Input

{"event":"order.created","id":"evt_123"}

Output

3c4b6f...

Idempotent rerun example for API Signature Tool when applicable.

Input

3c4b6f...

Output

3c4b6f...

FAQ

Does API Signature Tool send my data to a server?

No. Execution happens in your browser tab.

Can I share a direct URL for API Signature Tool?

Yes. Every tool has its own indexable route under /tools/<slug>.