Webeface Tools IT – Software Development

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HMAC Generator

Create HMAC-SHA-1, SHA-256 or SHA-512 signatures with a shared secret. Useful for webhook and API request signing.

Processed locally in your browser. Your input is not uploaded.

Hex

How to use this tool

Paste or type your input, adjust the options, then copy or download the result.

HMAC-SHA webhook signature generator

Webhooks from Stripe-like APIs, GitHub and custom Laravel routes verify an HMAC header. This generator computes HMAC-SHA-1, SHA-256 or SHA-512 from a secret and a body.

Copy the hex digest into a test. Secrets stay in the tab. Prefer SHA-256. SHA-1 remains for older integrations.

Compare timing-safe on the server (hash_equals in PHP). Do not use == on hex strings in production.

If you searched for hmac generator, hmac sha256, webhook signature, hmac sha512, this free online HMAC Generator is the page you want. HMAC-SHA signatures for webhooks. It lives at https://blog.webeface.de/tools/hmac-generator next to the IT – Software Development blog, so you can jump from a Laravel tutorial into a working utility without opening another SaaS.

HMAC Generator is built for everyday text, encoding and debugging. Create HMAC-SHA-1, SHA-256 or SHA-512 signatures with a shared secret. Useful for webhook and API request signing. Because processing is local, you can paste staging tokens, draft SQL or unpublished copy without sending it to an unknown formatter.

People also look this tool up as hmac generator, hmac sha256, webhook signature, hmac sha512. Those queries all describe the same job: hmac-sha signatures for webhooks. Bookmark the English URL; German lives under /de.

On a German keyboard you may have typed HMAC Generator, HMAC SHA-256, Webhook Signatur. The HMAC Generator still solves that request. Webeface targets DACH developers who read English tool names but search in German.

A typical workflow is: open HMAC Generator, paste the sample, copy the result, then continue in Hash Generator, AES Encrypt / Decrypt, JWT Decoder. Keeping the utilities on one origin (blog.webeface.de/tools) means one privacy policy and one brand you already know from the blog.

There is no paywall, watermark or daily quota on the HMAC Generator. If a search result promised “hmac generator online free”, this page is that result: fast, private and meant to be used every day.

Step-by-step

  1. Open the free HMAC Generator at https://blog.webeface.de/tools/hmac-generator.
  2. Paste or type your input. Nothing is stored as a document on our servers for this editor.
  3. Adjust options (format, dialect, flags, stack) until the preview matches what you need.
  4. Copy or download the result into Laravel, Nuxt, Nginx, Docker or your editor.
  5. Follow related tools (Hash Generator, AES Encrypt / Decrypt, JWT Decoder) if the next step is a conversion or check.

When to use this tool

  • Craft a signed payload for a local webhook test.
  • Confirm an algorithm mismatch (sha1 vs sha256).
  • Document the exact bytes that are signed, including raw JSON.
  • Search Google for “hmac generator” when you are away from your editor.
  • Share HMAC Generator with a teammate instead of pasting secrets into a random website.

Search terms for this page

People find HMAC Generator with these queries:

  • hmac generator
  • hmac sha256
  • webhook signature
  • hmac sha512

Frequently asked questions

Should the secret be hashed first?

Use the raw shared secret the provider gave you, with the encoding they document.

Hex or Base64?

This page outputs hex. Some APIs want Base64; convert if their docs say so.

Is the HMAC Generator free to use?

Yes. The HMAC Generator on Webeface Tools is free, has no signup and no usage limit.

Do I need an account to use the HMAC Generator?

No account is required. Open the page and start immediately.

Is my data uploaded when I use the HMAC Generator?

No. The HMAC Generator runs in your browser. Input stays on this device.

How do I find this HMAC Generator again?

Bookmark https://blog.webeface.de/tools/hmac-generator or search for hmac generator on Google together with “webeface”.

Does the HMAC Generator work on mobile?

Yes. The layout works on phones and desktops. Large pastes are easier on a computer.

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