Hash Generator

Hash UTF-8 text locally with the Web Crypto API.

Up to 200,000 input characters. Output limit: 2,000,000 characters.

Download result

Your input is processed in your browser and is not uploaded to ToolPixels. This tool does not save your input.

How to use it

  1. Paste your input, or load the example.
  2. Choose the options that match your task.
  3. Select Generate hash, then review the result.
  4. Copy the result or download hash-generator.txt.

Exact text, exact digest

The result is a lowercase hexadecimal digest. Spaces, line endings and Unicode normalization affect the bytes and therefore the hash. Empty text is valid and has a defined digest. SHA-1 is offered only for legacy compatibility, not collision-resistant security. A plain hash is not encryption, a password-storage scheme or proof of authenticity. Web Crypto requires HTTPS in supported browsers.

Related developer tools