CyberChef — Data Swiss Army Knife

400+ data operations — encoding, hashing, encryption, conversion — chained into recipes.

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Open-source project "CyberChef" by GCHQ, used under the Apache-2.0 license. Source code

Runs 100% in your browser. Your files are not uploaded to any server.

How to use CyberChef — Data Swiss Army Knife

  1. Paste or drop your data into the Input box.
  2. Drag operations from the left (e.g. From Base64, SHA2, AES Decrypt) into the Recipe.
  3. Read the Output; save or share the recipe for next time.

Frequently asked questions

Is my data uploaded?

No. CyberChef runs completely in your browser.

Who made CyberChef?

GCHQ, which released it as open source under the Apache 2.0 license.

Is CyberChef — Data Swiss Army Knife free?

Yes. CyberChef — Data Swiss Army Knife is free to use with no sign-up and no watermark.

Are my files uploaded to your server?

No. All processing happens locally in your browser using JavaScript and WebAssembly. Your files never leave your device, which also makes it fast and private.

Does it work on my phone?

Yes. It works in any modern browser on Windows, Mac, Linux, Android and iPhone. Very large files may be slow on older phones.

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