CyberChef
THE CYBER SWISS ARMY KNIFE
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CyberChef — The Cyber Swiss Army Knife Online
CyberChef is a simple, intuitive web app for carrying out all manner of "cyber" operations within a web browser. These operations include simple encoding like XOR or Base64, more complex encryption like AES, DES and Blowfish, creating binary and hexdumps, compressing and decompressing data, calculating hashes and checksums, IPv6 and IPv4 parsing, data stripping, and much more.
Local Processing
All operations are executed locally in your browser. Your data never leaves your machine.
Modular Recipe
Chain multiple operations together to create complex transformation workflows.
50+ Operations
Wide range of tools for encoding, hashing, encryption, and data analysis.
Why use CyberChef?
CyberChef treats data as a fluid stream that can be subjected to a sequence of operations known as a "recipe". This architectural decision allows for complex, multi-stage transformations—such as base64 decoding a payload, decompressing it using Gunzip, and then formatting the resulting JSON—within a single, drag-and-drop interface.
Frequently Asked Questions
- Is CyberChef free?
- Yes, this tool is completely free to use for any personal or professional project.
- Is it safe for sensitive data?
- Absolutely. Because there is no server-side component, your input data and the "recipes" you create are never transmitted over the network.
- Can it handle large files?
- The tool utilizes local browser memory. While it can handle large files (up to ~2GB depending on browser), very large data may slow down your browser tab.