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 and Base64, more complex encryption like AES, DES and Blowfish, creating binary and hexdumps, compression and decompression of data, calculating hashes and checksums, IPv6 and X.509 parsing, changing character encodings, and much more.
The tool is designed to enable both technical and non-technical analysts to manipulate data in complex ways without having to deal with complex tools or algorithms.
It was conceived, designed, built and incrementally improved by an analyst in their 10% innovation time over several years.
CyberChef is still under active development. As a result, it shouldn’t be considered a finished product.
There is still testing and bug fixing to do, new features to be added and additional documentation to write. Please contribute!
Cryptographic operations in CyberChef should not be relied upon to provide security in any situation. No guarantee is offered for their correctness.
A live demo can be found here – have fun!
If you would like to try out CyberChef locally you can either build it yourself:
docker build --tag cyberchef --ulimit nofile=10000 .
docker run -it -p 8080:80 cyberchef
There are four main areas in CyberChef:
By manipulating CyberChef’s URL hash, you can change the initial settings with which the page opens. The format is https://gchq.github.io/CyberChef/#recipe=Operation()&input=...
Supported arguments are recipe
, input
(encoded in Base64), and theme
.
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