CyberChef: The Analyst’s Swiss Army Knife
CyberChef is a powerful browser-based tool for decoding and analyzing data. Explores its key features and how analysts use it to decode, convert, and dissect digital evidence in real time.

When it comes to analyzing encoded or obfuscated data, few tools are as versatile and user-friendly as CyberChef.
Nicknamed the “Swiss Army Knife for data,” CyberChef is a web-based application developed by GCHQ that allows cybersecurity analysts, developers, and forensic teams to manipulate data in countless ways — all from their browser, with no installations required.
What Can You Do with CyberChef?
- Decode JWTs and base64 strings
- Convert hex, binary, ASCII, or Unicode formats
- Analyze hashes, dig into compressed data
- Reverse engineer obfuscated JavaScript
- Extract embedded content from files
It’s especially valuable in malware analysis, phishing investigations, and CTF (Capture the Flag) challenges.
CyberChef runs entirely client-side, meaning your data never leaves your browser. That makes it not only powerful, but private and secure for sensitive operations.
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Meet CyberChef: decode, encode, slice, and dice data, all from your browser.
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