What is CyberChef?
CyberChef is a web app made by GCHQ, the UK intelligence agency, for transforming data. You build a recipe by dragging operations such as Base64 decode, hex dump, AES decrypt, gunzip, regex extract or hash, and see the output change instantly.
It runs entirely in your browser, so sensitive data stays on your machine. Security analysts, developers and CTF players use it as a Swiss army knife for data.
Key features
- Over 400 operations for encoding, encryption, compression and parsing
- Chain operations into recipes
- Magic mode guesses how to decode data
- Runs fully client-side
Pros
- Incredibly versatile
- Data never leaves the browser
- Recipes can be shared as links
Cons
- Overwhelming for beginners
- Very large files can slow the browser
Best for
Ratings and reviews
No reviews yet. Community ratings and reviews are coming soon, so you can share how CyberChef worked for you.
CyberChef FAQ
Is CyberChef free?
CyberChef is free and open source with no account.
Do I need an account to use CyberChef?
No. CyberChef works without signing up, so you can open gchq.github.io and start using it right away.
What are some alternatives to CyberChef?
Similar free tools that also work without an account include Regex101, Crontab Guru, Transform, JSON Crack, Carbon and Ray.so.