11 / Tools & discovery
CyberChef — Data transformation and analysis
CyberChef is the “cyber Swiss army knife”: chain hundreds of operations — encoding, compression, encryption, parsing, and analysis — into recipes that transform data in your browser.
- Access
- Public — no account needed
- Runs on
- CyberChef 11.5
- Live status
- Checking
Who it is for
- Security analysts examining suspicious data
- Developers debugging encodings and binary formats
- Learners exploring how data transformations work
What you can do
Hundreds of operations
Base64, hex, URL encoding, hashing, compression, XOR, AES, and many more.
Recipes
Drag operations into a recipe and watch the output update as you change any step.
Magic detection
Let CyberChef suggest which decodings might reveal readable data.
Client-side
All processing happens locally in the browser.
Getting started
- 01
Open chef.math7.com.
- 02
Paste or drop data into the Input panel.
- 03
Drag operations into the Recipe and read the Output panel.
Access
CyberChef is public and needs no account.
Privacy and data
CyberChef is a static app. Data you paste is processed in your browser and not uploaded to Math7.
Common questions
Can I save a recipe?
Yes. CyberChef can save recipes in your browser and encode them in a shareable link.
Who made CyberChef?
CyberChef is an open-source project originally released by GCHQ.