Private by design
Utilities run in your browser. CipherBox does not upload your inputs to a server.
Browser-based cybersecurity toolkit
Decode, inspect, calculate, and learn—without leaving your browser.
Raphael’s CipherBox brings practical security utilities and beginner-friendly explanations together in one polished workspace. Your data stays on your device.
Educational use only. Always obtain authorization before testing systems you do not own.
Local workspace ready
No backend
Encode & Decode11 text transformations
EncryptAES-GCM and learning demos
HashIdentify and generate digests
AnalyzeJWTs, IPs, and subnets
Inputs are processed locally in this tab.
Quick access
Featured tools
Jump directly into the utilities security learners and practitioners reach for most often.
Base64
Encode and decode Base64 text with clear examples.
Open tool →AES
Explore authenticated AES-GCM encryption locally.
Open tool →SHA-256
Create a modern one-way message digest.
Open tool →JWT Decoder
Inspect token headers and payload claims safely.
Open tool →Subnet Calculator
Find networks, broadcasts, and usable ranges.
Open tool →Practice Mode
Build fluency with guided security challenges.
Start practice →Learn while doing
Expandable notes connect every transformation to practical security concepts.
Built for every screen
A responsive, accessible workspace works across desktops, tablets, and phones.