Cryptographic Workbench
A local-first, highly secure sandbox for symmetric and asymmetric cryptographic operations executed 100% in-browser.
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How It Works
- Choose symmetric AES or asymmetric RSA mode
- Generate or provide keys and parameters locally
- Perform ultra-fast, offline encryption and decryption
Use Cases
- Local data protection
- Generating secure keypairs for communication
- Learning cryptographic schemes
Frequently Asked Questions
Are my private keys sent to a server?
Absolutely not. All keys and cipher transformations are generated in your browser memory using the native WebCrypto API. No network request is ever made.
Does the Cryptographic Workbench send my code or data to any server?
No. Everything runs locally in your browser. Your code, data, and files remain on your device at all times.
What input size limits apply?
The tool handles most practical input sizes. Very large files may cause browser performance limitations since processing is done client-side.
Can I use this in my development workflow?
Absolutely. The tool is designed for developers and integrates well into local development workflows without needing command-line utilities.
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