How the Encryption Works

Every step happens on your device. Our servers only see encrypted data — and we can't do anything with it.

You Provide the Data

Type text, paste a message, or upload a file — right in your browser. At this point, nothing has been sent anywhere. Your data is still only on your device.

Your Browser Encrypts It

Using the Web Crypto API built into every modern browser, your data gets encrypted with AES-256-GCM. A unique key is generated on your device. The key never leaves your computer.

You Get the Encrypted Result

The encrypted output appears instantly. If you choose to store it, what reaches our servers is already encrypted — unreadable without your key. You control what happens next.

Technical Details

We use AES-256-GCM for encryption — the same standard used by financial institutions and government agencies. Keys are derived using PBKDF2 with 100,000 iterations, making brute-force attacks computationally impractical.

All cryptographic operations use the browser's built-in Web Crypto API. This means your data is processed locally before any network communication. The original data and your encryption keys never leave your device.

The tools work without an internet connection once loaded. No account, no data collection, no tracking of how you use the tools. Just encryption, nothing else.

Security Fundamentals

Client-side encryption using the Web Crypto API — your browser does the work
AES-256-GCM with 256-bit keys — computationally infeasible to brute-force
Zero server access to plaintext or keys — we cannot help you if you lose your key

Ready to Encrypt Something?

No signup, no waiting. Open the tools and start encrypting right now.

Open the Encryption Tools