Encryption Tools Online — AES & DES Encrypt / Decrypt
Encrypt and decrypt text with AES and DES right in your browser. Enter your text and a key, choose an algorithm, and get the result instantly — client-side, private, and never uploaded.
Output will appear here…
How to use Encryption Tools
- Enter or paste your text in the input editor.
- Choose Encrypt or Decrypt and pick an algorithm.
- Enter a key, or toggle Auto-generate to create one.
- Click the button and copy the result.
Features
AES & DES
Encrypt and decrypt with AES (128/192/256) and DES.
100% client-side
All encryption runs in your browser — nothing is uploaded.
Auto-generate keys
Create a random key with a single toggle.
Encrypt & decrypt
Switch modes and swap input/output instantly.
Copy output
Copy the result to your clipboard in one click.
No signup
Free and private, with no account required.
What is Encryption Tools?
These encryption tools let you protect text with symmetric encryption (AES or DES) using a key you choose. Everything runs client-side with CryptoJS, so your data and key stay on your device. Encrypt sensitive notes, share ciphertext, or learn how symmetric encryption works — all for free.
About these encryption tools
Supported algorithms
- AES-256-CBC (Advanced Encryption Standard)
- AES-192-CBC
- AES-128-CBC
- DES-CBC (Data Encryption Standard)
Privacy & security
- Client-side only — no data sent to any server
- Random key generation
- Both encryption and decryption
- Copy and swap for quick round-trips
Related JSON tools
Frequently Asked Questions
Everything you need to know about JSON Reader