Text Encrypt / Decrypt (AES)
Encrypt and decrypt text with AES-GCM — all in your browser, nothing is uploaded.
Browser-side AES text encryption
Type your text, enter a password, and click Encrypt. The result is a base64 string you can share or store safely — only someone with the password can read it. Decryption works the same way in reverse.
The tool uses AES-GCM (256-bit) with PBKDF2 key derivation (100 000 iterations, SHA-256). A fresh random salt and IV are generated for every encryption, so encrypting the same message twice always produces a different ciphertext.
FAQ
Is my text sent to a server? No — everything runs in your browser via the Web Crypto API. Nothing leaves your device.
Can I decrypt on another device? Yes — paste the base64 output and enter the same password on any modern browser.
What happens if I lose the password? It can’t be recovered. AES-GCM is a symmetric cipher; without the password the data is unrecoverable.