Text Encrypt & Decrypt
NewEncrypt any text message with AES-256 symmetric encryption using a secret key, and decrypt it back with the same key. Perfect for securely sharing sensitive information, storing private notes, or learning about symmetric encryption. All encryption and decryption happens in your browser — your text and key never leave your device. Uses the Web Crypto API for industry-standard security.
Text Encrypt & Decrypt
AES-256-GCM encryption in your browser. Your data never leaves your device.
How to Use Text Encrypt & Decrypt
- 1Enter your text in the input field
- 2Enter a secret key (remember this — you need it to decrypt)
- 3Click Encrypt to generate the encrypted ciphertext
- 4To decrypt, paste the ciphertext, enter the same key, and click Decrypt
Your Privacy is Protected
Text Encrypt & Decrypt runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.
Frequently Asked Questions
What encryption is used?
AES-256-GCM, the same encryption standard used by governments, banks, and major tech companies worldwide.
Can I recover the text if I forget the key?
No. Without the correct key, the encrypted data cannot be decrypted. Keep your key safe.
Is this tool secure?
Yes. Encryption runs entirely in your browser using the Web Crypto API. No data is transmitted anywhere.