Encrypt and decrypt text using AES-256-GCM with a password, all processing happens locally in your browser
Text Tools
About This Tool
Text Encrypt/Decrypt is a browser-based encryption tool that uses AES-256-GCM with PBKDF2 key derivation to securely encrypt and decrypt text with a password. It features a password strength meter, one-click copy of encrypted output, and toggle between encrypt and decrypt modes — all processing happens locally in your browser with zero server dependency.
Key Features
- AES-256-GCM encryption with PBKDF2 key derivation using 100,000 iterations
- Password strength meter with real-time evaluation from Weak to Strong
- Toggle between encrypt and decrypt modes with a single click
- Password visibility toggle for easy input verification
- Base64-encoded output for easy sharing and storage of encrypted text
- One-click copy of encrypted or decrypted results to clipboard
Use Cases
- Encrypt sensitive messages before sharing via email or messaging apps
- Securely store passwords or API keys in encrypted Base64 format
- Share confidential information with colleagues using a shared password
- Protect personal notes or diary entries with password-based encryption
- Verify encrypted data integrity by decrypting and confirming the original text
encryption
AES-256
password
Base64
Frequently Asked Questions
What encryption algorithm does this tool use?
The tool uses AES-256-GCM encryption with PBKDF2 key derivation (100,000 iterations and SHA-256) to securely encrypt your text. All processing happens locally in your browser.
What is the password strength meter?
The password strength meter evaluates your password based on length, character variety (uppercase, lowercase, digits, special characters) and displays a strength rating from Weak to Strong to help you choose a secure password.
Can I decrypt text that was encrypted elsewhere?
You can only decrypt text that was encrypted with this tool using the same password. The encrypted output is Base64-encoded and contains the salt, IV, and ciphertext needed for decryption.
Is my data safe when using this tool?
Absolutely. All encryption and decryption happens locally in your browser using the Web Crypto API. No data is uploaded to any server, and your password is never stored or transmitted.
Can I use this tool on my phone?
Yes, the Text Encrypt/Decrypt is fully responsive and works on all devices including smartphones, tablets, and desktop computers.