Text Encrypt / Decrypt
Encrypt and decrypt text with a password using AES-256-GCM — military-grade encryption that runs entirely in your browser. Share the base64 output securely; anyone with the password can decrypt it using this tool. Your text never leaves your device.
AES-256-GCM encryption with PBKDF2 key derivation (100,000 iterations). Your text never leaves your browser — all processing is done locally using the Web Crypto API.
Frequently Asked Questions
- Is this text encryption tool free?
- Yes, 100% free. No account, no limits, no usage caps.
- Are my texts and passwords safe?
- All encryption and decryption runs locally in your browser using the built-in Web Crypto API. Nothing is uploaded — your plaintext and password never touch a server.
- What encryption algorithm does this use?
- AES-256-GCM (Advanced Encryption Standard, 256-bit key, Galois/Counter Mode). The key is derived from your password using PBKDF2 with SHA-256 and 100,000 iterations. A random 16-byte salt and 12-byte IV are generated for each encryption, making every output unique even for the same input.
- How do I share encrypted text securely?
- Copy or download the base64 output and send it through any channel (email, chat, etc.). Share the password separately through a different channel — for example, encrypt the text via email and share the password via SMS.
- Can I decrypt the output elsewhere?
- The output is standard AES-256-GCM. Any implementation that reads the format (salt 16 bytes + IV 12 bytes + ciphertext, all base64-encoded) can decrypt it. You can also bookmark this page to decrypt later.
- Does it work on mobile?
- Yes, works on all modern browsers including mobile Safari and Chrome on iOS and Android.