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AES Encrypt / Decrypt

Encrypt text with a password using AES, and decrypt it again with the same settings.

  • Runs in your browser
  • Instant results
  • Free, no sign-up
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How to use the AES Encryption

  1. Choose the mode, key size and a strong password.
  2. Type text and click Encrypt.
  3. To decrypt, paste the Base64 text, enter the password and click Decrypt.

Frequently asked questions

Which mode should I choose?

AES-GCM. It also detects tampering. Use CBC only for compatibility with older systems.

Can I decrypt this with other tools?

Yes, if they use the same format: PBKDF2-SHA256 with 250,000 iterations, then salt + IV + ciphertext in Base64.

Is it secure?

AES itself is strong. Security depends on your password, so use a long, unique one and share it separately.

RSA Key GeneratorGenerate RSA public and private key pairs (2048-4096 bit) in your browser for encryption or signing. Export as PEM or JWK. HMAC GeneratorGenerate HMAC signatures with SHA-256, SHA-384, SHA-512 or SHA-1, as hex or Base64. Ideal for verifying webhook and API signatures. Bcrypt GeneratorGenerate bcrypt password hashes with a chosen cost and check passwords against existing hashes. Runs in your browser; nothing is sent.

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