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AES Encrypt & Decrypt

AES-GCM encryption that never leaves your browser. Processing stays on your device — no upload, no account.

How to use AES Encrypt & Decrypt

  1. Enter plaintext and a passphrase to encrypt, or paste a bundle to decrypt.
  2. Run Encrypt or Decrypt.
  3. Copy the Base64 bundle or recovered text.

Why use this free aes encrypt decrypt tool?

  • All processing happens locally in your browser. Your files are never uploaded to a server.
  • AES-256-GCM via Web Crypto.
  • PBKDF2 key derivation.
  • Salt and IV bundled in the output.

Technical details

Output format: base64(salt || iv || ciphertext). Losing the passphrase means permanent data loss.

AES Encrypt & Decrypt FAQ

Is text uploaded?

No. All processing happens locally in your browser. Your files are never uploaded to a server.

How strong?

AES-GCM with a strong passphrase is solid for personal use; threat models vary.

Wrong passphrase?

Decryption fails — you will see an error.

Files?

This tool targets text payloads.

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