🔓 AES Decrypter
Decrypt AES-256-CBC encrypted data using your password. Supports Base64 ciphertext and file decryption. Fully client‑side – your data never leaves your device.
ℹ️ How to use
- Enter the same password used during encryption
- Paste the Base64 ciphertext or upload a file containing it
- Click "Decrypt Data" to reveal the original message
- Results can be copied
This tool uses AES-256-CBC with PBKDF2 (100,000 iterations). Format: salt(16) + iv(16) + ciphertext → Base64.
📖 How to Use AES Decrypter (Step by Step)
- Step 1: Enter the password that was used to encrypt the data.
- Step 2: Paste the Base64 ciphertext into the text area OR upload a file containing the Base64 data.
- Step 3: Click "Decrypt Data" – the tool decrypts locally using Web Crypto API.
- Step 4: The decrypted plaintext appears in the result field.
- Step 5: Copy the result using the "Copy Decrypted" button.
💡 Security & Privacy
- ✔️ All decryption happens in your browser – no data is uploaded to any server.
- ✔️ Uses AES-256-CBC with PBKDF2 key derivation (100,000 iterations).
- ✔️ Compatible with standard AES encryption tools (salt+IV prepended).
💡 Pro Tip: Always use a strong, unique password. The decrypted output can be copied to a file or used directly. This tool never stores any data.
🔒 100% client‑side • Your data never uploaded • AES-256-CBC • Zero tracking