AES Decryption Tool
Free online AES decryption tool. Decrypt AES-128, AES-192, or AES-256 ciphertext with CBC, ECB, CTR, OFB, and CFB modes directly in your browser. — runs 100% in your browser, client-side only. No data is sent to any server. Free to use, no account required.
Free
Client-Side
No Login
No Storage
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How to Use the AES Decryption Tool
- Paste the AES ciphertext you want to decrypt.
- Select the key size (128, 192, or 256-bit) used during encryption.
- Choose the mode (CBC, ECB, CTR, OFB, or CFB) — must match encryption mode.
- Enter the secret key and IV used during encryption.
- Click Decrypt to recover the plaintext.
All decryption runs 100% in your browser using CryptoJS.
What is AES Decryption Tool?
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