File Decryptor
Decrypt AES, RSA, and other encrypted files locally
Try it — verify decryption end-to-end
Download a sample encrypted file below. Then: select AES-GCM, upload the file, leave IV/Nonce empty (it’s embedded), enter the password and click Decrypt.
Drag & drop or click to upload
Encrypted File
What is File Decryptor?
File Decryptor uses the Web Crypto API to decrypt files encrypted with AES-GCM, AES-CBC, or RSA-OAEP. Your files and keys never leave your device, so you can safely open encrypted attachments or archives.
How to use
- Upload the encrypted file and select the encryption algorithm that was used (AES-GCM, AES-CBC, or RSA-OAEP).
- Enter or paste the decryption key (password for AES, private key for RSA). For AES, provide the IV/nonce if required.
- Click Decrypt and download the decrypted file. The tool shows progress for large files and verifies integrity automatically.
Result
A security researcher receives an AES-256-GCM encrypted report via email, uploads it along with the shared passphrase, and decrypts the PDF in seconds — all without any server involvement.
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