This page provides online file encryption and decryption functionality, you can use it to encrypt important files.

Usage

1. Select the file to be encrypted and set a strong password
2. Click the "Encrypt" button and wait for the encryption process to complete.
3. Download the encrypted file and keep it safe.
4. When decrypting, select the encrypted file, enter the same password, and then click the "Decrypt" button.

Security Assurance

• Offline Operation: This tool uses JavaScript to perform encryption and decryption locally in your browser without uploading your files and passwords to any server, ensuring data security.
• High-strength Encryption Algorithm: Uses AES-CBC 256-bit symmetric encryption algorithm and uses PBKDF2 key derivation function to enhance security.
• Open-source Verifiable: You can view the source code of this page or monitor network activity by pressing F12 to open the console to verify its security.

Notes

• Please remember the password you set. If you lose your password, it cannot be recovered, and you will not be able to decrypt the file.
• For security purposes, it is recommended that you do not use regular passwords.

Common Questions

Q: Can encrypted files be decrypted using other tools?

A: Yes, the encryption algorithm used by this tool is compatible with OpenSSL. You can use the OpenSSL command-line tool to decrypt.

Q: Can I use this tool offline?

A: Absolutely! You can use this page even when your network is disconnected.