File Encrypt and Decrypt Tool
Encrypt or decrypt any file entirely in your browser. No uploads, no server.
Drop your file here or click to browse
Supports all file types (Images, PDF, Zip, etc.)
This tool uses AES-256-GCM (authenticated encryption). If the encrypted file or params file is modified, decryption will fail.
A new random IV (nonce) and salt are generated for every encryption. Never reuse the same IV with the same key.
Passphrase quality matters. Low-entropy passphrases can be brute-forced even with PBKDF2. Prefer a long passphrase.
Limitations: This implementation encrypts the full file in memory (browser API is not streaming). Very large images may be slow or fail on low-memory devices.
About File Encrypt/Decrypt
Protect your sensitive files with military-grade AES-256 encryption. Encrypt documents, images, and videos locally in your browser before sharing them securely.
Key Features
- AES-256 Encryption
- Client-side processing
- Password protection