File Encryptor & Decryptor
Cryptography & SecurityEncrypt and decrypt files client-side using military-grade AES-256-GCM. 100% private, zero server uploads.
What is File Encryptor & Decryptor?
Military-grade, zero-knowledge client-side file encryption and decryption powered directly by your browser's Web Crypto API (SubtleCrypto). Protect any file format with AES-GCM 256-bit encryption and PBKDF2 key derivation. Your files and passwords never touch an external server.
How to use File Encryptor & Decryptor
3 simple steps to complete your task directly in your browser:
Choose Mode & Select File
Select either 'Encrypt' to lock a file or 'Decrypt' to unlock an existing .enc file. Drag and drop any document, image, video, or archive.
Set a Secure Master Password
Enter your confidential password. The tool uses PBKDF2 with SHA-256 and 100,000 iterations to derive a cryptographically strong 256-bit key.
Instant In-Memory Processing
The browser generates a unique random 16-byte salt and 12-byte IV, encrypts the file data in memory with AES-GCM, and produces an authenticated binary container.
Common uses
- Safeguard tax documents, medical records, and legal contracts before uploading to public clouds (Google Drive, Dropbox).
- Securely share sensitive project files, passwords, or database backups over email or messaging apps.
- Comply with privacy regulations (GDPR, HIPAA) by encrypting customer data client-side before transport.
- Lock personal archives and private media on shared or portable thumb drives without installing proprietary software.
Why choose VersaTools
100% private
Your files are processed inside your browser and are never uploaded to a server.
Free, no account
No sign-up, no watermark, no paywalled “premium” tier. Just open a tool and use it.
Instant
No upload, no queue, no server round-trip — work starts the moment you drop a file.
Runs in your browser
Built on open web standards. Works on any modern desktop browser, nothing to install.
No upload size caps
Nothing leaves your device, so there’s no server file-size limit — only your machine’s memory.
Yours to keep
Results download straight to your device in clean, standard file formats.