AES-128 encryption for Windows. Right-click any file to lock it instantly with a master password. No cloud. No accounts. No tracking.
Download Free for WindowsWindows 10 & 11 · 64-bit · Free
Features
Simple, powerful encryption that works right from your desktop. No technical knowledge required.
Right-click any file or folder and select “Lock with DataLocker.” Encryption starts immediately. No extra steps.
One strong password protects all your files. Minimum 10 characters with uppercase, lowercase, and numbers enforced.
A 24-character backup key generated at setup. If you forget your password, the recovery key restores access.
Escalating lockouts after failed attempts: 15 minutes, 1 hour, then 24 hours. Makes password guessing virtually impossible.
Send .locked files via WhatsApp, email, Bluetooth, or USB. The recipient needs DataLocker and the password to open them.
Everything stays on your machine. No uploads, no accounts, no internet connection required. Your data never leaves your computer.
How It Works
No configuration, no accounts, no cloud setup. Install, set a password, and start locking files.
Download and run. DataLocker adds itself to your right-click menu automatically.
Create a strong master password. Save your recovery key somewhere safe.
Right-click any file → “Lock with DataLocker.” The file is now encrypted and protected.
Security
Built on proven cryptographic standards approved by NIST and used by governments worldwide for classified data.
Every file is encrypted using AES-128-CBC with HMAC-SHA256 authentication (Fernet standard). This is the same encryption standard approved by NIST and used by government agencies for protecting classified information.
Your password never touches the disk. It is processed through PBKDF2-SHA256 with 600,000 iterations, making brute-force attacks computationally infeasible even with specialized hardware.
The original file is completely replaced by the encrypted version. No unencrypted copies, no temporary files, no traces left behind.
Use Cases
Anyone who has files that should stay private.
Protect confidential documents, contracts, financial reports, and client data on your work computer.
Secure sensitive sources, unpublished stories, and research data from unauthorized access.
Lock your personal files on family or office computers. Other users see encrypted files they cannot open.
Encrypt files before copying them to USB drives, external hard drives, or any portable storage.
Download
Free to use. No accounts. No subscriptions.
SHA-256: cf407bc64309aeea1be5d3c545a11820d66ab3e77f619ca16c36dc18db983c79
FAQ
Everything you need to know before getting started.
DataLocker uses AES-128-CBC encryption with HMAC-SHA256 authentication (Fernet standard). Your password is processed through PBKDF2-SHA256 with 600,000 iterations. This is the same encryption standard approved by NIST and used by government agencies for classified data.
During setup, DataLocker generates a 24-character recovery key. If you saved it, you can use it to reset your password and regain access. If you lost both your password and recovery key, your encrypted files cannot be recovered by anyone—that is the nature of strong encryption.
Yes. You can send .locked files via WhatsApp, email, Bluetooth, USB, or any other method. The recipient needs DataLocker installed and your master password to unlock them.
Your locked files remain encrypted. Uninstalling DataLocker does NOT unlock your files. Always unlock all your files before removing the application.
Yes. DataLocker is free to download and use. There are no subscriptions, no hidden costs, and no premium tiers.
No. DataLocker works entirely offline. Your files never leave your computer. There are no accounts, no telemetry, and no internet connection required to encrypt or decrypt files.
DataLocker supports Windows 10 and Windows 11 (64-bit). Both Home and Pro editions are compatible.