Encrypt a Document
AES-256 encryption — entirely in your browser. Your files never leave your device.
Drag and drop a file or folder here to encrypt it
Drop any file or entire folder to encrypt it, or drop a .dclk file to decrypt it.
Upload your Key file to decrypt
Encrypted file:
Drop your .dclkey key file here
Now drop the encrypted file
Key loaded successfully
Drop your .dclk encrypted file here
Keep your Key file safe!
Your file is the only way to decrypt. If you lose it, your encrypted files cannot be recovered.
Encrypting more files this session will reuse the same key (...).
This key has been saved to your account.
Only DocuLock can open a .dclk file
Your file is now wrapped in an authenticated AES-256-GCM envelope. No editor, viewer, or archive tool can decode it — only DocuLock (right here in your browser or inside your account) with the matching .dclkey. Send the .dclk anywhere without worrying who sees it.
This was an encrypted folder
The downloaded .zip file contains the original directory.
Decrypted with stored key:
Store it in your DocuLock vault — the home your .dclk file was made for.
Keep your encrypted file, its key, and your notes together. Open it from any device. Share it, notarize it, or sign it to the Bitcoin blockchain on paid plans.
Free — 10 documents included. No credit card.
How it works
To Encrypt
Drop any file here. Your data never leaves your browser.
A random key is generated automatically. Download both your encrypted .dclk file and the .dclkey key file.
Keep your .dclkey file in a safe place — it's the only way to decrypt.
To Decrypt
Drop your .dclk encrypted file here.
Upload the matching .dclkey file when prompted.
Your file is decrypted instantly — entirely in your browser.
