One file of any type plus a passphrase
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Security · ready
Encrypt File
Protect any file with AES-GCM encryption in your browser.
Loading local tool…
No uploadsYour files stay on this device.
Local engineYour browser does the work.
Auto cleanupTemporary memory is released.
About this tool
Use encrypt file without uploading files
Protect a local file with authenticated AES-GCM encryption before it leaves your device.
Processing takes place in your browser tab. Temporary working data is released when you leave or reload the page.
Three steps
- Choose the file to protect and enter a strong passphrase.
- Encrypt the file and store the resulting protected download.
- Keep the passphrase separately; it cannot be recovered by Filemazing.
Useful for
Common encrypt tasks
- Private backups
- Sensitive transfers
- Personal document storage
Practical details
What to know before you start
One Filemazing encrypted file
- There is no password recovery or server-side backup.
- Send the passphrase through a channel separate from the encrypted file.
- Test decryption before relying on the protected copy as your only backup.