Frequently Asked Questions
Everything you need to know about protecting your files with FileLocker.
File Protection & Privacy
Are my files uploaded to your servers?
No. FileLocker processes your selected files locally in your web browser rather than uploading them to a FileLocker server. If the page and required resources are already loaded, processing can continue without an active internet connection.
What happens if I forget my password?
If you forget your password, your file cannot be recovered. Because we do not use servers or accounts, we do not have a copy of your password or your file. Please keep your passwords safe.
Is there a limit on file sizes?
FileLocker is designed to process large files by using browser storage and streaming APIs rather than loading the entire file into memory at once. The practical limit depends on browser support, available storage space, device resources, and the file being processed.
Can I open my protected files on a Mac or Phone?
FileLocker requires a browser that supports the File System Access API. Support varies by browser, operating system, and feature, so check compatibility in the browser you plan to use before relying on it to protect or unlock a file.
Why is my file saved as a .vault file?
The .vault extension is simply our way of identifying that the file has been encrypted by FileLocker. It contains your scrambled file contents plus some cryptographic metadata (like a salt and a nonce) required to unlock it later. When you unlock the file, it will be restored to its original format (e.g., .pdf, .mp4).