Local Storage Test
Use this when preferences, sessions, or offline settings disappear after refresh.
Browser storage check
Ready to inspect browser storage.
This measures storage available to this website in your browser. It is not your SSD/HDD free-space or SMART-health status.
What happened?Choose the result you observed.
Privacy: DeviceOK writes one temporary test value and removes it immediately.
What this test tells you
This test checks
- localStorage write
- localStorage read
How to read the result
A blocked result can come from privacy mode, policy, storage pressure, or browser settings.
Passing here does not guarantee another website has the same storage permission.