Why this tool is useful
Use this test to distinguish an unavailable browser API from a device that simply does not appear in the browser's permission-scoped Bluetooth chooser.
Browser & Privacy · runs locally
Web Bluetooth Device Visibility Test
Check secure-context Web Bluetooth support and optionally open the browser's native chooser without connecting to, controlling or retaining a device.
Ready. Your working data stays in this browser.
How it works
After an explicit click, the browser reports adapter availability and opens its own device chooser. The tool records only whether a name and temporary identifier were exposed; it never opens a GATT connection.
Practical example
Run the test on an HTTPS page, choose a nearby device you control and confirm that its display name is visible. Canceling the chooser leaves the test disconnected and changes nothing on the device.
Validation
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Privacy boundary
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Result passport
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.