KlyveroBrowser Test
Understand usable browser capabilities without surprise prompts.
What can this browser expose?
These checks request no camera, microphone, sensor, clipboard or sharing permission. Storage probes use temporary, unique names and request cleanup.
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
How to use this test
- Run bounded capability and storage-operation checks without granting media permissions.
- Review API presence separately from successful operation.
- Use a related test for a user-initiated operational check.
How it works & what results mean
How the test works
Understand usable browser capabilities without surprise prompts. It uses Per-check feature detection plus minimal safe runtime probes. The workspace shows observations from this browser or asks for your own confirmation.
Understanding your result
API exposure, a successful operation and real hardware availability are separate facts. Optional APIs may be absent by design. Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version Missing data, blocked permission and an operation that could not run are shown separately. None establishes a hardware fault.
What you can inspect
Browser Test
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
WebGL Support
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
WebGL2 Support
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
WebGPU Support
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
WebAssembly Support
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
JavaScript Support
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Local Storage
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
IndexedDB
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Service Worker
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Web Worker
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Media APIs
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Gamepad
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Touch
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Fullscreen
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Picture-in-Picture
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Clipboard
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Secure Context Check
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Permissions API Availability
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Reduced Motion Preference
Presence, policy, permission and successful runtime operation reported separately; verify exact browser/version
Keep checking
Related tests
About this test & common questions
how to check browser API support online?
This browser capability test lists exposed web features and API support. Use the browser feature test to understand which checks may be available in this environment.
does browser API support guarantee an operation works?
An exposed API does not guarantee permission or a successful operation. Results apply to this browser context, not every browser or website.