Media Capabilities Check
Inspect camera and microphone access, device enumeration, and codec support.
What this tool checks
It lists available cameras and microphones and tests codec support.
These capabilities affect real‑time calls and playback quality.
Why it matters
Missing permissions can break calls or hide devices from apps.
Codec mismatches can force lower quality or fallbacks.
How to interpret results
If no devices appear, check permissions and OS privacy settings.
Compare codec support across browsers if playback fails.
Privacy considerations
Enumerating devices can leak hardware details.
Use ask‑to‑allow permissions and revoke old grants.
Common causes
Enterprise policies can disable cameras or microphones.
Some browsers restrict device labels until permission is granted.
Limitations
Results differ by OS and browser implementation.
Virtual devices may appear in cloud or remote environments.