How to test
- Connect the capture card and an active HDMI source.
- Start the local video preview and select the UVC input.
- Enable audio separately if required, then use Jemdo Capture Studio for recording.
Free, local and zero install
USB capture card browser preview
Quickly confirm whether a standard UVC capture card is visible and delivering frames. The browser preview is intentionally smaller than the full Jemdo Capture Studio workflow.
Video and optional audio stay local. Device identifiers and media are not uploaded or stored.
Loading local tester
What it checks
- Local UVC preview
- Video and audio input selection
- Actual resolution and frame cadence
- Local snapshot
- Jemdo Capture Studio handoff
Frequently asked questions
Which capture cards work in a browser?
Cards exposed by the operating system as standard UVC video inputs can usually preview. Proprietary drivers and protected video cannot be accessed by the page.
Does this replace Jemdo Capture Studio?
No. The web tool is for quick preview and signal checks. The client adds recording, native device recovery, format control and production workflows.