USB Camera: UVC Viewer & OTG

NewSalton

In-app purchases

About this app

Use your Android phone or tablet as a portable USB camera viewer and UVC camera monitor. USB Camera brings live UVC preview, photo capture and local MP4 video recording together for compatible external webcams, USB endoscopes, borescopes, inspection cameras and USB HDMI capture cards.

Connect via USB OTG
Use an Android phone or tablet with USB Host and USB OTG support and a suitable USB-C or OTG adapter. Plug in a compatible USB camera, UVC camera or video capture device, select it in the app and grant the camera and USB permissions requested by Android to start the live video view.

Capture photos and record MP4 video
Take still photos from the live USB camera feed and record video directly to local MP4 files. Browse saved photos and video recordings in the built-in media library, play back recorded clips and export captured media when you want to keep a copy outside the app.

Flexible UVC viewer and monitor modes
Switch between full-frame display and proportional fill, or enter landscape fullscreen for focused monitoring. Use digital zoom to inspect details in the live UVC camera preview and rotate the view to match your USB endoscope or webcam mounting angle. Digital zoom enlarges the preview image; it does not add optical detail to the source video. Optionally overlay the active resolution, frame rate (FPS) and video format (such as MJPEG or YUYV), and keep the screen awake while the app is in the foreground.

Built-in connection help and diagnostics
Review the step-by-step connection guide and device diagnostics during setup. If no video appears, check USB Host / OTG support, system permissions, adapter quality, external power supply and the camera's reported UVC video modes.

Hardware compatibility notes
A compatible USB Video Class (UVC) device—such as an external USB camera, UVC camera, USB endoscope or capture card—is required. Connecting an HDMI source via USB OTG requires a USB HDMI video capture card that outputs UVC video; a standard USB-C to HDMI display-output cable or adapter cannot capture incoming video. Device and format compatibility vary by Android model, OS version, OTG adapter and camera hardware. Detecting a USB device does not guarantee that every resolution or frame rate will stream on all phones.

Supported devices and typical use cases
Designed for OTG view and external camera monitoring across standard UVC video sources (MJPEG and YUY2). Works as an endoscope camera app for an OTG endoscope, borescope camera, snake camera, pipe camera, inspection camera or USB otoscope; a digital microscope and USB microscope camera for PCB soldering and macro inspection; a webcam USB viewer; and an HDMI monitor, USB monitor or camera monitor when paired with a USB capture card, video capture card (HDMI input) or EasyCap video grabber for game consoles and camcorders.

In-app purchases
Some features or usage limits may require an in-app purchase. Review the in-app purchase screen for current options and terms before buying.

Permissions and privacy
Camera and USB permissions are used solely to open and display your selected external video device. Captured photos, recorded MP4 videos and display preferences are stored locally on your device. The app uses Firebase Analytics for app usage and stability measurement. Please read the privacy policy for details on analytics and any diagnostic reports you choose to submit.

Ratings and reviews

Identified and enabled camera right away. Settings dialog works as well. I wish it had the ability to snap photos and record video; as well as automatic stabilization. update: updated to 5 stars since the app does exactly what its name says.

does not work

doesn't work and won't let me enable OTG