WebM Viewer Online — Free Frame-by-Frame Player & Inspector | Online Gallery
Frame-by-frame precision video playback and PNG snapshot grabber. Inspect WebM VP8/VP9/AV1 video streams with frame-stepping (+/- 1 frame), playback speed controls, and high-res frame capture.
What is WebM Inspector and what does it do?
The WebM Video Inspector provides frame-by-frame precision stepping, speed scaling, and high-res frame capture.
- Step video backward and forward by 1 frame.
- Capture and download exact current video frames as PNG.
- Inspect video resolution and duration.
How does WebM Inspector work?
Controls HTML5 video element time offsets with frame calculations, drawing current frames to Canvas on demand.
100% private: all processing happens locally in your browser using client-side WebAssembly, WebCrypto, WebAudio, and HTML5 Canvas. Your files are never uploaded to any server.
Who needs WebM Inspector?
Video Editors & Animators
Examine motion keyframes and extract high-resolution stills from WebM clips.
Supported file formats
WebM Modern Media & Video Stream Viewer (.webm) opens and processes the following file extensions directly in your browser:
.webmHow to use WebM Inspector — step by step
- 1
Open WebM Video
Drop your .webm recording or clip.
- 2
Step Frames
Use frame arrow buttons to step forward or backward frame by frame.
- 3
Capture Frame
Click Capture Frame to download the exact current video frame as high-res PNG.
Frequently asked questions
Does it upload my video?
No, playback and frame grabbing happen completely inside your local browser.
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