Video Frame Studio
Scene detection frame capture with watermark
Scene detection frame capture with watermark Runs locally in your browser
About the
Video Frame Studio is a complete screenshot workstation for video, running entirely in your browser. Beyond manual frame grabbing, it detects scene changes automatically so you can sample every cut in a clip, builds contact sheets in a grid, stamps timecode watermarks, and can even capture frames at the exact timestamps listed in an SRT file.
Everything runs locally through the browser's own video decoding. Nothing is uploaded, which matters when the footage is client work or unreleased material. Captured frames come out at the video's native resolution and can be downloaded individually or as a ZIP.
It is built on the open-source Pilko Frame Capture Studio (MIT License) and embedded here so you get the full workstation without leaving Toolbox Hub.
Where people use the
- Building a contact sheet to review a long video quickly.
- Capturing one frame per scene for a storyboard or edit list.
- Indexing a subtitled video visually via SRT timestamps.
How to use the
- 1
Drop in a video
Any format your browser can play. The studio loads it locally and shows the duration.
- 2
Choose a capture mode
Manual: scrub and grab. Auto: scene detection samples every cut. Contact sheet: grid layout. SRT: capture at subtitle timestamps.
- 3
Adjust output
Set the image format, watermark options and grid density before capturing.
- 4
Download
Save frames individually or as a ZIP archive.
Tips and best practices
- Scene detection works best on edited content with hard cuts.
- Use the watermark option when sharing frames for review.
Frequently asked questions
What is scene detection?
The studio analyses frame-to-frame differences and captures a still at each significant change, so a multi-scene clip yields one image per scene automatically.
What is the SRT mode for?
It reads timestamps from a subtitle file and captures a frame at each one. Useful for building a visual index of a video that already has subtitles.
Is the video uploaded?
No. Decoding happens through the browser's video element and canvas. The file never leaves your device.
What resolution are the frames?
The video's native resolution, up to what your device can decode. A 1080p video gives 1080p frames.