Use time sampling to make a quick contact sheet
Extracting one frame every second gives you a manageable overview of a short recording. Select the file, choose the start and end time, keep the one-second interval and capture the sequence. The gallery helps you identify where a scene changes or a subject appears. Download the ZIP if you want to arrange the images in a contact sheet or a review document using another application.
Understand the interval and end boundary
Sampling starts at the selected start time and excludes the selected end. A range from 2 to 7 seconds with a one-second interval requests five images at 2, 3, 4, 5 and 6 seconds. An interval changes the requested times; it does not change the video’s source frame rate. Browser seeking can deliver a nearby decoded frame, particularly with unusual timing. Use an exact-frame decoder when that distinction matters for your task.
Choose a sequence that fits the gallery
The workspace allows up to 120 captured images and 96 MB in one gallery. One-second sampling across more than two minutes can exceed the image-count limit, and 4K PNG files may reach the byte budget sooner. Select a shorter range, increase the interval or use JPG/WebP for smaller files. Download and clear a completed gallery before starting another batch. Cancel stops the remaining requests and keeps images already captured for inspection.
Start with a short test
- Choose a compatible local video and wait for a playable preview.
- Capture one useful moment, or select a short range and interval.
- Compare the actual subject, then download an image or gallery ZIP.
The workspace accepts sources up to 2 GB and 8.3 million decoded pixels per frame. A gallery holds up to 120 images or 96 MB. Seeking depends on the browser and source timing. Keep the source, use media you have permission to process, and check a small output before starting a larger batch.
Questions for this workflow
Can I extract two frames per second?
Yes. Choose the 0.5-second interval. That is timestamp sampling, not source-frame indexing.
Does the end frame appear in the batch?
No. The end time is excluded. Capture it separately if it is a valid time you need.
Continue your workflow
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