Keep the pixels your footage actually contains
This 4K video frame extractor creates a canvas at the decoded video width and height. The preview can be smaller on your screen while the downloaded still retains the source dimensions. For a compatible 3840 × 2160 recording, that means a 3840 × 2160 image. Check the resolution badge after loading. A file that was previously resized to HD will produce HD captures, even if its file name says 4K.
Resolution is different from sharpness
A large frame can still contain motion blur, missed focus, heavy compression or noise. Before capturing, compare nearby moments where the subject slows down and the camera settles. Use PNG when you want to avoid an additional lossy image encode. It does not reverse compression in the original video, restore raw sensor data or guarantee accurate HDR color. Inspect the downloaded image at its actual size rather than judging only the smaller preview.
Work within a browser-sized batch
The extractor supports up to 8.3 million decoded pixels per frame, including UHD 3840 × 2160. It does not support 8K capture. Large PNG files use the 96 MB gallery budget quickly, so start with a few images and download before clearing the gallery. The separate 120-frame ceiling is also enforced. For long, exact-frame or color-managed exports, use a dedicated desktop decoder or editor rather than a browser sampling workflow.
Questions for this workflow
Does this extract 8K frames?
No. 8K exceeds this release’s 8.3-million-pixel capture limit. Use a desktop tool for 8K sources.
Is a PNG capture completely lossless?
PNG avoids an additional lossy image encode. Video decoding, color handling and existing source compression still affect the picture.
Continue your workflow
Read practical guides · Enlarge an image · Report a reproducible problem
Drone footage: check color and camera motion
For a DJI or other drone recording, try a stable moment after a turn or pan settles. Compare the intended building, person or landscape detail at actual image size. A high sharpness estimate for a textured landscape does not establish that the important subject is clear.
HEVC playback depends on your device, while log, HDR and wide-gamut recordings can differ from a graded editor preview. Make an H.264 SDR working copy if needed and retain the original. Captured stills are not georeferenced survey exports and do not provide mapping measurements.
Capture uses the shared frame-extractor limits: 2 GiB source, 8,294,400 decoded pixels, 120 pictures and 96 MiB retained images. Start with a short playable sample; codec support and device memory vary.