Video cover FAQ: glitches, formats, sharpness
What to do if the frame is black or corrupted, PNG vs JPEG, and how this differs from trimming.
Black or glitchy frames often mean the decoder has not settled — wait after seeking, try another time, or use Chrome/Edge.
JPEG is smaller for covers; pick PNG when you need lossless edits.
This tool only exports an image; use a cutter if you need to trim the video.
Download promptly — refreshing clears temporary results.