Video Thumbnail Generator
Create a thumbnail or a contact sheet that previews a whole video.
Drop your video here
MP4, MOV, WebM, MKV, AVI…
px
Click a thumbnail in the sheet to download that frame in full resolution.
● Your video is processed locally in your browser and never uploaded. Large files need a recent computer with enough memory.
How it works
The tool samples evenly spaced frames across the video (skipping the very first and last seconds, which are often black) and lays them out in a grid with timestamps — a “contact sheet” that summarizes the whole video. Click any cell to save that frame at the video's full resolution, for example as a YouTube thumbnail base.