YouTube Thumbnail Resizer
Resize a thumbnail to YouTube's 1280 by 720 size locally in your browser, with no upload required.
Runs in your browser. Your files are not uploaded anywhere. No signup required.
This tool processes files locally in your browser using the File API. Select or drag a file below to get started.
Common presets
YouTube thumbnail: 16:9 thumbnail size ยท Small 16:9 preview: Smaller preview image
YouTube Thumbnail Resizer runs locally in this browser. Large files may take longer depending on your device memory and browser limits.