YouTube recommends thumbnails of 1280 × 720 pixels (16:9) under 2 MB in JPG, PNG or GIF. The resizer outputs exactly that size at high JPG quality, which is normally well under 2 MB.
How to use the youtube thumbnail resizer
- Choose your image(s).
- Pick the size and how the image should fit: crop to fill, or fit inside with a background colour.
- Download the resized image, ready to upload.
Thumbnail tips
Use a close-up face, three to five large words of text and strong contrast. Check that it still reads at phone size (about 168 × 94 px in search results). Avoid placing text in the bottom-right corner, where the video length appears.
Frequently asked questions
What is the YouTube thumbnail size?
1280 × 720 pixels, minimum width 640 px, 16:9 ratio, under 2 MB.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested