Free tool
Resize your thumbnail to the right format
Turn any image into a thumbnail at 1280 × 720, 1080 × 1920 or 1024 × 1024, and check the file stays under YouTube's 2 MB limit. Runs in your browser.
Your image stays on your device.
How to convert an image to a thumbnail
- 1
Drop your image or click to choose a file.
- 2
Pick the target format, then Fill (crop to fill the frame) or Fit (keep the whole image).
- 3
Download the result as a JPG, optimized to stay under 2 MB.
What is the best size for a YouTube thumbnail?
1280 × 720 pixels, in 16:9, with a minimum width of 640 pixels. The file must be under 2 MB.
What size is a Shorts, TikTok or Reels cover?
1080 × 1920 pixels, 9:16. Keep faces and text in the center: each app overlays buttons and captions on the edges.
Will resizing reduce quality?
Scaling down keeps the quality. Scaling up a small image cannot add detail: start from the largest source you have.
How do I turn an image into a YouTube thumbnail?
Drop the image above, pick YouTube · 1280 × 720, then Fill to crop it to 16:9 or Fit to keep the whole picture. Download the JPG and upload it in YouTube Studio, in the video's details.
Need a better thumbnail than the one you have?
Fleekio generates YouTube, Shorts, TikTok and Instagram thumbnails with your face, on your own API keys.
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