Best Format for YouTube Thumbnails (Under 2MB)
YouTube has a strict 2MB limit. How do you get high quality 4K thumbnails under that limit?
1
The Limit
YouTube rejects anything over 2MB. If you export a complex PNG at 4K, it will be 5-10MB.
2
Use JPG
Save as **JPG** at 85% quality. You will easily get under 2MB with zero visible loss.
3
Resolution
1280x720 is standard (HD). You can upload 1920x1080 (FHD) for better sharpness on TV screens.