Fix the YouTube “file too large” error
YouTube rejects thumbnails over 2 MB on mobile. This tool resizes to 1280×720 and compresses until the file fits — your image never leaves your device.
⬆️
JPG, PNG or WebP — processed on your device
Exports at 3840×2160, 1280×720 (under 2 MB), or Shorts 9:16.
Need text and templates? Open the thumbnail studio
Why exports from Canva fail
Design tools often export high-resolution PNGs that exceed 2 MB. Re-encoding as JPG at the correct dimensions usually brings a 5 MB export under 200 KB without visible quality loss at thumbnail size.
Frequently asked questions
What format should I use?
JPG is best for photos under the 2 MB limit. PNG is fine for graphics with sharp text but watch the file size.