Platform resize preset
Resize image for YouTube Thumbnail
Use this preset to start with 3840 x 2160 for YouTube Thumbnail. Your image stays on your device, and you can adjust the width, height, format and target size before processing.
- Your image stays on your device
- No upload required
- Manual controls stay editable
Private platform preset
Prepare YouTube Thumbnail
Starts with 3840 x 2160. You can still change dimensions, target size and format before processing.
Advanced size range
Use this only when a form requires your image to be between two file sizes.
Resize image
Manual dimensions
Enter a width, a height, or both. No crop or fill is applied in this step.
Choose an image to preview planned dimensions.
Aspect ratio is off. Exact width and height may distort the image.
Selected image
Ready to compress
- Original size
- -
- File type
- -
- Output format
- Auto recommended
- Dimensions
- -
- Planned output
- Original dimensions
- Target
- Under 1024 KB
Checking the image safely in your browser.
Verified result
Your image is ready
Safely below your selected limit.
- Dimensions
- Output format
- Reduction
- Target status
- Private metadata
- Checking
The downloaded file was created and verified entirely in this browser.
Preset details
YouTube Thumbnail settings
This preset helps resize to the recommended dimensions from reviewed source data. It does not silently crop, and platform acceptance is never guaranteed.
Visible preset values
- Dimensions
- 3840 x 2160
- Aspect ratio
- 16:9
- Output format
- JPG
- Mode suggestion
- fill-or-crop
Source and review
- Confidence
- Official source
- Researched
- 2026-07-23
- Reviewed
- 2026-07-23
What this preset does
Official current recommendation is 3840 x 2160 with minimum width 640 and 16:9 aspect ratio. Classic 1280 x 720 is common but should not be used as the primary official preset without explaining the difference.
Platform requirements can change. Always preview before uploading.
What it cannot guarantee
If exact aspect ratio requires crop-aware positioning, you may need the future crop-aware preset workflow. This proof resizes with editable manual controls and does not silently crop your image.
Platform requirements can change, and CompressImageTo is not endorsed by or affiliated with YouTube.
Private by default
Your files stay private - even from us. Your image stays on your device. No upload required. We do not see or store your image.