Thumbnail Size
YouTube recommends 1280 x 720 with a 16:9 ratio and a minimum width of 640 pixels for custom thumbnails.
Resize YouTube Images Online
Resize YouTube thumbnails, Shorts images, and channel branding assets with the right YouTube image size, YouTube thumbnail size, and banner dimensions.
Upload image
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Ready to publish?
After social resizing, compress the file, convert the format, or reuse the same image for another platform.
Compress Image
Reduce file weight for web, email, upload limits, and sharing.
Open tool
Convert to JPG
Create lightweight photo files with broad compatibility.
Open tool
Convert to WebP
Use a modern web format that often stays sharp and small.
Open tool
Resize Image
Set exact dimensions before publishing, uploading, or sending.
Open tool
Crop Image
Refine framing and remove extra space around the subject.
Open tool
Quick YouTube Size Guide
If you need the key numbers fast, start here. YouTube thumbnail size is still 1280 x 720, Shorts work best in 1080 x 1920, and channel banner design should be planned around a 2560 x 1440 canvas with a safe center area.
Banner Size
Recommended banner size is 2560 x 1440. Keep important text and logos inside the safe center area because YouTube crops banners differently across devices.
Shorts Ratio
1080 x 1920 is the simplest vertical size for Shorts-related artwork and mobile-first YouTube assets.
How to Resize Image for YouTube
Upload the source image, choose the right YouTube preset, and export the final file. Use the thumbnail preset for standard video artwork, the Shorts preset for vertical assets, and the banner preset when you are preparing channel branding. If framing needs to change, open Crop Image first. If the result is still too heavy, finish with Compress Image before upload.
Best Aspect Ratio for YouTube
For classic YouTube thumbnails and banner logic, 16:9 remains the strongest baseline. For Shorts, vertical 9:16 is the better match. If you cross-post visuals across multiple social channels, compare results with Resize Instagram and Resize TikTok so your workflow stays consistent across platforms.
Build a Better Creator Workflow
A YouTube resize tool becomes much more useful when it sits inside a broader creator stack. Prepare thumbnails here, continue into Instagram resize and TikTok resize for distribution, then use image compression when you need lighter assets for publishing and collaboration.
How it works
1
Upload Image
Choose the image you want to prepare for a YouTube thumbnail, Shorts asset, or banner workflow.
2
Pick Preset
Select the YouTube format you need, from thumbnail size to Shorts vertical dimensions and channel banner art.
3
Download
Export the resized image immediately so it is ready for YouTube upload or channel branding work.
Frequently Asked Questions
YouTube Help recommends custom thumbnails at 1280 x 720 with a minimum width of 640 pixels and a 16:9 aspect ratio. That is the safest working size when you want a thumbnail that fits YouTube players and previews cleanly.