YouTube Thumbnail Size Resizer
Use a 3840x2160 pixel, 16:9 canvas for a current YouTube custom thumbnail. YouTube accepts JPG, GIF, and PNG uploads; file-size limits differ between mobile and desktop uploads.
YouTube custom thumbnail size
YouTube custom thumbnail size: 3840×2160 px recommended, 16:9 aspect ratio, minimum width 640 px.
YouTube's upload limit is 2 MB on mobile and 50 MB on desktop for video thumbnails. JPG, GIF, and PNG are supported.
3840
width (px)
2160
height (px)
16:9
aspect ratio
Need other dimensions? Browse all Youtube sizes or use the free image resizer for any platform.
Sources
We check platform-specific dimensions against source documentation when available.
- YouTube Help - Add custom thumbnails on YouTube - Official resolution, aspect ratio, file-format, and upload-limit guidance for custom thumbnails.
Click Through Rate Impact
A thumbnail should accurately represent the video and remain understandable at small sizes. Use clear contrast, a strong focal point, and only as much text as remains readable in search and recommendation previews.
Stand Out in Search Results
YouTube search results combine the thumbnail with the title and channel information. Design those elements to work together: the image should communicate the topic without repeating a long version of the title.
Sharp on Every Device
The same source thumbnail is scaled across phones, computers, and TVs. Preview the design at a small size before uploading and keep important details away from the outer edge.
How to resize to YouTube Thumbnail size?
- 1
Step 1: Step 1: Choose the right image
Select an image that accurately represents your video content and is visually appealing. High-quality images are crucial for attracting viewers.
- 2
Step 2: Step 2: Resize the image
Resize the image to YouTube's current recommended custom-thumbnail size of 3840 x 2160 pixels (16:9).
- 3
Step 3: Step 3: Save in a supported format
Export as JPG or PNG and check the upload limit for your device: 2 MB on mobile or 50 MB on desktop.
YouTube currently recommends 3840 x 2160 pixels in a 16:9 aspect ratio, with a minimum width of 640 pixels.
All Youtube Image Sizes
Choose the recommended Youtube dimensions for your content
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