GitHub Repository Social Preview Resizer
GitHub Repository Social Preview uses a 1280×640 pixel canvas. This preset exports JPG; review the source requirement and final crop before uploading.
GitHub Repository Social Preview size
GitHub Repository Social Preview size: 1280×640 px for best display, under 1 MB
GitHub accepts PNG, JPG, or GIF and supports a 640×320 minimum.
1280
width (px)
640
height (px)
2:1
aspect ratio
Need other dimensions? Browse all GitHub sizes or use the free image resizer for any platform.
Sources
We check platform-specific dimensions against source documentation when available.
- GitHub Docs — Customizing a repository social preview - GitHub recommends 1280×640 for best display and files under 1 MB.
How to resize images for GitHub Repository Social Preview?
- 1
Step 1: Upload your image
Select the photo you want to resize for GitHub Repository Social Preview. Drag and drop or click to browse. We support JPG, PNG, WebP, and HEIC.
- 2
Step 2: Automatic resizing
Apply the 1280x640 pixel preset for GitHub Repository Social Preview, then review how the image fits the target frame.
- 3
Step 3: Download and post
Review the crop and image quality, then download the resized image and upload it to GitHub.
GitHub Repository Social Preview uses 1280×640 px for best display, under 1 MB. GitHub accepts PNG, JPG, or GIF and supports a 640×320 minimum.
All GitHub Image Sizes
Choose another available GitHub canvas and review its source notes
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App Store and Developer Image Sizes
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File tools
Convert the resized image
Need a different file format or transparent background? Choose a focused converter, then check the preview and encoded size before downloading.
Put Your GitHub Repository Social Preview Image Into a PDF
Put one image on each page, arrange the order, and create the PDF in your browser.
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