Reddit Banner (Desktop) Resizer4000 × 128 px
Resize any image to exactly 4000×128px for Reddit. Free, instant, and nothing leaves your browser.
- Dimensions
- 4000 × 128 px
- Aspect ratio
- 31.25:1
- Max file size
- 5MB
- Best format
- PNG
How to resize an image for Reddit
Add your image
Click Choose image or drop a file into the box above. JPG, PNG and WebP all work.
Check the crop
The preset is already set to 4000×128px. Drag inside the preview if you want to reposition the crop.
Download
Pick a format and click Download. You get a Reddit Banner (Desktop) at exactly 4000×128px.
Reddit Banner (Desktop) size at a glance
Reddit desktop banners are an extreme 4000×128 strip — one of the most constrained banner formats on any platform. Only a texture, gradient, or minimal repeated pattern works at this ratio.
Why 4000×128 matters
A customized banner distinguishes active, well-maintained subreddits from default ones. It signals community investment and professionalism.
What happens when the size is wrong
Complex imagery becomes an unreadable smear at 128px tall. Text is virtually impossible to read unless it's extremely large and bold.
Best practices
- Use a repeating pattern, gradient, or simple texture rather than detailed imagery.
- Avoid text entirely — it's too narrow to be readable.
- Test across different screen widths since the banner tiles or stretches.
Frequently asked questions
What size should a Reddit Banner (Desktop) be?
The recommended size for a Reddit Banner (Desktop) is 4000×128 pixels (31.25:1 aspect ratio). The maximum file size is 5MB.
How do I resize an image for Reddit Banner (Desktop)?
Upload your image to the resizer above. It will automatically crop and resize to 4000×128px. Adjust the crop position if needed, then download the result. Your image never leaves your device.
Which format should I use for a Reddit Banner (Desktop)?
Reddit accepts JPG, PNG. We recommend PNG — Extremely wide and narrow. Displays as a thin strip across the top of subreddit pages on desktop.
Is my image uploaded anywhere?
No. TinyResize runs entirely in your browser. The file is read from your device, resized on your device, and downloaded from your device. Nothing is sent to a server.