How to resize an image to 512x512
- Choose or drop your images above.
- Keep “Crop to fill” for an exact 512x512 result, or pick “Fit inside” to avoid cropping.
- Download the resized files individually or as a ZIP.
About 512x512 pixels
A 512x512 image is square, with an aspect ratio of 1:1, and holds 0.26 megapixels. At 300 DPI it would print at about 1.7 x 1.7 inches (4.3 x 4.3 cm). As a JPEG it usually lands between 29KB and 58KB, depending on the picture and the quality you choose.
Where 512x512 is used
The size needed for Google Play listing icons and many web app manifests, and a good source size for avatars.
- Check the result at its real size, not zoomed in, before you use it.
- Use a simple, bold design with a transparent background. Fine detail disappears at small sizes.
- Save icons as PNG so edges stay sharp. Use JPG only for photo avatars.
Crop to fill or fit inside?
Crop to fill always gives exactly 512x512 by trimming the edges that do not match the shape. Fit inside keeps the whole picture and scales it so neither side exceeds 512x512, which can leave one side shorter. For a typical 4:3 phone photo, crop to fill removes about 25% of the picture. A 3:2 camera photo loses about 33%, a 16:9 screenshot about 44%, and a square image about 0%.
Quality and format
Check the result before you upload
Open the finished file and check three things: the picture measures 512x512, the subject is not cut off, and the file is small enough for where you upload it. If a platform sets a size limit, run the result through the online compression tool or choose a limit such as 200KB.
A tip for this size
Start from a large original and use PNG so edges stay crisp. Need another size? Try 500x500, 600x600, 400x400, the general image resizer, or browse every size preset.
Frequently asked questions
Why is my image not exactly 512x512?
You are probably using Fit inside, which never crops. Switch to Crop to fill for exact dimensions.
How big will a 512x512 file be?
As a JPEG, usually between 29KB and 58KB. Photos with lots of fine detail come out larger, and simple graphics smaller. Lower the quality for a smaller file.
Is 512x512 the right size for app store icons, PWA icons and avatars?
It is a widely used size for app store icons, PWA icons and avatars, but platforms and agencies change their rules. Check the current guidelines before you upload.
Will detail survive at 512x512?
At small sizes fine detail disappears. Crop in close on the main subject and use a simple, high-contrast picture for the best result.