About image resizing
Passport-photo uploads, profile pictures, marketplace listings, document portals — everything wants specific dimensions. This resizer scales any image to exact pixels or a percentage, with the aspect ratio locked by default so people and objects never look stretched. It uses stepped downscaling, the technique that keeps details smooth instead of jagged when shrinking a large photo.
How to resize an image
- Add your image — its current dimensions appear immediately.
- Type the target width or height (the other side follows automatically while the ratio is locked), or switch to percentage mode.
- Pick an output format if you need a specific one.
- Press Resize image, check the preview, and download.
Common size targets
- Passport/visa photos: often 600×600 px (check your portal's exact rule)
- Profile pictures: 400×400 px is safe almost everywhere
- Full-width blog images: 1200–1600 px wide
- Social sharing (Open Graph): 1200×630 px
Enlarging beyond the original size works but can't invent detail — expect softness past about 150%.
Frequently asked questions
How do I resize without stretching the photo?
Keep 'Lock aspect ratio' ticked — enter one dimension and the other adjusts automatically, so nothing looks squashed.
Can I make an image bigger?
Yes, up to 200% in percentage mode or any pixel size. Enlarging can't add real detail though, so expect some softness beyond about 150% of the original.
Does resizing reduce quality?
Downscaling uses stepped high-quality resampling, which keeps edges smooth and detail crisp — the standard technique for good-looking thumbnails and web images.