Resizing: the Most Under-Rated Optimization
A 4000×3000 phone photo displayed in an 800px blog column wastes 93% of its pixels — and its kilobytes. Resizing to actual display dimensions is the single biggest size win available for most images, before any compression is even applied. This image resizer handles it precisely: exact pixels for requirements, percentages for quick scaling, aspect-ratio lock so nothing gets distorted.
Common Target Sizes
| Use case | Typical size |
|---|---|
| Form photo (with KB limit) | 200×230 – 400×500 px |
| Profile picture | 400×400 – 800×800 px |
| Blog/content image | 800–1200 px wide |
| Marketplace product photo | 1000×1000 – 1600×1600 px |
| Full-width hero image | 1600–1920 px wide |
| Email-friendly photo | 600–800 px wide |
Fit vs Exact — How the Aspect Lock Works
With aspect ratio locked (default), entering width and height scales the image to fit inside that box without distortion. Enter only one dimension and the other follows automatically. Unlocked, the image is stretched to your exact numbers — occasionally needed for strict form requirements that don't match your photo's proportions (consider cropping first for better results).
Resize First, Then Compress
The professional order of operations: resize to display dimensions here, then compress with the image compressor or fit a hard limit with compress to 50 KB. Resizing removes pixels; compression removes redundancy in what remains — together they routinely cut 95%+ from camera originals.