Image Resizer

An image resizer changes a picture's pixel dimensions — scaling a 4000×3000 camera photo down to the 1200px a web page needs, or to the exact dimensions a form, platform or print size demands. Downscaling is the everyday direction: modern cameras produce far more pixels than most destinations use, and shipping them unresized wastes bandwidth and breaks upload limits.

The aspect-ratio lock is the tool's guardian: width and height scale together so nothing stretches. Exact-dimension targets that differ in ratio need a crop first (our Image Cropper) — resize changes size, crop changes shape.

Upload the image, set the target — exact pixels, a percentage, or a preset — and download the resized copy.

The constant use cases: web images (a hero image needs ~1600-2000px, content images 800-1200 — not the camera's 6000; resizing before upload is the single biggest page-weight fix alongside compression), email attachments (many hosts cap at 10-25 MB; a resize turns a 8 MB photo into 500 KB), upload forms with dimension or size limits (visas, applications, marketplaces), and platform assets (avatars, banners, thumbnails at their documented sizes).

Direction physics: downscaling is safe and sharpens perceived quality at the destination size; upscaling invents pixels and softens — small enlargements pass, big ones need the Image Enlarger's smarter interpolation and honest expectations. Pair resizing with compression (Image Compressor) for the full web-optimization one-two. Files are processed and returned, not kept.