Open the Change Image Dimensions tool, add up to 30 images, set your options below, press Convert All and download — the whole job runs on your device, so it is free, private and takes seconds.
Step by step
Load the Change Image Dimensions page. Nothing installs and nothing signs in — the editor appears immediately, ready for files.
Drag files onto the drop zone, click to browse, or paste from the clipboard. You can load up to 30 at once for a batch job.
Type a width and height in pixels, or a percentage. Leave "lock aspect ratio" ticked so the other dimension follows automatically and the image never stretches.
Press Convert All. Because everything runs on your device, a whole queue of photos finishes in a few seconds.
Save each result individually, or grab the entire batch as a single ZIP. Originals are never modified.
Settings that matter
| Width × Height | In pixels, or as a percentage of the original. |
|---|---|
| Lock ratio | On by default so images never stretch. |
| Resampling | High-quality resampling keeps downscales sharp. |
Pro tips & common mistakes
- Downscaling is where quality is won — shrinking a big photo looks great; enlarging a small one always softens it.
- Use "sharpen after resize" on big downscales to counter the slight softness resampling introduces.
- Batch it: up to 30 files per run beats doing them one at a time.
- Keep originals for anything critical — the tool never touches the source file, but always keep your master copy.
Guides & tools for Image Resizer jobs
Prefer the reference view? The full Change Image Dimensions tool page, the Image Resizer collection and the image format guide are linked throughout.