Smart Resizer
ImageResize images to exact pixels or presets without quality loss.
Smart Resizer scales images to an exact pixel size or a ready-made preset without the softness you get from resizing twice. Give it a width, a height, or a percentage, and it resamples in your browser and hands the file straight back. It's the quickest way to hit an upload limit, match a podcast cover at 3000×3000, or batch a folder of photos down to a sane size — with the files never leaving your device.
Why use Smart Resizer
100% private
Your image files are processed locally and never uploaded.
Instant
No upload or download wait — it runs at the speed of your device.
Free to start
Use it free every day; go Pro for unlimited runs.
No install
Works in any modern browser. No sign-up to begin.
How to use Smart Resizer
- 1Add your images
Drop in one image or a batch — they're read locally, never uploaded.
- 2Resize by percent or exact pixels
Scale to a percentage, or give an exact width and height; the aspect ratio is preserved so nothing stretches.
- 3Download
Save the resized files, zipped automatically when there's more than one.
Frequently asked questions
How do I resize an image without stretching it?
Give a percentage, or an exact width and height — the aspect ratio is preserved either way, so the image is fitted inside the box you asked for rather than squashed to fill it. Nothing distorts unless you deliberately crop first.
Can I resize a whole folder at once?
Yes. Drop in a batch and every image is resized with the same settings, then returned as a zip with the original filenames untouched — which matters if the files are named to a convention you rely on.
Will resizing down and back up restore the detail?
No, and no tool can. Scaling down discards pixels permanently; scaling back up invents them. Always resize from the largest original you have rather than from an already-shrunk copy, and keep the original file.
What size should I use for a podcast cover or a social post?
Podcast covers are 3000×3000; common social sizes are 1080×1080 and 1080×1920. Presets cover the usual ones — and if you want every size at once from a single image, the Social Pack Exporter and Podcast Artwork Pack do exactly that.