Resizeimagesby pixels or percentage
Change the width and height of JPG, PNG and WebP images to exact pixels or by a percentage. Lock the aspect ratio to avoid stretching, batch resize dozens of images at once — everything runs locally in your browser, so your files never get uploaded.
Online Image Resizer
Drop images here or click to select
Multiple files supported — resized automatically in your browser
JPG • PNG • WebP — up to 30MB eachHow to resize an image
Resizing changes the pixel dimensions of an image — its width and height — without cropping away any part of it. This is different from compression, which keeps the same dimensions but lowers the file size, and from cropping, which cuts part of the picture out. You usually resize to fit a required size: a profile picture, a banner, a print, or a web layout.
This tool offers two modes.By pixelslets you type an exact width and height; with the aspect ratio locked, changing one value scales the other automatically so the image is never stretched.By percentagescales the whole image by a factor — 50% makes it half the size, 200% doubles it. Drop as many images as you like and they are all resized to the same setting in one batch.
Resize without losing quality
Shrinking an image preserves quality well because you are throwing pixels away — the result stays sharp. Enlarging is harder: the tool has to invent new pixels, which adds softness. For the best results when upscaling, keep the increase under roughly double, export as PNG (lossless) or JPG/WebP at high quality, and accept that large upscales will always look softer than the original. Resizing and then compressing gives you the smallest, best-looking file for the web.
At a glance
| Property | Detail |
|---|---|
| Modes | Exact pixels or percentage |
| Aspect ratio | Lockable (no stretching) |
| Batch | Yes — resize many at once |
| Best for | Profile pics, banners, web images, prints |
| Privacy | 100% in-browser, no upload |
Frequently asked questions
How do I resize an image without losing quality?
Resizing always re-samples the pixels, so enlarging an image adds blur and shrinking it discards detail. To keep the best quality, resize only as much as you need, export as PNG (lossless) or JPG/WebP at high quality, and avoid upscaling beyond roughly double the original size.
Can I resize an image to exact dimensions?
Yes. Enter an exact width and height in pixels. With aspect ratio locked, changing one value updates the other automatically; unlock it to set both freely (which may stretch the image).
Can I resize many images at once?
Yes. Drop as many images as you like and they are all resized to the same setting in one batch, then download each one or grab them all at once.
What's the difference between resizing and compressing?
Resizing changes the pixel dimensions (width and height). Compressing keeps the same dimensions but lowers the file size by discarding data. To get the smallest, sharpest image for the web, resize first then compress.
Is the image resizer free and private?
Yes. Resizing runs entirely in your browser with no upload, and it is free with no sign-up, no watermark and no usage limits.