DocomintImage Resizer
Resize JPG, PNG, or WebP images to exact dimensions, entirely in your browser.
Drop your images here
or choose a file from your device
What is a Image Resizer?
Resizing is for matching a specific pixel requirement — a profile photo that needs to be exactly 400x400, a product image capped at 1024px wide by a marketplace's upload rules — rather than just shrinking a file's byte size, which is what Image Compressor does instead.
How to use the Image Resizer
- Add one or more images
- Set the target width and height
- Download the resized image(s), on your device
Example
Resizing a 4000x3000 camera photo to a target width of 1200px scales it proportionally to 1200x900, keeping the original aspect ratio unless you explicitly set both dimensions independently.
Frequently asked questions
Is my image uploaded anywhere?
No — Image Resizer runs entirely in your browser using JavaScript/WebAssembly. Your image is never sent to a server.
Is there a file size limit?
Free use covers files up to 100MB per file; signing up for Pro raises that to 500MB.
Does resizing to smaller dimensions also reduce the file size?
Usually yes, since fewer pixels generally means less data — but if file size specifically (not just dimensions) is the goal, pair this with Image Compressor for a more predictable reduction.
Can I stretch an image by setting width and height independently instead of keeping the aspect ratio?
Yes — locking the aspect ratio is the default so images don't distort, but you can unlock it and set both dimensions independently if you specifically need a stretched result.