Image Resizer
Change the width and height of an image, exactly or by percentage.
Drop images here
Or choose files, or paste a screenshot. They are read on your device and never uploaded.
Resizing on your device…
That didn't work.
Your images never leave your device.
Keyboard shortcuts
- / or ⌘K
- Search every tool
- ⌘↵
- Run this tool, from anywhere on the page
- ⌘S
- Download the result
- ?
- Open and close this list
About the Pathine Image Resizer
The Image Resizer changes an image's pixel dimensions — the actual width and height, not just how large it appears on a page. Give it a width, a height, or a percentage, and it redraws the picture at that size.
It runs on the canvas in your browser, with smoothing set to high so that shrinking a photo by a large factor does not come back jagged. Nothing is uploaded, so there is no queue and no file size limit beyond your own device's memory.
With the ratio locked, the numbers you type are treated as a box to fit inside rather than an exact size. That is what you want when a batch contains both portrait and landscape shots — the alternative is half of them coming back stretched.
When you'd reach for it
An upload that demands exact dimensions
Marketplaces, job boards and CMS uploaders often insist on a specific size and reject anything else without saying why. Type the number they asked for and the picture comes back at it.
Photos straight off a phone
A modern phone camera produces images far larger than any web page needs. Scaling to 50% or to 1600 pixels wide usually loses nothing visible and cuts the file dramatically.
A set of images that must match
Product shots, team headshots and gallery thumbnails look wrong at mixed sizes. Drop the whole set in at once and they all come out to the same rule.
Social and preview images
Link previews want roughly 1200 × 630, and square posts want 1080 × 1080. Both are presets here, so you do not have to remember which is which.
How to resize an image
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Add your images
Drop them on the tool, paste from the clipboard, or choose files. Several at once is fine — they are all resized by the same rule.
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Say what size you want
Switch between exact dimensions and a percentage. Leave either the width or the height empty and it will be worked out from the other, so the proportions stay right.
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Or pick a preset
The common sizes are one tap: square 1080, 1920 × 1080, the 1200 × 630 social preview, or a plain width like 800.
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Download
One image downloads directly; several come back as a zip. Your settings are remembered for next time.
Common questions
What's the difference between resizing and compressing?
Resizing changes the pixel dimensions — a 4000-pixel-wide photo becomes 1200 pixels wide. Compressing keeps the dimensions and reduces the file size by storing the same picture less precisely. Resizing usually saves far more, because you are genuinely throwing away pixels.
Will resizing make my image blurry?
Making an image smaller is safe and generally looks sharper than the original at its new size. Making it larger cannot invent detail that was never captured, so scaling well beyond 100% will look soft no matter which tool you use.
Why did my image come back smaller than the size I asked for?
With “lock ratio” on, your width and height describe a box and the image is fitted inside it, so one dimension usually ends up under the number you typed. Turn the lock off to force exact dimensions — at the cost of stretching the picture.
Does it keep my file format?
Yes. A JPG stays a JPG and a PNG stays a PNG. If you want to change format as well, run the result through the Image Converter.
Are my images uploaded anywhere?
No. The resizing happens in this browser tab using the canvas API. You can disconnect from the internet and it still works.
Can I resize many images at once?
Yes — up to 30 at a time. Percentage scaling suits mixed sizes best, since each image is scaled relative to itself rather than forced to one shared number.