Image ToolsRuns in your browser
Image Resizer
Resize images to exact pixel dimensions or by percentage.
About Image Resizer
Upload forms with a maximum width, profile pictures that need to be square, thumbnails that must be exactly 1280×720 — resizing is one of those jobs that should take five seconds. Enter a width, a height, or a percentage, and the resizer scales your image using high-quality browser resampling. Aspect ratio is locked by default so nothing gets stretched, and you can unlock it when a layout genuinely needs an exact box. Enlarging past the original size is allowed but will always look soft — there is no extra detail to recover.
How to use Image Resizer
- 01
Upload an image
Drop a JPG, PNG or WebP file into the upload area, or click to browse.
- 02
Set the new size
Type a width or height in pixels, or switch to percentage mode. With "Keep aspect ratio" on, the other dimension follows automatically.
- 03
Check the preview
The preview shows the resized result along with its dimensions and estimated file size.
- 04
Download
Save the resized image. The original on your device is untouched.
Features
- Resize by exact pixel width and height
- Resize by percentage of the original
- Lock aspect ratio to avoid distortion
- Common presets for social, web and print sizes
- Live preview with the resulting dimensions and file size
- Choose the output format and quality
Frequently asked questions
Everything people ask about the Image Resizer.
Making an image smaller is safe and usually looks sharper than the original at that size. Making it larger stretches the pixels you already have, so a 200% enlargement will look soft — there is no extra detail to recover.
Leave "Keep aspect ratio" enabled and set only one dimension. The other one is calculated for you, so the image is never squashed.
Yes — add multiple files and the dimensions you set are applied to each of them. With aspect ratio locked, each image is scaled to fit within the size you specify.
Resizing scales the whole image to new dimensions and keeps all the content. Cropping cuts away part of the image to change its shape. Use the Image Cropper if you need an exact aspect ratio without squashing.
Yes, completely. There is no account to create, no trial that expires, no watermark on the output and no feature held back behind a paywall. The site is supported by unobtrusive advertising, not by charging you.
No. Image Resizer runs entirely inside your browser, so your files never leaves your device. You can confirm this by opening your browser's network tab — there is no upload request.
Yes. Because processing happens locally, there is no copy of your data on any server to leak, subpoena or lose. Nothing is logged and nothing is stored.
Yes. The interface is built mobile-first, with touch-friendly controls and layouts that adapt to small screens. Everything that works on a desktop works on a phone.
Once the page has loaded, yes. All processing is local, so you can carry on working if your connection drops.
Any current version of Chrome, Edge, Firefox, Safari or Opera, on desktop and mobile. If something behaves oddly, updating your browser resolves it in almost every case.
There is no server-side limit because nothing is uploaded. Files up to about 50 MB are comfortable on a typical device; beyond that, processing speed depends on your machine's memory.
Yes. Whatever you produce here is yours — use it in client work, products, packaging or publications. There is no watermark, no licence to accept and no attribution required.
No. There is nothing to keep: your data is never transmitted, and it is cleared from memory as soon as you close or reload the page.
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