Resize Image

Resize Image is a free, browser-based tool that changes the pixel dimensions of a photo or graphic. You give it a target width and height - or a percentage to scale by - and it redraws the image at that size, producing a new file you can download. It works with common formats like JPG, PNG, and WebP.

Everything runs locally in your browser. When you add a file, it is decoded and redrawn on your own device using JavaScript - it is never uploaded to a server, never stored, and never seen by anyone but you. That makes it safe for personal photos, ID scans, product shots, screenshots, and anything else you would rather not hand to a third-party website.

Resizing is about dimensions, not just weight. A undefinedxundefined photo from a phone is far larger than a website or form needs; scaling it down to, say, undefinedxundefined makes it load faster and fit where it needs to go. The result opens in every image viewer and editor, keeps its format, and is ready to upload, email, or drop into a document.

The usual reason is a size requirement somewhere else. Web forms and job portals ask for a photo within specific pixel dimensions, marketplaces want product images at a set width, forums and avatars cap the size, and a full-resolution camera image is almost always too big for any of them. Resizing brings the picture down to exactly what the destination expects.

An online tool means you do not need Photoshop, GIMP, or any desktop app installed. You open a web page and drop in a file - handy on a work laptop where you cannot install software, or on a phone where editing apps are clumsy. Because this tool runs entirely in the browser, it also avoids the biggest drawback of most "online" resizers: uploading your private image to someone else's server.

Smaller dimensions also mean smaller files, which load faster on the web, sync quicker to the cloud, and use less storage. If you are preparing many images for a site or a gallery, resizing each one to a consistent size keeps the layout tidy and the page fast.

1. Add your image. Drag it onto the drop zone or click to browse. It loads and is processed on your device immediately.
2. Choose pixels or percentage. Enter an exact width and height when you have a target size to hit, or set a percentage (like undefined%) to scale down proportionally without doing the math.
3. Keep the aspect ratio locked. With the lock on, changing width updates height automatically so the image keeps its proportions and does not look squashed or stretched.
4. Resize and review. Run the resize, then check the preview at the new dimensions to make sure it still looks crisp.
5. Download. Save the resized file to your device.

If you only need part of the picture at a smaller size, crop the image first to frame it, then resize. And if the file itself is still too heavy after resizing, run it through Compress Image to shave off more kilobytes.

• Uploads and forms. Fit a photo into the exact pixel dimensions a job portal, visa application, or web form demands.
• Websites and blogs. Scale down camera images to a sensible display width so pages load fast and images do not waste bandwidth.
• Social media and avatars. Size profile pictures, headers, and thumbnails to the dimensions each platform expects.
• E-commerce listings. Make product photos a consistent width so your storefront looks uniform.
• Email and messaging. Shrink oversized images so they attach and send without hitting limits.
• Documents and slides. Bring an image down to fit neatly in a report, presentation, or PDF without bloating the file.

Many workflows chain steps together: crop to frame the subject, resize to the target dimensions, then compress to trim the final file size.

• Scale down, not up. Making an image smaller keeps it sharp; enlarging it past its original size adds no real detail and looks soft. Start from the highest-resolution original you have.
• Keep the aspect ratio. Leave the lock on unless you truly need a fixed width and height, so the image does not stretch. If you need a different shape, crop instead of distorting.
• Know your target size. Check the exact width and height the destination wants before you resize, so you get it right the first time.
• Keep the original. Resizing down discards pixels; save the source file in case you later need a bigger version.
• Pick the right format. Keep photos as JPG or WebP and graphics with sharp edges or transparency as PNG when you export.
• Resize before compressing. Change the dimensions first, then compress once at the end so you are not re-encoding an already-compressed file.

Yes. This tool does the entire job inside your browser tab. Your image is read into memory on your own device, redrawn at the new size there, and handed straight back to you as a download. Nothing travels over the network - there is no upload, no server-side copy, and no account required.

That design matters for anything personal. Family photos, ID documents, screenshots of private information, and unreleased product images never leave your control, so there is no third party to trust with them and nothing to delete afterward. It also means the tool keeps working offline once the page has loaded, and it is fast because there is no upload or download round-trip to wait on.

Because the work happens locally, performance depends on your device. Very large images may take a moment and use some memory while they process, but they never leave your machine.