IMAGE RESIZE
Resize Image — Change Width & Height in Pixels
Resize an image online for free. Set a new width and height in pixels, optionally keeping aspect ratio. Runs in your browser — images stay private.
Your files never leave your device.
Drop a file here or click to choose
Set width and/or height (leave one blank to keep aspect ratio)
Resizing changes an image's pixel dimensions — its width and height. If you need a picture to be 1200px wide for a layout, or scaled down to fit a template, this is the tool: set the new dimensions and the image is redrawn on an HTML canvas at that size, entirely in your browser.
Pixel dimensions vs file weight
This is the distinction people most often confuse. Dimensions are how many pixels the image contains — say, 1920×1080. File weight is how many kilobytes that image occupies on disk, which depends on the format and compression. They are related but separate: you can have a huge-dimension image that's a light file, or a small-dimension image that's heavy.
Resizing changes the dimensions. Compressing changes the weight. Resizing smaller usually reduces the file as a side effect (fewer pixels to store), but if your goal is a specific KB limit rather than specific dimensions, reach for a compressor or a resize-to-KB tool instead — those aim at the number on the scale, not the size of the canvas.
Scaling down vs scaling up
Scaling down is clean: the tool has more detail than the smaller size needs, so it discards the surplus and the result stays sharp. Scaling up is different — enlarging can't invent detail the camera never captured, so a small image blown up will look soft or blurry. Whenever possible, resize down from the largest original you have rather than up from a small one.
How to use it
- Upload the image you want to resize.
- Enter a new width and height, keeping aspect ratio locked to avoid stretching.
- Download the resized image at its new pixel dimensions.
Frequently asked questions
- Should I keep the aspect ratio?
- Usually yes — locking the ratio scales width and height together so the image never looks stretched or squashed. Unlock it only when a design needs exact dimensions and you'll accept some distortion.
- Does resizing reduce the file size?
- Fewer pixels generally means a smaller file, so downsizing helps. But if your goal is a specific file weight, use a compressor or a resize-to-KB tool, which aim at the KB number directly.
- Can I make a small image larger?
- You can enter bigger dimensions, but upscaling can't create detail that wasn't captured, so it will look softer and can appear blurry. Resizing down from a larger original always looks cleaner.
- Is my image uploaded?
- No. The resize is drawn on a canvas in your browser, so the image never leaves your device.