Resize Image in Pixels
Set an exact width and height in pixels, or scale by a percentage.
Drag and drop an image here
JPG, PNG, WebP, AVIF, HEIC, GIF or BMP · one file · up to 50 MB
Your image stays on this device and is never uploaded.
How to use the Resize Image in Pixels
- Choose an image, or drag it onto the drop area. It stays on your device.
- Pick Pixels, then enter the width and height you need. With Lock aspect ratio on, the second value follows the first so the picture is not squashed.
- Check the DPI. It only decides how many pixels each unit holds, so the same size at a higher DPI gives a bigger, sharper file.
- Choose JPG, PNG or WebP and, for JPG or WebP, the quality. The preview shows the new pixel size before you save.
- Press Resize image, then download the result. The original file is never changed.
About this tool
Pixel size is the number that matters for most websites and uploads: social platforms, application forms and content systems check the width and height in pixels, not the print size. This page changes exactly that, and the result is verified by re-reading the saved file, so the size you see is the size you get.
There are three common situations. If a form says an image must be, say, 800 × 600 pixels, enter those numbers and turn off Lock aspect ratio only if the picture is already that shape. If you just need a smaller copy, use the percentage mode, where 50 percent halves both sides and leaves a quarter of the pixels. If you need one side only, such as a 1200 px wide banner, enter the width with the lock on and the height follows.
Making an image smaller keeps it sharp, while making it larger cannot add detail. Doubling the width of a small picture mostly makes the same detail bigger, so it may look soft. The tool tells you when the new size is larger than the original.
Practical uses
- Making an image fit an upload field that states a width and height.
- Shrinking a large photo before you email it or post it.
- Creating a thumbnail or a fixed-width banner.
Tips for better results
- Resize to the largest size you need, then keep that copy, rather than resizing repeatedly.
- If the shape you need is different from the photo, crop to that shape first so the picture is not squashed.
- To also meet a size in KB, use the image compressor afterwards.
Frequently asked questions
How do I resize without losing quality?
Make the image smaller rather than larger, save as PNG for graphics or at a high JPG quality for photos, and avoid repeated resaves.
How do I keep the proportions?
Keep Lock aspect ratio on. Changing the width then sets the height automatically.
What if the form needs a size in KB as well?
Resize here first, then use the image compressor to bring the file under the KB limit, since the two limits are separate.
Is my image uploaded?
No. The file is read and rewritten in your browser, and it never leaves your device.
More sizes
Related tools
- Image Resizer
- Image Compressor
- Crop, Rotate and Flip Image
- Resize Image to 600x600 Pixels
- All web tools
Privacy
Your image is processed in your browser on your own device. It is not uploaded to Paul Digital or any other server, and nothing is stored once you close the page.