Image Resizer by Percentage
Scale a picture up or down by a percentage.
Image Resizer by Pixels
Set an exact width and height in pixels.
Drop your files here
or
Choose filesAccepts JPG, PNG, WebP, GIF and BMP · up to 25 MB · up to 20 files
Processing locally…
Privacy. This tool works entirely inside your browser. Your file is never sent to us, never saved, and never seen by anyone else. Read how we handle files
Pixels are what screens and web forms work in, so this is the resizer to reach for when a form states a size like "maximum 1024 x 768".
Fill in one box and leave the other empty, and the missing side is worked out for you so the picture keeps its shape. Fill in both and tick "keep the original shape" and the image is fitted inside the box you typed without being stretched. Untick it and the image is forced to exactly those numbers, which will distort it if the shape does not match.
"Never make the picture bigger" is worth leaving on. Enlarging an image cannot add detail that was not captured; it only spreads the existing pixels over a larger area and makes the result look soft.
Resizing is also the most effective way to reduce a file size. Halving both the width and the height removes about three quarters of the data, usually far more than any amount of quality compression.
How to use it
- Choose your files, or drag them onto the box above.
- Enter the width and height you need, then press resize.
- Download the result. Nothing is kept once you leave the page.
Files it accepts
- JPG
- PNG
- WebP
- GIF
- BMP
- Up to 25 MB per file
- Up to 20 files at once
Questions
Should I enter both width and height?
Only if you have to. Filling in one and leaving the other empty guarantees the picture keeps its proportions, which is almost always what you want.
Can I make a small picture bigger?
You can untick "never make the picture bigger", but the result will look soft. Enlarging cannot invent detail that the camera never recorded.
Does resizing make the file smaller?
Yes, and it is the most effective way to do it. Halving the width and height cuts the pixel count to a quarter.
Is this tool free?
Yes. Every tool here is free, and you do not need an account, an email address or a phone number.
Is my file uploaded to your server?
No. This tool runs inside your own browser, so the file never leaves your phone or computer. Once the page has loaded you can even switch off your internet connection and the tool will still work.
Which files can I use?
This tool accepts JPG, PNG, WebP, GIF and BMP. The largest file it will take is 25 MB.