Image Resizer
Change an image to the exact dimensions you need.
JPEG, PNG or WebP. The file is read by your browser and never uploaded.
New sizeExample
1200 × 800
choose a picture to resize
Choose a picture to get started.
Dimensions, not file size
This page is for when someone has told you a number: an upload form that wants 800 × 600, a banner that has to be 1200 × 630, an avatar rejected for being four thousand pixels across. If your problem is instead that the file is simply too big to send, the Image Compressor asks one question rather than two.
What the proportion lock does
With it on — the default — the image keeps its shape. Enter one dimension and the other follows. Enter both and the image is fitted inside that box: the smaller of the two scale factors wins, so nothing is stretched and nothing is cropped.
A 600 × 400 image asked to fit inside 1000 × 100 comes back 150 × 100, not 1000 × 667. The height was the limit. This surprises people, so the page says which of the two numbers will not be reached before you press anything.
Turn the lock off and both numbers are obeyed exactly, distortion included. That is occasionally what you want, and it should never happen by accident — which is why it takes a deliberate click.
Making an image larger
Allowed, and warned about. Enlarging cannot invent detail: it spreads the pixels you already have across more of them, and the result looks softer the further you push it. A 400-pixel photo blown up to 4,000 is a 4,000-pixel photo of a 400-pixel photo. If you need a genuinely larger image, the only real answer is a larger original.
Nothing is uploaded
The same guarantee as every tool here, and tested the same way: your browser decodes the file, redraws it and encodes it again, all on your machine. The test suite for this page records the requests this tool makes while an image is processed and fails if a single one could carry the file.
What this does not do
It does not crop — that removes part of the picture, and it is a different tool. It does not rotate. And it changes only the copy you download: the file you started with is untouched.
Questions
Is my image uploaded?
No. Your browser reads the file, redraws it at the size you asked for and encodes the result on your own machine. The test suite for this page records every network request the tool makes while a file is processed and fails if any of them could carry it.
How do I resize to an exact width and height?
Turn off "Keep the proportions" and enter both numbers. With the lock on, the image is fitted inside the box you give rather than stretched to fill it, so one of your two numbers will be smaller than you asked for.
Why is my result smaller than the height I entered?
Because the proportions were locked. A 600 × 400 image asked to fit inside 1000 × 100 comes back 150 × 100: the height was the limit, and reaching the width as well would have stretched the picture.
Can I make an image bigger?
Yes, and the page warns you when you do. Enlarging cannot add detail — it spreads the pixels you have over a larger area, so the result looks softer. If you need a genuinely larger image, start from a larger original.
What is the difference between this and the compressor?
The number you are holding. If someone told you a size — 1200 × 630 for a banner, 400 × 400 for an avatar — this is the tool. If your file is simply too big to send, the Image Compressor asks one question instead of two.
Does resizing lose quality?
Making an image smaller discards pixels permanently, which is usually the point. Keep the original if you might need the full size later; this page never changes the file you started with.
Related WGX tools
- Image Editor
Crop, resize, turn, fix the light and add text to a picture in one place, with every step undoable — without uploading it.
- Image Compressor
Make a photo smaller without uploading it anywhere.
- Image Cropper
Keep the part of the picture you want.