Resize Image

What resizing an image actually does

Resizing changes how many pixels an image is made of. A photo straight off a phone might be 4032 × 3024 pixels — far bigger than it needs to be for a profile picture or a forum post. This tool lets you set an exact width and height in pixels so the file comes out at the size you actually need, which usually makes it load faster and weigh far less.

When you'd reach for this

Common cases: shrinking a photo to fit a website's 800-pixel-wide content column, making a square 400 × 400 avatar for a marketplace or Discord, meeting a form that says "upload a photo no larger than 1024px", or getting an eBay/Etsy listing image down to the platform's recommended dimensions. It's also handy for email attachments that bounce because the original is too large.

Keep aspect ratio (and when not to)

Aspect ratio is the relationship between width and height. Leave "keep aspect ratio" on and the tool locks the two together — type a new width and the height follows so nothing looks stretched. Turn it off only when you truly need an exact box, like a fixed 300 × 250 banner slot, and know the picture may squash slightly. A quick tip: to fill a square without distortion, crop the photo square first, then resize.

How to use it

1. Click to choose a photo, or drag one onto the page — JPG, PNG, and WebP all work.
2. Type the width you want in pixels. With "keep aspect ratio" checked, the height fills in for you.
3. Uncheck aspect ratio if you need an exact, independent height, then set it.
4. Download the resized image. The original file on your device is never changed.

FAQ

Will resizing smaller reduce the quality?

Making an image smaller looks clean, since you're throwing away pixels you didn't need. Making it much larger than the original is where it gets soft, because the tool has to invent pixels that were never there.

Does my photo get uploaded anywhere?

No. The resizing happens entirely in your browser, so the image never leaves your device.

What format do I get back?

You get a standard image you can download and use anywhere — on websites, forms, and social profiles.

Is it free?

Yes, it's free and supported by the ads on the page.