Image Resizer
Resize an image to exact pixel dimensions.
About this tool
Set an exact width and height, or lock the ratio and set one. Useful when a platform demands specific dimensions — an OG image at 1200x630, an avatar at 400x400, a hero that has to match a grid.
Resizing happens on a canvas in your browser, so nothing is uploaded and there is no queue or file-size limit beyond what your own machine can hold.
Common questions
Does resizing lose quality?
Scaling down is close to free — you are discarding pixels you had. Scaling up is not: the browser invents the missing detail and the result looks soft. Always start from the largest original you have.
How do I keep the aspect ratio?
Lock the ratio and set only one dimension; the other follows. Setting both to values that do not match the original ratio will stretch the image, which is almost never what you want for a screenshot.
What size should an Open Graph image be?
1200x630 is the safe default — it is the ratio Facebook, LinkedIn, and Slack all crop to, and X accepts it without letterboxing. Keep important content away from the outer edges, since some clients crop tighter.
Turn it into an interactive demo
createademo turns screenshots and recordings into demos your buyers click through themselves. Free plan, full editor, no credit card.