Built for people who just want the right size

Gitsize is a free, browser-based image resizer built for marketers, small business owners, creators, and anyone who has ever uploaded a logo only to have it come out blurry, cropped wrong, or rejected by an ad platform. We know the feeling.

Why we built it

Every social platform has different image size requirements. Instagram wants one size, LinkedIn wants another, and Meta Ads has its own set of rules that seem designed to confuse first-timers. Most image editors make you guess the pixel dimensions yourself. We built Gitsize so you never have to look up a pixel dimension again. Pick your platform, upload your image, download the right size. That's it.

How it works

Gitsize processes your images entirely in your browser using the Canvas API. Your photos are never uploaded to our servers. We never see them, store them, or have access to them. The moment you close the tab, they're gone.

Who is this for

Gitsize is built for small business owners managing their own social media, freelance marketers and social media managers, creators who post across multiple platforms, anyone running Meta or Google ad campaigns, and anyone who just needs an image to fit correctly.

Free. Always.

Gitsize is and will always be free to use. We keep the lights on with small, non-intrusive display ads. No paywalls, no sign-up required, no watermarks on your downloads.