About PixelSpec
A no-fluff reference for image sizes, built by people tired of scrolling past a template gallery just to find a number.
What this is
PixelSpec answers one question well: what size should this image be? For every platform and asset we list the exact pixels, the aspect ratio, the safe zone and the file limits, then put a resizer right there so you can act on the answer. There are 51 specs across 18 platforms and counting.
Why we built it
Search for any image size and the top results are design tools that bury the number under marketing and a call to open their editor. That is a slow way to learn a simple fact. We wanted the answer first, an honest date next to it, and a tool that respects your privacy. No account, no upload, no editor push.
How it stays accurate
Platforms change their recommended sizes from time to time. Every spec carries a last-verified date, and when something changes we update the data and refresh that date rather than leaving a stale screenshot online. The current data was last verified on July 2, 2026. The changelog records notable updates.
Privacy
Every tool runs in your browser. Your images are processed on your device with the canvas API and are never uploaded. See the privacy policy for the details.
Get in touch
Spotted a size that has changed, or a platform we are missing? Tell us on the contact page. Corrections are the most useful thing you can send.