CSS Checkerboard Pattern Background Generator

Customize colors and size for a repeating checkerboard background, then copy the CSS.

A checkerboard pattern is commonly used as a transparency indicator in image editors, as a decorative background texture, or as a placeholder pattern before real content loads — and it's achievable with a single CSS background declaration using layered linear gradients.

Customize the two colors and square size with live controls, see the repeating pattern render immediately, then copy the compact CSS needed to apply the same checkerboard background anywhere in your project.

This pure-CSS technique needs no image file at all — it uses four overlapping 45-degree-offset linear gradients combined with background-size and background-position to create the alternating square pattern, keeping the page lightweight with no extra image requests.

Because everything runs locally in your browser, results appear instantly and nothing you type or upload is ever sent to a server.

Bookmark this page if you expect to use this tool regularly — it loads fast and behaves the same way every time, with no account needed.

This kind of task shows up constantly in everyday writing, coding, design, and admin work, which is exactly why a dedicated, focused tool saves so much back-and-forth.

A tool that does one job well, without a cluttered interface or unrelated features competing for attention, tends to be faster to use than a heavier all-in-one app.

If you find yourself needing this often, keeping this page open in a tab is usually faster than digging through a bigger software suite's menus.

Frequently asked questions

Does this require an actual image file to work?

No, this is generated entirely with CSS gradients — no image file or extra HTTP request is needed, keeping your page lighter than using a background image.

Can I use this pattern as a transparency indicator for a color picker or image tool?

Yes, this is exactly the classic technique used to show transparency in image editing tools — a light and slightly darker gray checkerboard is the conventional color choice for that specific use case.