Responsive breakpoints are easy to get wrong by hand — overlapping ranges, inconsistent units, forgetting the 1px offset on max-width queries. This tool generates clean, correctly-scoped media query blocks instantly.
What Is the Media Query Generator?
Define a set of named breakpoints (or use the sensible defaults), pick mobile-first (min-width) or desktop-first (max-width) strategy, and get ready-to-paste @media blocks with no overlapping ranges.
How to Use It
- Open the tool at /tools/media-query-generator.
- Edit, add, or remove breakpoints and their pixel values.
- Choose mobile-first or desktop-first strategy.
- Switch between px and em units if needed.
- Copy the generated CSS.
Key Features
- Mobile-first and desktop-first modes, both correctly avoiding overlapping ranges.
- Editable named breakpoints with add/remove controls.
- px or em unit output.
- One-click copy of the full generated CSS.
When to Use This Tool
- Starting a new responsive stylesheet with a consistent breakpoint system.
- Converting a design spec’s breakpoints into ready CSS media queries.
- Auditing an existing stylesheet for overlapping or inconsistent breakpoint ranges.
Try It Now
Open Media Query Generator directly, or press ⌘K and type the tool name from anywhere on the site.
Part of the CSS Tools collection on WebdevToolbox — free, browser-based developer tools with no login required.