Clamp() Font Size Generator

The Clamp() Font Size Generator is a tool that helps you create responsive font sizes using CSS clamp(). It allows your text to smoothly scale between a minimum and maximum size depending on the viewport width.

The clamp() function accepts three values: a minimum size, a preferred fluid size, and a maximum size. The browser picks the smallest or largest when needed and the fluid size in between, giving perfectly responsive text.

Using clamp() removes the need for multiple media queries. It automatically adjusts text size across all screen sizes, improving readability and user experience while keeping CSS clean.

The tool calculates a mathematical fluid scaling formula using viewport width (vw) and your min–max sizes. It generates a balanced expression like 2.5vw + 10px to keep text scaling smoothly between breakpoints.

Yes! The preview area updates instantly as you type or change values. Resize your browser window to see how the font scales between the minimum and maximum viewport sizes.

Yes. The tool automatically adds line-height: 1.5; to maintain proper text spacing and visual rhythm across all responsive sizes.

Yes. The clamp() function is supported by all major modern browsers, including Chrome, Firefox, Edge, and Safari. It is safe for production use.

No. Using clamp() eliminates the need for multiple media queries because it handles scaling automatically. However, you can still use media queries for special layout cases.