In a nutshell: The Clamp Generator creates responsive CSS clamp() functions for fluid typography. Enter your minimum, preferred (viewport-based), and maximum values, and instantly get the ready-to-use CSS. It ensures your text scales smoothly across devices without manually writing media queries.
Happy Web Designer

Settings

Generated CSS

Preview

The quick brown fox jumps over the lazy dog.
78.5714% (1280px) Current Font Size: 28px

Suggested Font Sizes

Choose a category to view suggested clamp() functions and CSS for common font size presets.

Using the powerful CSS clamp() function helps you create fluid font-size typography that scales smoothly – no guesswork required. Just enter a few details, and our clamp generator will generate a simple code snippet ready to copy and paste.

Whether you’re looking for a CSS clamp generator for typography or a quick way to build a fluid type scale, this tool saves you time and effort.

CSS’s clamp() function lets you set a value that scales fluidly between a minimum and maximum, perfect for responsive typography.

The syntax looks like this:

				
					clamp(minimum, preferred, maximum);
				
			

How Do clamp() Functions Work?

  1. Minimum: Ensures the value never goes below a set floor.
  2. Preferred: Uses vw or another dynamic unit based on viewport.
  3. Maximum: Prevents the value from growing too large.

For example, this CSS rule ensures a heading scales smoothly across different screen sizes:

				
					h1 {
  font-size: clamp(1.5rem, 4vw, 3rem);
}

				
			

What are common clamp() function preset examples?

Clamp() presets let you set fluid values that adapt to screen size without exceeding defined limits. The following table compares the most commonly used clamp() presets—Small, Medium, and Large—showing each preset’s minimum value, viewport-based preferred value, and maximum value for fluid typography sizing.

Clamp() Preset Comparison
Preset Min Preferred Max
Small 1rem 2vw 1.5rem
Medium 1.25rem 2.5vw 2rem
Large 1.5rem 3vw 2.5rem

Perfect for Responsive Design – No need for media queries; text scales automatically.
Prevents Oversizing or Undersizing – Keeps text readable across devices.
Simplifies Code – Less need for breakpoints or complex calculations.

Where is clamp() Used?

  • Font sizes (fluid typography)
  • Spacing & margins (dynamic layout adjustments)
  • Container widths & heights (flexible components)

It’s a game-changer for modern CSS, giving you better control over how your content adapts across different screen sizes!

The Clamp Generator Tool

Say goodbye to rigid font sizes and dive into the world of responsive typography with our free Clamp() Generator Tool. This clever little web design companion helps you generate CSS Clamp() values in seconds—no maths, no guesswork, just silky-smooth scaling text. Whether you’re designing in WordPress, coding by hand, or just trying to impress your boss with “fluid type,” this tool makes it effortless to set a minimum size, an ideal size, and a max that won’t go rogue on big screens. It’s a game-changer for designers who care about accessibility, flexibility, and looking like they know what they’re doing.

Responsive font sizing isn’t just a trend—it’s a best practice. With Clamp(), your headings, paragraphs, buttons, and even the tiniest disclaimer text can adapt perfectly to any screen size. That means happier users, better readability, and fewer complaints from clients who think 12px is “fine.” Give it a spin, copy the code, and paste it straight into your CSS or WordPress theme. Simple. Smart. Scalable. Just how typography should be.

Clamp() Documentation

Learn more about the clamp() function by reading the documentation.

Elementor Pro

Elementor & Clamp Generator

Q. Can I use Clamp() with Elementor?
A. Yes, absolutely you can!
 
Using the Clamp Generator with Elementor is as easy as selecting the pencil option instead of px, em, or vw. Enter your the generated Clamp Function into Elementor and your all set.  Make sure you don’t have anything else set for the different viewport sizes.

 

What is the clamp() function?

The CSS clamp() function is a powerful sizing tool that sets a value within a min-max range. It takes three parameters: a minimum value, a preferred value (often viewport-based), and a maximum value. This creates fluid, responsive elements that adapt perfectly across all device sizes without multiple media queries.

Why should I use clamp() instead of media queries?

Clamp() offers several advantages: it creates smoother transitions between sizes, requires less code, eliminates breakpoint maintenance, and improves performance. Unlike media queries that change values at fixed breakpoints, clamp() provides truly fluid typography that scales proportionally with the viewport size while respecting your minimum and maximum limits.

Which browsers support the clamp() function?

CSS clamp() is supported in all modern browsers including Chrome 79+, Firefox 75+, Safari 13.1+, and Edge 79+, covering over 94% of users worldwide. For older browsers, the generator provides optional fallback CSS you can include in your stylesheet.

Can I use clamp() functions for properties other than font-size?

Absolutely! While the generator focuses on typography, you can apply the same clamp() technique to any CSS property that accepts length values, including margins, padding, widths, heights, and gaps. This allows you to create fully fluid layouts where all elements scale harmoniously.

Is the Clamp Generator free to use?

Yes, the CSS Clamp Generator is completely free with no limitations or sign-up required. It's provided by McNeece as a resource to help designers and developers create better responsive websites without the complexity of traditional responsive typography techniques.

How do I use clamp() functions with page builders like Elementor?

In Elementor, click the pencil icon next to any size field to access custom units, then paste your generated clamp() function. For best results, ensure you clear any conflicting responsive settings in the mobile and tablet views, as clamp() will handle the responsiveness automatically.

Can I preview how different fonts look with the clamp generator?

Yes! The Clamp Generator includes a Google Fonts integration that allows you to preview how your responsive typography will look with different typefaces. This helps you fine-tune your settings to ensure optimal readability across all device sizes before implementing the code.

Can using the clamp() generator improve website performance?

Yes, clamp() functions can improve performance by reducing CSS file size and simplifying the browser's rendering work. Instead of processing multiple media queries, the browser only needs to evaluate a single clamp() function. This leads to smoother scrolling experiences and potentially better Core Web Vitals scores.

Learn more about our WordPress Hosting.