SEOlust logo SEOlust
CSS & Design Generators

CSS Range Slider Generator

Style HTML range sliders with cross-browser CSS — track, fill, and thumb colors, sizes, and shadow — with a draggable live preview and copy-ready code. Free.

All tools

💡 How to use

  • Range sliders need separate pseudo-elements for WebKit/Blink and Firefox — the CSS covers both.
  • Add the range class to your <input type="range">.
  • The fill color uses a track gradient that works in all browsers. Include the small JS snippet so the fill follows the value as it changes.

Free CSS Range Slider Generator

Style HTML range slider inputs with CSS and copy the code in one click. Customise the track color and height, the fill color, and the thumb size, color, and shadow, with a live preview you can drag — then paste cross-browser CSS covering Chrome, Edge, Safari, and Firefox. Free, no sign-up, runs in your browser.

What this tool does

The default <code>&lt;input type="range"&gt;</code> slider looks different in every browser and is notoriously hard to style. This generator produces the vendor-specific CSS you need to give a range slider a consistent, branded look across Chrome, Edge, Safari, and Firefox — controlling the track, the filled portion, and the draggable thumb. Drag the live preview to see exactly how it behaves.

How to use the range slider generator

It is instant:

  • Set the track color and height and the corner radius.
  • Choose the thumb size and color and toggle its shadow.
  • Pick a fill color for the filled portion.
  • Drag the preview to test it, then copy the CSS.

Why range sliders need special CSS

A range input is built from separate shadow-DOM parts, and each engine names them differently. WebKit and Blink browsers (Chrome, Edge, Safari) use <code>::-webkit-slider-thumb</code> and require <code>-webkit-appearance: none</code> to allow styling, while Firefox uses <code>::-moz-range-thumb</code>, <code>::-moz-range-track</code>, and <code>::-moz-range-progress</code>. Because there is no single standard selector, you must write both sets of rules — which is exactly what this generator does for you.

About the filled portion

Showing the track filled up to the thumb is easy in Firefox thanks to <code>::-moz-range-progress</code>, and this tool includes it. WebKit browsers do not expose a native progress part, so the generated CSS keeps a clean single-color track there; if you need a filled look in Chrome and Edge too, you can add a small piece of JavaScript that updates a background gradient as the value changes. For most interfaces the styled track and thumb are enough.

Accessibility and usability

Keep the thumb large enough to be an easy touch target — around 20px or more helps on mobile. Make sure the thumb has clear contrast against the track so it is easy to see, and never remove the keyboard focus behaviour, since range sliders are operable with arrow keys. Always pair a slider with a visible label and, ideally, a text display of the current value so the setting is clear to everyone.

Pro tip

Match the thumb and fill color to your brand accent and reuse the same <code>.range</code> class everywhere for consistency. Store the accent color as a CSS variable so a theme change updates every slider at once. Combine this with our CSS Checkbox & Radio and Text Input generators to style a complete, cohesive form.

FAQ

Is this CSS Range Slider Generator free?
Yes. It is completely free, runs in your browser, and requires no account or sign-up.
Why do I need both -webkit and -moz rules?
Each browser engine builds the slider from differently named parts. WebKit/Blink use ::-webkit-slider-thumb and Firefox uses ::-moz-range-thumb and related parts, so you need both sets of rules for a consistent look. The generator writes both.
How do I style the thumb of a range input?
Set -webkit-appearance: none on the input, then style ::-webkit-slider-thumb for Chrome, Edge and Safari and ::-moz-range-thumb for Firefox. This tool generates both automatically.
Can I show the filled part of the track?
In Firefox, yes — via ::-moz-range-progress, which the generated CSS includes. WebKit browsers have no native progress part, so you would add a small JavaScript snippet to fill the track with a gradient if you need it there too.
How do I make the slider taller or the thumb bigger?
Adjust the track height and thumb size controls. The generated CSS also sets a negative margin on the WebKit thumb so it stays vertically centered on the track.
Is the styled slider still keyboard accessible?
Yes. Styling only changes appearance, not behaviour, so the slider remains operable with the arrow keys. Keep a visible label and enough contrast for full accessibility.
Does it work in all browsers?
Yes. The generated CSS includes both WebKit/Blink and Firefox rules, so it works in Chrome, Edge, Safari, and Firefox.

Related tools

Pro tip: pair this tool with CSS Box-Shadow Generator and CSS Flexbox Generator for a faster SEO workflow.

  • CSS Box-Shadow Generator — Design CSS box-shadows visually with live preview — control offset, blur, spread, opacity, color, and inset, …
  • CSS Flexbox Generator — Build flexbox layouts visually — set direction, justify, align, wrap, and gap with a live preview, then copy …
  • CSS Loader & Spinner Generator — Create pure-CSS loading spinners and animations — spinner, dual-ring, pulse, and dots styles with adjustable …
  • CSS Text-Shadow Generator — Add shadows and glow effects to text visually — adjust offset, blur, opacity, and color with a live preview a…
  • CSS Gradient Generator — Create CSS gradients visually and copy the code in one click — linear, radial, and conic gradients with unlim…