Free Custom CSS Scrollbar Creator Online

Custom CSS Scrollbar Creator

Seamlessly integrate the browser scrollbar into your website’s design language. Visually customize the thumb, track, sizing, and border radii, and export cross-browser compatible CSS instantly.

Scrollbar Width 12px
Thumb Color #2563eb
Invalid Hex Code
Thumb Radius 6px
Track Color #f1f5f9
Invalid Hex Code
Track Radius 6px

Scroll to Preview Integration

This box contains dummy content specifically designed to force a vertical overflow. As you adjust the controls on the left, the custom pseudo-elements are dynamically injected into this specific container’s styling context.

Traditionally, browser scrollbars are determined entirely by the user’s operating system (Windows, macOS, Linux). A macOS user sees a thin, floating, translucent bar, while a Windows user sees a thicker, solid gray bar.

When developing immersive web applications or complex dashboard user interfaces, relying on the operating system’s default scrollbar often ruins the aesthetic consistency of your brand palette.

Using WebKit pseudo-elements allows us to intercept the operating system’s default behavior and enforce strict CSS rendering over the scrollbar track and the draggable thumb.

Keep scrolling to ensure the thumb radius and track radius behave exactly as you envision. Once you are satisfied with the design, copy the generated CSS below.

How to Customize CSS Scrollbars
Overriding the default operating system scrollbar is essential for maintaining brand consistency, especially in dark-mode interfaces or immersive web applications. Here is how to use our generator to match your scrollbar to your UI:
  1. Set the Width: Adjust the primary thickness of the scrollbar. For standard web pages, 10px to 14px is optimal. For subtle internal div scrolling (like a dropdown menu), thinner 6px scrollbars are preferred.
  2. Style the Thumb: The “Thumb” is the draggable handle. Select a color that provides high contrast against your background. Adjust the radius to make it completely pill-shaped or perfectly square.
  3. Style the Track: The “Track” is the gutter the thumb slides inside. Usually, this should be a very subtle, slightly darker variation of your website’s main background color.
  4. Export the Code: Click “Copy CSS”. Our generator intelligently outputs the ::-webkit-scrollbar pseudo-elements alongside the newer, standard scrollbar-width and scrollbar-color properties to guarantee maximum cross-browser support.
Technical Deep Dive: The Anatomy of a Scrollbar
To write custom scrollbar code effectively, you must understand the specific pseudo-element selectors exposed by the browser rendering engine.
WebKit Pseudo-Elements
Browsers built on the WebKit and Blink engines (Google Chrome, Microsoft Edge, Safari, Opera) expose seven different pseudo-elements for scrollbars. The three most critical ones that our generator utilizes are:
  • ::-webkit-scrollbar: This addresses the root background of the scrollbar. Its primary function is to define the width (for vertical scrolling) and height (for horizontal scrolling).
  • ::-webkit-scrollbar-track: This addresses the track (or gutter) that the thumb slides along. You can apply backgrounds, shadows, and borders here.
  • ::-webkit-scrollbar-thumb: This addresses the draggable scrolling handle itself. This is the most important element to style for visibility and user experience.
The Firefox Standardization (W3C Specification)
Historically, Mozilla Firefox completely ignored WebKit pseudo-elements, refusing to render custom scrollbars. Recently, the W3C drafted an official CSS Scrollbars Module specification. Instead of pseudo-elements, it introduces two standard properties: scrollbar-width (accepting values like auto, thin, or none) and scrollbar-color (accepting two colors: thumb and track). Our tool automatically generates these fallback properties to ensure Firefox users see your brand colors.
Primary Use Cases for Custom Scrollbars
1. Perfecting Dark Mode Interfaces
If you build a beautiful, deep-slate dark mode application, but leave the default scrollbars active, Windows users will see a glaring, bright-white scroll track disrupting the right edge of their screen. Styling the scrollbar is a mandatory step for finalizing any dark theme implementation.
2. Internal Overflow Containers
Modern applications frequently feature “scrollable areas within scrollable areas” (such as a sidebar navigation menu, a live chat widget, or a dropdown list). Native OS scrollbars look extremely heavy and clunky when placed inside a small UI card. Thin, custom, semi-transparent scrollbars make these overflow containers look sleek and intentional.
3. Immersive Marketing Sites and WebGL
High-end marketing websites utilizing heavy WebGL canvas elements (like Three.js) often hide the default scrollbar entirely or replace it with a hyper-minimalist custom indicator to prevent the browser UI from breaking the immersive 3D illusion.
Accessibility & User Experience Considerations
While altering the scrollbar gives you total design control, it can introduce severe UX friction if applied incorrectly.

⚠️ The Contrast Trap: The most common mistake developers make is prioritizing minimalism over usability. If you make the scrollbar thumb light gray, and the track slightly lighter gray, users with imperfect vision will physically be unable to locate the scrollbar.
  • Maintain High Contrast: Ensure the Thumb color contrasts sharply against the Track color. If your track is dark, your thumb should be light (and vice-versa).
  • Do Not Hide It Completely: While ::-webkit-scrollbar { display: none; } is possible, doing so removes a vital visual cue. Users will not know the container has more content to scroll.
  • Maintain Adequate Width: If you are targeting desktop users who navigate with a mouse, shrinking the scrollbar width below 6px makes it incredibly frustrating to click and drag.
Explore More Free CSS UI Generators
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Frequently Asked Questions
Why doesn’t the custom scrollbar show up on iOS Safari?
Mobile operating systems (specifically iOS and Android) intentionally hide scrollbars to save screen real estate, opting for native touch-scrolling overlays. WebKit pseudo-elements for scrollbars primarily affect desktop browser environments where physical mice and trackpads are utilized.
Can I apply this styling to only one specific div?
Yes. If you copy the CSS generated here and place it directly in your stylesheet, it will apply globally to the body. To target a specific container, simply prepend your class name to the pseudo-elements. Example: .my-chat-box::-webkit-scrollbar { width: 8px; }
Can I add hover effects to the scrollbar thumb?
Yes, WebKit supports interaction states. You can manually write ::-webkit-scrollbar-thumb:hover { background: #yourcolor; } to make the thumb change colors when the user’s cursor rests on top of it, providing excellent tactile feedback.
   
  



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