Overview
Introduction
A long list of announcements, sponsor names, or ticker items is often more fun to preview as a moving marquee than as static text, the kind of scrolling banner you'd see on a stock ticker or an old-school website.
This tool renders your list as a smooth, CSS-only auto-scrolling ticker so you can preview how it would look and feel before building the effect into a real page.
What Is List Scroller?
The List Scroller is a visual preview tool: it takes your list and renders each item inside a continuously scrolling track, animated with a pure CSS `@keyframes` rule.
It does not alter your list data in any way, the text output panel below the preview shows the same list, unchanged, that you typed in.
How List Scroller Works
Your list is split on the chosen separator and rendered as a row (or column) of items inside a container with `overflow: hidden`.
A CSS `@keyframes` animation translates that row continuously from one edge to the other, looping seamlessly, with a toggle switching between horizontal and vertical scroll directions.
When To Use List Scroller
Use this to preview how a list would look as a scrolling ticker or marquee banner before implementing the effect on a real website.
It's also just a fun way to present a short list, credits, sponsors, announcements, as a moving visual instead of static text.
Often used alongside List Visualizer, List Cloud Generator and ZigZag List Generator.
Features
Advantages
- Pure CSS animation, smooth and performant with no JavaScript animation loop.
- Doesn't touch your underlying list data, the text output stays exactly what you typed.
- Supports both horizontal and vertical scroll directions.
Limitations
- This is a visual preview feature, not a data transformation, the text output is always the unchanged input list.
- Very long lists may scroll quickly or take a long time to loop depending on the container width; there's no per-item speed control.
Examples
Best Practices & Notes
Best Practices
- Keep list items reasonably short for a horizontal ticker, so each one is fully readable as it scrolls past.
- Use the vertical mode for credits-style lists where reading top to bottom feels more natural.
Developer Notes
The scrolling track is a flex row (or column) duplicated once so the loop appears seamless, animated with a CSS `@keyframes` rule that translates it by 50% of its own length; direction is a local component toggle, not part of the pure lib function, since it's purely presentational.
List Scroller Use Cases
- Previewing a scrolling sponsor or credits banner before building it into a real page
- Presenting a short announcement list in a more eye-catching, animated way
- Demonstrating a CSS marquee technique without writing the keyframes by hand
Common Mistakes
- Expecting the text output panel to reflect any transformation, it never does for this tool, it always mirrors the input list.
- Using extremely long items in horizontal mode, which can make the scroll feel slow since the whole track has farther to travel.
Tips
- Toggle between horizontal and vertical to see which layout best suits your list's content and length.
- Pair with List Visualizer if you also want a static, scannable card view of the same list.