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CSS Loader Generator - Online Animated Spinner Code

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CSS Loader Generator

Generate clean, ready-to-use animated CSS spinners. Pick a style, customize, and copy the code.

Live preview – updates instantly
Border
Pulse
Dots
Square
Dual Ring
Hourglass
48px
0.8s
4px
Generated Code
Frequently Asked Questions
What is a CSS loader?

A CSS loader is a pure CSS animation used to indicate loading or processing. No JavaScript or images needed – just HTML and CSS. They are lightweight, customizable, and easy to drop into any project.

How do I add this spinner to my site?

Copy the HTML snippet and paste it where you want the loader to appear. Then copy the CSS code into your stylesheet or inside a <style> tag. That's it!

Will these work on all browsers?

All modern browsers (Chrome, Firefox, Safari, Edge) fully support CSS animations and transforms. For IE11 and older, consider a simple GIF fallback or use a polyfill.

Can I change the animation direction?

Yes, in the generated CSS you can replace animation: spin ... linear infinite with a reverse direction or adjust the @keyframes. For pulse and dots, you can tweak the keyframe percentages.

Why is my spinner lagging or not smooth?

Make sure you're using transform and opacity in animations – these are hardware-accelerated. Avoid animating properties like width or top/left. Our generated code follows these best practices.

How do I overlay the loader on a page?

You can wrap the HTML in a container with position: fixed; z-index: 9999; and center it using flexbox. We recommend adding a semi-transparent background overlay.

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