Generate CSS Gradients,
Shadows & Effects Instantly
A collection of free, easy-to-use CSS generator tools for developers and designers. Create gradients, shadows and glass effects visually — copy the code in one click.
All CSS Tools
Pick a tool and start generating CSS code in seconds.
CSS Gradient Generator
Create linear, radial and conic CSS gradients visually. Add multiple color stops, adjust angles and copy the CSS code instantly.
Open ToolCSS Box Shadow Generator
Build CSS box shadows with multiple layers. Control X/Y offset, blur, spread and opacity then copy the ready-to-use CSS code.
Open ToolGlassmorphism Generator
Generate the popular frosted glass CSS effect. Adjust blur, opacity, border and radius to create stunning glassmorphism UI components.
Open ToolWhy Use CSSTools.io?
Built for developers who want results fast.
Instant Results
Live preview updates as you adjust controls. No page reloads, no waiting.
1-Click Copy
Copy your CSS code instantly. Works with plain CSS, Tailwind and SCSS.
No Signup Needed
100% free with no account required. Just open the tool and start creating.
Multiple Presets
Get started fast with built-in presets. Customize from there to match your design.
Mastering CSS Gradients: A Complete Guide
Learn how to create stunning multi-stop gradients, understand gradient types, and discover advanced techniques.
Read MoreAdvanced Box Shadow Techniques for Modern UI
Go beyond basic shadows — learn to layer multiple shadows and build elevation systems.
Read MoreThe Complete Glassmorphism CSS Guide
Everything about the frosted glass trend — from backdrop-filter basics to cross-browser compatibility.
Read MoreAbout CSS Generator Tools
CSS (Cascading Style Sheets) is the language used to style web pages. Writing CSS effects like gradients, shadows and glass effects by hand can be time consuming and requires knowledge of exact syntax. That is where CSS generator tools come in — they let you create effects visually and generate the correct CSS code automatically.
CSSTools.io provides a collection of free CSS generators that work directly in your browser. No installation, no account, no cost. Simply adjust the controls, see the live preview, and copy the CSS code into your project.
What is a CSS Gradient?
A CSS Gradient Generator is a smooth transition between two or more colors, rendered directly by the browser without needing an image file. CSS defines three types: linear gradients (along a straight line), radial gradients (from a center point outward), and conic gradients (rotating around a center point). Gradients are widely used for backgrounds, buttons, text effects and UI elements.
What is a CSS Box Shadow?
The CSS box-shadow property adds shadow effects around an element's frame. You can set multiple layers, each with its own horizontal offset, vertical offset, blur radius, spread radius, color and opacity. Box shadows are essential for creating depth, elevation and modern card-style UI designs.
What is Glassmorphism?
Glassmorphism is a UI design trend that uses a frosted glass effect — achieved in CSS using backdrop-filter: blur() combined with a semi-transparent background. The result is a modern, elegant look that became popular after being used in Apple's macOS Big Sur design language.