UD5 Toolkit
CSS Modules Class Name Generator - Online Scoped Styles
Write global CSS and auto‑generate unique, scoped class names with source maps. Understand CSS Modules naming.
CSS UI Pattern Library - Online Copy‑Paste Components
🎨 CSS UI Pattern Library
Browse, preview & copy beautifully crafted CSS components. Pure CSS, no dependencies — just copy and paste into your project.
📖 Frequently Asked Questions
A CSS UI Pattern Library is a curated collection of ready-to-use user interface components built with pure CSS. Unlike full frameworks, these patterns are lightweight, independent snippets that you can copy and paste directly into your project without any dependencies or build tools.
Most components are pure CSS and work without any JavaScript. A few interactive elements (like toggle switches) use the CSS checkbox hack technique to achieve interactivity without JavaScript. You can enhance them with JS if needed, but they function perfectly as-is.
Yes! All components are designed with responsiveness in mind using relative units and flexible layouts. They also follow accessibility best practices including proper contrast ratios, focus states, and semantic HTML structure where applicable.
Absolutely. The CSS code you copy is clean and well-organized, making it easy to tweak colors, padding, border-radius, and other properties. You can also use CSS custom properties (variables) to create a consistent theme across all components.
Yes, these components are framework-agnostic. They use their own class names (prefixed with
c-) to avoid conflicts with Tailwind, Bootstrap, or any other CSS framework. You can safely drop them into any existing project.We continuously add new UI patterns based on modern design trends and user requests. Bookmark this page and check back regularly — or suggest a component you'd like to see added to the collection!
CSS copied to clipboard!
Gradient Button CSS Generator – Online Modern UI Design
Design a modern button with gradients, shadows, and hover effects. Copy the clean CSS code.
CSS Animation Library Browser - Online Preview & Copy Keyframes
Browse a collection of ready-to-use CSS animations (fade, slide, bounce). Click to preview, then copy @keyframes and class to your project. Local tool.
CSS Filter Visual Editor - Online Apply & Chain Filters
Add multiple CSS filters (grayscale, blur, hue‑rotate) to an image. See the combined effect. Copy the CSS filter value.
CSS Font Stack Generator - Online Fallback Fonts
Build a complete font‑stack for your website. Choose a primary font and get the best fallback options for different OS. Copy the CSS.
font‑palette CSS Playground - Online Color Fonts Explorer
Pick a COLRv1 color font and change its palette with font‑palette. Create custom palettes with @font‑palette‑values.
CSS Relative Color Syntax Playground - Online from a Base Color
Write CSS like `oklch(from red l c h)` to modify colors. Preview the output and copy. Modern color manipulation.
CSS Vendor Prefix Remover - Online Clean Legacy Code
Paste CSS with vendor prefixes and get a clean version with only the standard property. Modernize your stylesheets.
Focus Outline Styler - Online Design Accessible Rings
Design a custom focus indicator with outline, offset, and box‑shadow. Preview on interactive elements. Copy the CSS.
Custom Scrollbar CSS Generator - Online Firefox & Webkit
Design a fully styled scrollbar with colors, width, radius, and hover effects. Supports both ::-webkit‑scrollbar and Firefox scrollbar‑width.
Mix‑Blend‑Mode Playground - Online CSS Effect Tester
Pick two images or colors and apply all 16 CSS mix‑blend‑mode values live. See and copy the right CSS for your design.
Clip Path Playground - Online Interactive CSS Shapes
Drag points to create a custom clip‑path shape. See the CSS value update live. For creating non‑rectangular elements.
CSS Triangle Generator - Online Pure CSS Shapes Creator
Generate CSS-only triangles by configuring direction, size, and color. Copy the CSS snippet. Useful for creating speech bubbles and navigation arrows.
CSS Button Styler - Online Pure CSS Effects
Design beautiful buttons with gradients, shadows, and hover/active effects. No JavaScript required. Copy the CSS.
Stylelint Config Generator - Online CSS Linter Setup
Set up Stylelint rules for your project by selecting extensions (SCSS, order, etc.). Output a valid .stylelintrc.
CSS Reset Generator - Online Custom Normalize Snippet
Build a custom CSS reset by toggling which elements to normalize. Copy the resulting stylesheet. Lean and clean.
CSS Triangle Builder - Online Pure Shape Generator
Create all kinds of CSS‑only triangles (up, down, left, right, equilateral). Adjust color and size. Grab the code.
Custom Focus Ring Styler - Online CSS :focus‑visible Designer
Design a custom focus indicator with outline, offset, and box‑shadow. Preview on interactive elements. Copy the CSS.
CSS Grid Layout Builder - Online Visual Drag & Drop
Add rows and columns, merge cells, and set gaps visually. Get the grid‑template CSS and HTML. Fast layout prototyping.
@scope CSS At‑Rule Playground - Online Scoped Styles
Write scoped CSS rules that apply only within a subtree. See the boundary limits and avoid naming conflicts. New browser feature.
Chakra UI Theme Builder - Online Custom Design Tokens
Define brand colors, fonts, and spacing. Generate the Chakra UI extendTheme object. Export as JSON or JavaScript.
CSS Relative Color Playground - Online Manipulate Colors
Write CSS like `oklch(from red l c h)` to modify colors dynamically. Preview the output and copy the code.
SVG to CSS Background - Online Inline Code Generator
Paste or upload an SVG and convert it into a CSS background‑image data URI. Clean and ready to embed.
Emoji to CSS Content Code - Online ::before Pseudo Generator
Pick an emoji and get the exact CSS content property value with escaped Unicode. For inserting emojis via CSS.
CSS color‑mix() Visualizer - Online Blend in sRGB & OKLCH
Pick two colors and mix them in different color spaces with sliders. See the difference between sRGB and OKLCH mixing. Copy the code.
Abstract SVG Pattern Generator – Online Geometric Art
Click to randomize geometric SVG patterns. Copy the inline SVG code for your website.
LESS to CSS Converter - Online Free Stylesheet Compiler
Compile LESS code to plain CSS in your browser. Check for syntax errors and get clean output. For legacy projects.
Text Decoration CSS Generator - Online Underline & Strike
Style underlines, overlines, and strike-throughs with colors, wavy styles, and thickness. Modern CSS text‑decoration.
Native Accordion Group Generator - Online <details> Sync
Build a group of `<details>` elements where opening one closes others. Optional JavaScript. Copy the accessible snippet.
CSS Multi-Column Layout Generator - Online Newspaper Style
Create a multi‑column text layout with adjustable column count, gap, and rule. Copy the CSS. Elegant reading experience.