web-design
Use any icon (100,000+) from Iconify, for TailwindCSS.
The Backend Built forAgentic Development
Give agents everything they need to ship fullstack apps.
InsForge is a backend development platform built for AI coding agents and AI code editors. It exposes backend primitives like databases, auth, storage, and functions through a semantic layer that agents can understand, reason about, and operate end to end.
Haptic feedback for the mobile web. Supports React, Vue, and Svelte.
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The AI Operator Living in Your Web Page. JavaScript in-page GUI agent. Control web interfaces with natural language.
🪄One line of code, turns your website into an AI-native app. Users give natural language commands, AI handles the rest.
Looking for inspiration? Browse our curated collection of HTML UI components ready to drop into your next project.
Build your retro component library
A set of 8-bit styled components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.
Extract Dominant Colors from Images. Go CLI, REST API & JavaScript Library.
Extract dominant colors from images using k-means clustering. A fast, cross-platform CLI tool that extracts dominant colors from images using k-means clustering.
The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI.
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Beautiful & Animated Charts.
A Beautiful & Animated Chart UI Website built on top of shadcn & recharts. A modern, customizable chart library for React and Next.js applications featuring visually stunning and interactive data visualizations.
A fast, lightweight, and responsive masonry grid layout library.
Light Weight "Headroom Style" scroll intent library that hides the site header on scroll down and shows on scroll up.
A lightweight JavaScript library for creating smart header behavior based on scroll intent. Peek automatically hides your site header when users scroll down and reveals it when they scroll up, creating a more immersive browsing experience.
SPINNERS is a collection of HTML and CSS "loading icon" animations which you can use on your websites, on your apps or on any other place you need to signal your visitors / users that some content is loading.
Open Source CLI to Extract Design Systems & Tokens.
Extract any website’s design system into design tokens in a few seconds: logo, colors, typography, borders, and more. One command.
Extract design tokens from any website with one command. CSS to design system converter with W3C design tokens export.
Turn your terminal into a design engineer
A toolkit for coding agents like Claude Code, Amp, Cursor, OpenCode, and Codex to help you build UIs that don't suck.
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Slow down, pause, or speed up time of any web content.
Debug animations, study cool demos, and make games easier or harder.
A dynamic windowed scrolling table component for react.
HighTable is a virtualized table component for React, designed to efficiently display large datasets in the browser. It loads and renders only the rows necessary for the current viewport, enabling smooth scrolling and performance even with millions of rows. HighTable supports asynchronous data fetching, dynamic loading, and optional column sorting.
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Stop writing CSS like it's 2015.
Modern CSS code snippets, side by side with the old hacks they replace. Every technique you still Google has a clean, native replacement now.
Cloudflare's component library for building modern web applications.
Kumo provides accessible, design-system-compliant UI components built on Base UI. It handles keyboard navigation, focus management, and ARIA attributes so you can build accessible applications without thinking through every detail.
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Ultra-lightweight, semantic, zero-dependency HTML UI component library.
Oat is an ultra-lightweight HTML + CSS, semantic UI component library with zero dependencies. No framework, build, or dev complexity. Just include the tiny CSS and JS files and you are good to go building decent looking web applications with most commonly needed components and elements.
Professionally crafted React & Figma components for building beautiful products or starting your own design system.
UI Components and Blocks Built with Tailwind CSS.
Discover a curated collection of over 100 handcrafted UI components made with Tailwind CSS, React, and shadcn/ui. Designed for seamless integration, these components combine aesthetic precision with developer-friendly flexibility to help you build beautiful, production-ready interfaces faster.
A Sea-Change in the Look of Language by Nick Shinn.
Fonts that simulate the experience of reading in olden days, by diverse means.
Detect CSS Hacks & Modernise Your Code.
ReliCSS is a "CSS hack" detection tool designed to help developers identify and replace outdated browser-specific CSS hacks with modern, standards-compliant alternatives.
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UxNote is a lightweight annotation bar for mockups and websites—drop one script to highlight, pin, and export feedback directly in the browser.
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La classe Vanilla JS universelle pour Google Maps.
MagixMaps est une bibliothèque JavaScript légère, performante et sans dépendances (Vanilla JS), conçue pour intégrer l'API Google Maps (version 2026) dans tout projet web.
Hotpink vous permet de voyager au pays des couleurs web nommées, découvrir des teintes originales et leur histoire, et organiser et créer des palettes stylées.
Build expressive avatars fast.
Create unique, production-ready avatars with our powerful frameworks, beautiful themes, and intelligent predictive tooling. Mix and match to create 101,297,008+ unique combinations. No design skills required.
10M Free Icons & Stock Photos, SVG & PNG. Free Icons and Stock Photos, Made by Humans.
The world’s largest and most diverse collection of high-quality vector icons and photos. Crafted and curated by real human Creators.
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Beautiful, open source, WebGPU-based charting library.
ChartGPU is a TypeScript charting library built on WebGPU for smooth, interactive rendering—especially when you have lots of data.
UI Components & Templates for Ruby on Rails. Stop fighting CSS and build beautiful Rails apps faster.
No more ugly Rails apps. Get professional-looking components and themes that work perfectly with Rails—no design skills required.
build generative UIs for the web. Consistent, cacheable generative UIs for the web.
syntux is the generative UI library for the web. It lets you build generative UIs that are consistent and flexible.
home of open source icons.
Iconify is an opensource library of icons - they also have an API which you can use to get the icon SVG.
AI → JSON → UI. AI-generated UI with guardrails.
When users prompt for UI, you need guarantees. json-render gives AI a constrained vocabulary so output is always predictable.
Predictable. Guardrailed. Fast.
Let users generate dashboards, widgets, apps, and data visualizations from prompts — safely constrained to components you define.
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Beautiful UI components for AI tool calls.
Responsive, accessible, typed, copy-pasteable. Built on Tailwind, Radix, and shadcn/ui. Open Source.
Learn the theory and practice behind great animations with this interactive learning experience.
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smooth squircle corners for HTML elements.
Monoco is a tiny JavaScript library that adds squircles (smooth corners) and other corner types to html elements.
OKLCH Color Pattern Generator.
Oklchroma is a color pattern generator that helps designers and developers create harmonious color scales based on the OKLCH color space. Instead of manually defining each shade, Oklchroma generates a complete set of color variables based on a single base color and using mathematical formulas in CSS to generate the rest of the colors.
Text Symbols Copy and Paste - Cool Symbols ✿ ➹ © ✔ ✦ ❥.
Symbol.so lets you copy and paste cool symbols from over 70 different categories including arrows, stars, hearts, flags, check marks, bullet points, math symbols, and many more. You can copy any symbol with just a click, along with its codes, including Unicode number, Alt code, HTML code, entity, HEX, CSS, and URL-encoded code.
Beautifully crafted animated icons*
an open-source (MIT License) collection of smooth animated icons for your projects. feel free to use them, share your feedback, and let's make this library awesome together.
Collection of animation snippets made for TailwindCSS.
A proof of concept of a viable drag and drop alternative.
Layrr is the visual editor for real code. Design visually, edit any stack, own everything. A browser coding agent interface for selecting elements and sending instructions directly to Claude Code.
Wirebrowser is a debugging, interception, and memory-inspection toolkit powered by the Chrome DevTools Protocol (CDP). It unifies network manipulation, API testing, automation scripting, and deep JavaScript memory inspection into one interface. With features like Breakpoint-Driven Heap Search and real-time Live Object Search, Wirebrowser provides researchers and engineers with precise, high-visibility tools for client-side analysis, reverse engineering, and complex application debugging.
CSS voxel engine for the DOM.
A CSS voxel engine. A 3D grid for the DOM. Renders HTML cuboids by stacking CSS grid layers and applying transforms.
Supports colors and textures, interactions and culling, plus shapes, areas and projections. All without </canvas>.
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Fix Unreadable Colors in Python. Make your text readable for everyone.
CM-Colors automatically fixes your colors so they are easy to read. It finds similar colors that work for everyone, so you don't have to guess.
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Type-safe Composable CSS.
From simple UI styles to full Design Systems, write code using Styleframe’s powerful TypeScript CSS API — AI-ready by design. Write type-safe, composable, future-proof Design Systems code using styleframe's powerful TypeScript CSS API.
A design system for building retro Apple-inspired interfaces.
System.css is a CSS library for building interfaces that resemble Apple's System OS which ran from 1984-1991. Design-wise, not much really changed from System 1 to System 6; however this library is based on System 6 as it was the final monochrome version of MacOS.
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Explore color as we see it. OKLCH Color Picker, Generator and Converter.
Discover how the OKLCH color model works. Learn, experiment and create more consistent and perceptually uniform color palettes.
The current sky at your approximate location, rendered as a CSS gradient.
Exploring how to present Web platform features adoptability.
Baseline gives you clear information about which web platform features work across our core browser set today. When reading an article, or choosing a library for your project, if the features used are all part of Baseline, you can trust the level of browser compatibility. By aligning with Baseline, there should be fewer surprises when testing your site.
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Beautiful spoiler effects
Framework-agnostic web component with Telegram-inspired particle animations. Drop it into React, Vue, Svelte, or vanilla JavaScript in seconds.
Pronounced "Alix".
This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet.
CSS files are available in French, English, Spanish, Greek, Arabic, Portuguese, Russian, Chinese, Polish and Dutch — and leveled or full.
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Create Beautiful Themes for shadcn/ui.
Shadcn Themer is a web application that lets you to create, customize, and share themes for shadcn/ui
Advanced Open Source Website Builder.
Open source website builder and Webflow alternative. Webstudio is an advanced visual builder that connects to any headless CMS, supports all CSS properties, and can be hosted anywhere, including with us.
Webstudio is an Open Source Visual Development Platform for developers, designers, and cross-functional teams. You own the data, components, and infrastructure. You can use the hosted version or roll out your own.
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Useful CSS custom functions using the new @function rule
Design tools and tips for developers in a hurry.
✨😂 2000+ ways to add design flair, user delight, and whimsy to your product.
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