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A little curiosity. A world of open source.
THE FIRST COLLECTIONTwin.macro is a Babel macro that brings Tailwind CSS utility classes to CSS-in-JS workflows, converting tw, css, styled, and theme usages into CSS objects at build time. It supports emotion, styled-components, solid-styled-components, stitches, and goober, with setup examples for Vite, Next.js, Gatsby, Storybook, and more.
React Testing Library is a lightweight solution for testing React components, encouraging tests that mimic real user interactions for better maintainability and confidence.
A privacy-first JSON formatter and validator that runs entirely in the browser, offering one-click formatting, invalid-JSON error messages, clipboard paste and copy, in-editor search, file upload, and light and dark themes.
Terax is a lightweight (~7-8 MB) terminal-first, AI-native development workspace built on Tauri 2, Rust, and React 19, combining a WebGL terminal, CodeMirror editor, git source control, web preview, and an agentic AI side-panel with BYOK or local models.
A curated awesome list of framework-level UI component libraries and design systems, organized by framework such as React, Vue, Angular, Ember, Web Components, Rails and Astro, plus special-use-case libraries, tooling, style guides and community resources.
A comprehensive production-ready boilerplate for Next.js 16+, Tailwind CSS 4, and TypeScript, prioritizing developer experience with a full suite of testing, linting, and monitoring tools.
React-admin is an open-source frontend framework by marmelab for building browser-based single-page admin applications on REST or GraphQL APIs, using TypeScript, React and Material Design. It ships hooks and components for authentication, routing, forms, validation, datagrids, search, i18n and theming.
ToolJet is an open-source platform for building internal tools — admin panels, dashboards and operational apps — on top of existing databases, APIs and SaaS systems. Build visually, from a prompt, or via a coding agent through its MCP server; self-host it or use ToolJet Cloud.
An SSR-safe React wrapper for Takt privacy-friendly analytics, providing a provider component, hooks, declarative event tracking, and a framework-agnostic custom element.
React Bits is an open-source library of 165+ animated, interactive React components for building visually striking websites. It includes text animations, backgrounds, UI elements, and free creative tools.
CopilotKit is an SDK for building agent-native apps with Generative UI, shared state, and human-in-the-loop workflows on React, Angular, Vue, React Native, Slack, and Microsoft Teams. MIT-licensed; the team behind the AG-UI Protocol.
AgnosticUI Local (v2) is a CLI-based, framework-agnostic UI component library that copies component source, styles and tests directly into your project for React, Vue, Svelte or Lit, with 55 accessible components, CSS custom-property theming and AI prompt playbooks.
A web-based application for uploading, parsing, and visualizing Nginx and Apache HTTPD log files. Supports real-time log streaming via WebSocket, interactive charts, filtering, and report generation.
Tremor NPM offers 20+ open-source React components built on Tailwind CSS for building charts and dashboards, including area charts, cards and metric elements with light and dark theme styling.
Twenty is an open-source CRM designed for technical teams to build, ship, and version their customer relationship management system as code.
A curated collection of 500 React interview questions and answers covering core concepts, hooks, Redux, routing, testing and more, aimed at helping developers prepare for React job interviews.
Zustand is a small, fast React state management library using hooks. It provides a simple, unopinionated API for managing application state without boilerplate or context providers.
Free MIT-licensed React admin and dashboard template built on React 19, CoreUI React components and Vite, with AI-assistant context files (.cursorrules, ARCHITECTURE.md, DEVELOPMENT.md) and a ready-made layout, routing and sidebar skeleton.
Taro is an open cross-platform and cross-framework solution that supports writing one set of code with frameworks like React/Vue/Nerv, and compiling it to run on WeChat, JD, Baidu, Alipay, ByteDance, QQ mini-programs, as well as H5, React Native, and other multi-platform applications.
Kokopu-React is a React-based library designed to create and display chessboards and related chess components.
