A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.
- architecture
- composition
- modularity
- testability
Repository Index
47,133 repositories indexed
1–24 of 46 · Most stars
🚀🎉📚 Nextjs Boilerplate and Starter with App Router and Page Router support, Tailwind CSS 4 and TypeScript ⚡️ Made with developer experience first: Next.js 16 + TypeScript + ESLint + Prettier + Drizzle ORM + Husky + Lint-Staged + Vitest + Testing Library + Playwright + Storybook + Commitlint + VSCode + Sentry + PostCSS + Tailwind CSS ✨
- nextjs
- next-theme
- next-js
- starter-kit
Sandbox for developing and testing UI components in isolation
💼 An enterprise-grade Next.js boilerplate for high-performance, maintainable apps. Packed with features like Tailwind CSS, TypeScript, ESLint, Prettier, testing tools, and more to accelerate your development.
A Grunt workflow for designing and testing responsive HTML email templates with SCSS.
- litmus
- grunt
- css
- transactional-emails
A well-structured production-ready frontend boilerplate with Typescript, React Testing Library, styled-component, React Query, .env, Axios, Bundle Analyzer, Prettier and 30+ plugins. superplate creates projects for React.js, Next.js, and refine. https://pankod.github.io/superplate/
ASP.NET Core & Angular Universal advanced starter - PWA w/ server-side rendering for SEO, Bootstrap, i18n internationalization, TypeScript, unit testing, WebAPI REST setup, SignalR, Swagger docs, and more! By @TrilonIO
- angular
- universal
- ngrx
- hmr
bUnit is a testing library for Blazor components that make tests look, feel, and runs like regular unit tests. bUnit makes it easy to render and control a component under test’s life-cycle, pass parameter and inject services into it, trigger event handlers, and verify the rendered markup from the component using a built-in semantic HTML comparer.
- razor-components
- unit-testing
- blazor
- blazor-components
Flexible production-grade boilerplate with Next.js 11, Vercel and TypeScript. Includes multiple opt-in presets using Storybook, Airtable, GraphQL, Analytics, CSS-in-JS, Monitoring, End-to-end testing, Internationalization, CI/CD and SaaS B2B multi single-tenancy (monorepo) support
- typescript
- typescript-boilerplate
- zeit-now
- isomorphic-react
A collection of utilities for creating/testing/experimenting with service workers.
- service-worker
🚀 tRPC starter repo with E2E-testing
- nextjs
- starter
- trpc
- typescript
:chipmunk: Simple and complete Svelte DOM testing utilities that encourage good testing practices
Lightweight CSS regression testing
Cross-browser screenshot testing tool for Storybook with fancy UI Runner.
AI-powered E2E testing for 10 platforms. 253 MCP tools. Zero config. Works with Claude, Cursor, Windsurf, Copilot. Test Flutter, React Native, iOS, Android, Web, Electron, Tauri, KMP, .NET MAUI — all from natural language.
Selenium-driven, cucumber-powered CSS testing.
Run your tests with randomization, splitting, and parallelization for beautiful tests.
This ember-cli addon eases the construction of page objects on your acceptance and integration tests
- ember
- ember-cli
- page-object
- pageobject
Advanced, but minimalistic Next.js and Apollo starter
- typescript
- react
- apollo
- testing-library
querySelector that can pierce Shadow DOM roots without knowing the path through nested shadow roots. Useful for automated testing of Web Components. Production use is not advised, this is for test environments/tools such as Web Driver, Playwright, Puppeteer
- webcomponents
- shadow-dom
- javascript
- puppeteer
🔥 JMock is a high-performance data generation and simulation component library implemented in Java.
- functions
- mock
- testing-tools
- dataset
🛡 Official AI Security Tool module for CVE-2026-75604 (Next.js Windows Unauthenticated Remote Code Execution) with safe in-app execution, deep vulnerability validation, and DevSecOps-ready security auditing workflows.
- ai-hacking
- ai-security-tool
- cve-scanning
- cve-tools
Render preact components with access to the produced virtual dom for testing.
A Jest transformer for Svelte - compile your components before importing them into tests.