Best React.js Boilerplates

Bedrock is a full‑stack boilerplate for building SaaS products, built on Next.js and GraphQL. It’s designed to take care of the usual foundational work: user authentication, subscription payments (via Stripe), team/project support (multi‑project or multi‑tenant logic, invitations & membership handling), email integration, database setup, API wiring (using e.g. Prisma + GraphQL schema), and general plumbing like linting, formatting, code generation, and CI/testing setup. Importantly, Bedrock ships “unstyled” meaning it doesn’t impose a UI or design system on you. What it gives you is the backend logic, data flow, and structural foundation; the visual layer is entirely yours (or up to whatever UI framework/components you choose). Because of its modular architecture, many of the bundled tools and integrations are optional you can drop or swap parts if they don’t fit your preferences.

Cascade is a free, open-source SaaS starter kit based on the T3 stack (with Next.js + Prisma + PostgreSQL + TypeScript) that aims to give you a “ready-to-code business logic” foundation rather than a full-blown UI framework. Its core philosophy is minimal bloat. Once you clone the repo, provide environment variables and database config, you can have a working backend (auth, DB, basic flows) running locally in minutes. Cascade supports essential SaaS‑app plumbing such as authentication (via Auth.js / NextAuth + Prisma), database setup (PostgreSQL + Prisma), payments & billing (through Lemon Squeezy integration), background jobs (with Trigger.dev), error tracking (via Sentry), analytics (via self‑hostable or free‑plan friendly services like PostHog / Plausible), plus optional “business‑adjacent” pieces: a markdown-based blog via Contentlayer, email flows, server‑side rendering, and basic CI/CD / deployment setups.

Dirstarter is a full-featured boilerplate built with Next.js (with TypeScript) designed for launching directory-style websites. It gives you a ready-made foundation: authentication and user management, admin panel, listing submission and management, payment integration via Stripe, and monetization options (premium listings, featured spots, ads, affiliate-links, etc.). Beyond that, Dirstarter includes SEO-friendly page structure, support for multiple languages (i18n), and built-in tools for content creation (including AI-powered content generation to help bootstrap listings and categories). On the technical side, Dirstarter leans on a modern, maintainable stack: Next.js, a modern ORM (e.g. Prisma), CSS via Tailwind CSS, and UI components from shadcn/ui / Radix UI which means you’ll get a responsive, customizable UI and a code structure that’s relatively straightforward to work with and extend. The value proposition of Dirstarter is that instead of spending weeks building the backbone of a directory site: user flows, payments, listings DB, admin UI, monetization logic, i18n, SEO - you get a working system out-of-the-box and can focus immediately on content, branding, and growth. For someone building a directory or listing-type website (local businesses, tools marketplace, niche listing directory, etc.), this can significantly reduce time to launch. However, adopting Dirstarter also means accepting its architecture and conventions. It’s opinionated: you're committing to the tech choices (Next.js + Prisma + Tailwind + the integrations Dirstarter bundles). If your project requires a drastically different backend setup, custom data models or unusual flows, you may spend extra effort altering or stripping parts you don’t need. Moreover, because it offers a lot of built-in features (payments, content generation, monetization, i18n, admin, etc.), you may end up with more “surface area” than needed which can complicate maintenance if you only need a simple directory.

BoxyHQ SaaS Starter Kit is an open‑source boilerplate built with Next.js intended to give developers a ready‑to‑use foundation for building enterprise‑style SaaS applications. The kit uses a modern, commonly used stack: Next.js + React + Prisma (for database ORM) + PostgreSQL (for persistent storage) + Tailwind CSS (for styling) + TypeScript (for type safety and maintainability).

Gravity is a full‑stack boilerplate for JavaScript/TypeScript projects combining a Node.js backend with a React (or React Native) frontend designed to give developers a head‑start when building SaaS applications. It aims to deliver a working foundation so that you don’t need to assemble all the plumbing (auth, billing, database, UI, API) from scratch. The boilerplate includes support for multiple databases (like Postgres, MySQL, MongoDB, MariaDB and possibly others) which gives flexibility depending on your data/storage preferences. There is also a full “stack” support: server (Node.js + Express/API backend), web client (React + Tailwind or similar), and optionally native mobile clients (via React Native), which helps if you want a unified codebase for web + mobile. Beyond the core stack, Gravity claims to bundle SaaS‑ready features: authentication (email/password, magic links, social logins, 2FA, account security), subscription & billing support (with free plans, trials, seat‑based or usage billing), and a library of UI components & views (dashboard, admin tools, layout components, responsive UI, dark mode, etc.). Gravity also offers a “website/landing page template” (built with a static‑site generator + modern site tooling) useful for marketing, landing pages, pricing pages, etc. — thereby giving you both the “app core” and “public‑facing site” foundation.

LaunchFast is a boilerplate designed to give developers a solid starting point for building modern web applications. It comes with pre-configured templates for frameworks like Next.js, Astro, and SvelteKit, providing authentication, database connections, payment integration, email support, analytics, and content management all set up and ready to go. The goal is to remove repetitive setup work so developers can focus on building the unique parts of their app. LaunchFast also includes SEO-friendly routing, page templates, and a basic UI scaffold, making it easier to launch functional web apps or SaaS projects quickly. While it speeds up initial development, adopting LaunchFast means following its chosen stack and architecture, so projects that require a highly customized setup may need adjustments or modifications to the default structure.

Loopple Boilerplate is a commercial boilerplate and low‑code builder built around Next.js + Tailwind CSS + Supabase (for auth & database), providing a ready‑made foundation for web apps, dashboards or SaaS‑style projects. What makes it more than just a UI kit is that it also integrates payment support (via Paddle), optional AI‑powered features (through OpenAI APIs), and offers a drag‑and‑drop page/dash‑builder to generate app templates without having to code layout by hand. Out of the box you get pre‑built demo pages, landing page, login page, dashboard, pricing, AI‑generator (if using AI features), projects page and a 404 along with a catalog of Tailwind components and UI elements that you can export as a clean Next.js project. The idea behind Loopple Boilerplate is to save you the many hours typically spent wiring authentication, database, UI scaffolding, payments, and basic page structure, so you can jump sooner into building actual product logic. Because it bundles backend (Supabase + auth + DB) and frontend (Next.js + components + builder + pages) together, Loopple can serve as a quick “jump‑start” boilerplate if you plan to build a modern web application, SaaS product, or dashboard that needs auth, user management, payment/subscriptions, and a ready UI shell.

MakerKit is a SaaS‑starter boilerplate built for modern React/Next.js (also supporting Remix/Supabase or Firebase variants) that tries to give you a production‑ready foundation, rather than a barebones template. At its core MakerKit bundles authentication (email, social login, magic‑link, optional MFA), user and team/organization management (multi‑tenancy, roles, invitations), and subscription/billing support via payment providers (Stripe or Lemon Squeezy). The boilerplate comes styled by default using a modern UI stack with Tailwind CSS (and Shadcn/Radix‑based UI components), with light/dark mode and includes UI scaffolding for dashboards, admin panels, marketing pages, blog/documentation pages, and a customizable layout structure. MakerKit aims to reduce the time and effort needed to ship a SaaS: instead of wiring up auth, payments, data layer, UI and common SaaS flows from scratch, you get a working skeleton that you can extend, customize, and build on. This includes also support for serverless or traditional hosting setups, built‑in support for sending stylized transactional emails, and optional plugins/features (like documentation/blog generation, admin dashboards, analytics hooks, and more) to help bootstrap both the product and its public-facing/marketing side.

Nextacular is a free, open‑source SaaS boilerplate built on Next.js (with React), using Prisma for database/ORM and styled with Tailwind CSS. It comes pre‑wired with core SaaS features: user authentication (magic‑link, OAuth/social logins via NextAuth.js), database integration (Prisma + a relational DB, e.g. PostgreSQL), multi‑tenant and workspace/team support, billing and subscription management via Stripe, customizable landing page and frontend scaffold, basic SEO setup, and email/communication support (for transactional emails, etc.). It also offers deployment‑friendly setup (with a one‑click deploy option for Vercel) and a modular, modern stack which can save significant time compared to building all infrastructure yourself. Nextacular is a good fit when you want to build a SaaS product that expects multiple organizations/teams, subscription billing, user authentication, and you prefer a clean, battle‑tested tech stack (Next.js + Prisma + Tailwind + Stripe). It’s especially attractive if you want to go from idea to a working prototype or MVP quickly without wiring all backend and billing/payment logic manually.

SaaS Starter Kit is a boilerplate/template for building full‑featured SaaS or web apps using Next.js + React + Tailwind CSS + modern tools/stack conventions. The template includes a complete backend + frontend foundation: user authentication (email, social OAuth, magic‑link), subscription payments and billing flows via Stripe or LemonSqueezy, subscription management (update/cancel/subscription portal), and multi‑tenancy support (organizations, team invites, roles & permissions) for apps that require team or org‑based access control. On the frontend side you get a pre‑made UI built with Tailwind + shadcn/ui, mobile/tablet responsiveness, dark‑mode support, and a set of ready‑to‑use pages: landing, pricing, blog, dashboard, admin panel plus built‑in support for email workflows (via Resend + react‑email), blog/content management, and basic marketing/ public‑facing site templates. The codebase is designed to be production‑ready: after setting environment variables you can deploy right away (optimized for deployment on services like Vercel). The project claims clean, modular architecture and full access to code so you own your code and can adapt it as needed. Because the kit is relatively feature‑rich (auth, payments, roles/permissions, multi‑tenant/org support, blog/marketing pages, email workflows, UI scaffolding, etc.), it may feel heavier than minimal templates, which for simple apps, prototypes or highly customized projects might introduce overhead.

Saas UI is a premium starter kit / boilerplate built on Next.js (with React + TypeScript) designed specifically for building SaaS and B2B web applications quickly and with solid structure. It pairs a rich UI/design system with the backend scaffold and common SaaS plumbing so you don’t have to build everything from scratch. Right away you get a full-featured component library and design system prebuilt UI components, themes, responsiveness, dark/light mode support all optimized for building dashboards, admin panels, web apps or SaaS products. On the functionality side, Saas UI ships with support for user authentication (login/signup, social login options, account management), workspace/team/organization support (workspaces, team invites, role-based access), subscription & billing flows with Stripe (subscription plans, per‑seat or team‑based billing, metered usage and entitlement management), and built‑in support for multi-tenancy / per‑workspace billing/perms. The stack includes a modern backend API layer (via tRPC), a database setup that works with PostgreSQL (and other options), and a dev environment optimized for productivity (TypeScript, Turborepo/monorepo friendly configuration, sensible defaults for linting/formatting).