Best Free SaaS Boilerplates

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The fastest way to build scalable and production-ready SaaS products. Nextless.js is a comprehensive SaaS starter kit designed to expedite the development of scalable and production-ready applications using Next.js and serverless technologies. It integrates essential features such as authentication via AWS Cognito, including email and social logins, multi-factor authentication, and subscription payments through Stripe with webhook support. The platform facilitates team collaboration by allowing users to invite teammates via email and supports multi-tenancy with tenant isolation using the silo model. Developers benefit from built-in user and admin dashboards, customizable forms, and a responsive landing page theme styled with Tailwind CSS. Nextless.js emphasizes a high-quality developer experience by incorporating TypeScript, ESLint, Prettier, and Husky, and leverages the AWS ecosystem, including Amplify, API Gateway, and AWS CDK.

Nextacular is an open source starter kit designed to expedite the development of full-stack, multi-tenant SaaS applications. Built with modern technologies such as Next.js, Tailwind CSS, and Prisma, it offers a suite of out-of-the-box features to streamline the development process. These features include authentication via magic links and social logins through NextAuth, database integration with relational databases like PostgreSQL and MySQL, and multi-tenancy support to serve multiple customers across different subdomains or custom domains using a single unified codebase. Nextacular also provides teams and workspaces functionality, allowing users to invite team members to collaborate within workspaces. The platform includes a customizable landing page, billing and subscription management through Stripe integration, and simple design components built with Tailwind CSS that can be configured according to your design system.

SaaSBold is a full-stack, production-ready Next.js SaaS boilerplate and starter kit, meticulously crafted to enhance both front-end and back-end functionality while prioritizing an optimal developer experience. It integrates essential features such as user authentication via Auth.js, supporting social logins and magic links, and payment processing through Stripe, with upcoming support for Paddle and LemonSqueezy. The platform utilizes PostgreSQL managed by Prisma for efficient database operations and includes transactional email capabilities powered by Resend. Developers benefit from pre-built admin and user dashboards, customizable UI components styled with Tailwind CSS, and a Figma design source for seamless design integration. SaaSBold also offers marketing tools like MailChimp newsletter integration, AI features through OpenAI, and internationalization support for multi-language applications. Deployment is streamlined with a one-click option via Vercel.

Volca is a comprehensive SaaS boilerplate and starter kit designed to accelerate the development and deployment of SaaS applications. It provides a monorepo that includes a high-performance static landing page, a React dashboard, and a Node.js REST API. The landing page is pre-rendered as static HTML files, ensuring quick load times and improved search engine rankings, and is built with React and TypeScript. The dashboard serves as the primary interface for users, offering features such as user registration, subscription management, and team collaboration, allowing users to create projects and invite team members. The backend API is built with Node.js and TypeScript, operating on a serverless architecture that is cost-effective, secure, and performant. Volca integrates secure and reliable authentication out of the box with AWS Cognito, supports social sign-in through providers like Apple, Google, and Facebook, and includes subscription management with Stripe.

The SaaS Startup Kit is an open-source project offering a collection of Go (Golang) libraries and boilerplate code to facilitate the development of scalable software-as-a-service applications. It provides a responsive web application with user authentication, including sign-up and login functionalities, and supports create, read, update, and delete (CRUD) operations. The kit includes a RESTful API with JSON Web Token (JWT) authentication and auto-generated documentation using Swagger. For user interface design, it integrates Bootstrap, enabling the creation of responsive, mobile-first projects. Deployment is streamlined through serverless infrastructure on Amazon Web Services (AWS), with continuous integration and deployment pipelines configured via GitLab CI/CD. By offering these pre-built components and integrations, the SaaS Startup Kit aims to reduce repetitive tasks, allowing developers to focus on unique business logic and accelerate the launch of new software services.

SaaS Forge is an open-source boilerplate designed to expedite the development of SaaS applications by providing a modular, ready-to-use codebase. It utilizes Python for the backend and ReactJS for the front end, incorporating JWT authentication, a RESTful API, and a database ORM integrated with PostgreSQL. The front end features a responsive design based on Bootstrap 4, with pre-built components such as login, registration, email confirmation pages, a single-page application dashboard, profile views, and a collapsible tree menu. The boilerplate includes automated imports of API endpoints, initialization of services and extensions, predefined database models with automatic updates, and customizable themes. Advanced functionalities encompass Stripe payment integration, a user administration dashboard, and social login options like Google authentication. SaaS Forge is compatible with deployment platforms such as Heroku and AWS Elastic Beanstalk.

Launchnow is a comprehensive SaaS boilerplate designed to accelerate the development of web applications, GPT Actions, and AI tools. It integrates SvelteKit for rapid front-end development and NestJS for handling complex backend logic. The platform utilizes PostgreSQL as its database, managed through Prisma ORM, and includes Tailwind CSS for responsive UI design. LaunchNow offers features such as user authentication via OAuth 2.0, payment processing with Stripe, SEO-optimized blogs with automatic sitemap generation, and a headless CMS for scalable content management. By providing these pre-configured components, LaunchNow enables developers to focus on unique aspects of their applications, thereby reducing development time and effort. You get lifetime access to the source code and all future updates. No recurring payments. Everything is written in TypeScript.

ShipFast ASP.NET is a comprehensive SaaS boilerplate designed to expedite the development and deployment of web applications by providing essential components out of the box. Built with ASP.NET, it offers features such as user authentication via ASP.NET Core Identity, payment processing through Stripe integration, and responsive UI design utilizing Bootstrap 5. The platform includes modules for documentation, blogging, user and admin dashboards, and a contact form, all aimed at facilitating rapid product launches. ShipFast ASP.NET supports multiple databases via Entity Framework Core, including MySQL, MSSQL, PostgreSQL, CockroachDB, and SQLite, with a default SQLite configuration for quick startup. It also provides SEO optimization, email services, Dockerfile for containerization, and light and dark theme options. By offering these pre-configured components, ShipFast ASP.NET enables developers to focus on implementing core business ideas, thereby reducing time-to-market.

PeerQuik is a Next.js 14 boilerplate that accelerates the creation of full‑featured B2C and P2P marketplaces by bundling over 23 production‑ready modules into one cohesive foundation. It provides dual‑role authentication (buyers and sellers) with Google OAuth and email/password flows, Stripe payments (one‑time, subscriptions, invoices), ratings, reviews, and favorites, plus a robust admin dashboard. Core utilities include automated sitemap and robots.txt generation, SEO optimizations, newsletter subscription footer, cron job scheduling, dynamic currency conversion, CAPTCHA‑protected forms, and built‑in email notifications. The stack leverages Tailwind CSS for a dark‑mode UI, React Hook Form with Zod for type‑safe validation, PostgreSQL integration, Docker‑ready deployment (Coolify‑compatible), and Vercel or self‑hosted VPS support, ensuring no vendor lock‑in.

BigIdeasDB is a comprehensive idea-validation platform that aggregates and structures real user pain points, proven solutions, and market insights into a unified database. It provides access to thousands of manually verified, real‑world problems scraped from online communities, complete with mention counts, source context, and market‑sizing data, and pairs each with actionable solution examples and curated business ideas. An AI‑powered agent continuously monitors and analyzes discussions across subreddits using pattern detection, autonomously spotting pain points, mapping feature gaps, and generating SaaS solution concepts. Users can explore three core datasets while leveraging integrated analysis, which processes over 150,000 negative software reviews across 350+ categories to pinpoint unmet needs.

Security Building Blocks for Developers. BoxyHQ offers a suite of open-source APIs for security and privacy, helping engineering teams build and ship compliant applications faster, reducing Time to Market without sacrificing their security posture. 1. Enterprise Single Sign On (SAML/OIDC SSO) 2. Directory Sync 3. Audit Logs 4. Data Privacy Vault (PII, PCI, PHI compliant)

Bullet Train is an MIT-licensed Rails-based framework that saves you months of development by starting you off with all the features that are the same in every product, so you can focus on what makes your app unique. Super Scaffolding allows you to generate production-ready views and resource controllers, but it does much, much more, including allowing you to add new fields to existing scaffolds. Teams are the kind of feature where if you don't implement them on day one, they're a real pain to add later. Bullet Train's support here is industry-leading. We've weaved CanCanCan into the fabric of Bullet Train, so whether by web UI or REST API, users can only access the resources and features they're supposed to. Bullet Train comes with a professionally designed UI theme, implemented with our favorite, Tailwind CSS. And because it's MIT-licensed, it serves as a great starting point for creating, distributing, or selling your own Bullet Train themes.