FusionAuth
FusionAuth is the authentication and authorization platform engineered for developers who demand flexibility and control. Built from the ground up to integrate with any stack, every feature — from user registration to MFA and SSO — is exposed via a modern, well-documented API.
Support for every major identity protocol is included out of the box: OIDC, SAML, OAuth2, JWT, passwordless login, social sign-on, and more. Whether you’re building a greenfield app or retrofitting auth into a legacy system, FusionAuth adapts to your use case — not the other way around.
Need compliance? FusionAuth helps you meet GDPR, HIPAA, and COPPA standards quickly and reliably.
Deploy it your way: install on Linux, Windows, macOS, Docker, or Kubernetes — or go with FusionAuth Cloud, our managed SaaS hosting. No black boxes. No vendor lock-in. Just powerful, customizable auth that works the way you do.
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Auth0
Auth0 takes a modern approach to Identity and enables organizations to provide secure access to any application, for any user. Auth0 is highly customizable, and simple yet flexible. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation.
With Auth0, you can rapidly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control.
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SaaSy Land
SaaSy Land serves as an open-source starter template tailored for Next.js 14 full-stack projects, crafted to streamline the creation and deployment of SaaS offerings, marketing websites, blogs, and additional applications. It features sophisticated authentication options such as email verification, password resets, magic links, and OAuth provider integration, all powered by NextAuth. The template accommodates various database setups, ensuring efficient data handling and quick content delivery. Additionally, it comes with a Markdown and MDX-integrated blog system that supports SEO-friendly content management, along with Stripe integration for hassle-free online transactions and transactional email support via Resend and React Email. Utilizing Tailwind CSS and Shadcn UI components, SaaSy Land guarantees a contemporary and customizable aesthetic. Comprehensive documentation aids in straightforward customization, empowering developers to concentrate on the unique functionalities pertinent to their business. With everything meticulously configured and adhering to industry standards, you can significantly reduce both time and effort in your development process, ultimately allowing for a more efficient launch of your projects.
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Kickstart
Kickstart serves as an all-encompassing boilerplate for Next.js, aimed at streamlining the creation of full-stack applications using React. It melds cutting-edge frontend technologies such as React and Next.js with a backend framework that includes Express and Firebase, all while employing TypeScript to ensure type safety. The toolkit comes equipped with a variety of UI components crafted with Chakra UI and incorporates Firebase Auth for user authentication. For effective data handling, Kickstart leverages Cloud Firestore and Cloud Storage, and payment processing capabilities are integrated through Stripe, covering aspects like payments, invoices, subscriptions, and promotional coupons. Additionally, it features a blog powered by Prismic CMS for seamless content management and facilitates email marketing through integration with ConvertKit. By offering these ready-to-use functionalities, Kickstart allows developers to concentrate on the distinctive elements of their applications, minimizing the time spent on establishing essential components. This enhances overall productivity and encourages innovation in project development.
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