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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ShipAppsFast
ShipAppsFast is an all-encompassing Next.js SaaS boilerplate created to accelerate product launches by incorporating essential features from the start. It provides strong authentication capabilities, featuring options like magic links and social logins, along with complete flows for user registration and password management. The platform simplifies billing and subscription oversight through its integration with Stripe, which effectively handles payments, billing portals, and pricing tables while ensuring automatic database updates via Stripe webhooks. Transactional emails are efficiently managed through Resend, allowing users to customize templates directly using React. The boilerplate is equipped with a diverse range of UI components that are optimized for mobile devices, including elements for landing pages and authentication, all developed with Mantine UI. Additionally, a pre-configured blog system allows for streamlined content management using Markdown files, and it supports multiple languages through the integration of JSON files for translations. This robust technology stack includes Next.js and NextAuth for authentication, among other advanced features, ensuring that developers can quickly and effectively build their applications. Overall, ShipAppsFast stands out as a powerful solution for those looking to launch their SaaS products with minimal delays.
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Dome
Dome is a powerful and all-encompassing boilerplate crafted with Next.js and Tailwind CSS, specifically designed to expedite the development of SaaS Minimum Viable Products (MVPs). It includes a variety of essential features such as a landing page, a countdown timer, and a blog, which allows entrepreneurs to prioritize their market entry strategies and revenue growth instead of concentrating on basic functionalities. The template is equipped with convenient authentication options, including social login capabilities and NextAuth, ensuring that user access is smooth and efficient. Payment processing is made easy through integrations with Stripe and Lemon Squeezy, which provide effective subscription management solutions. To enhance customer interaction, the template incorporates feedback tools like Chatwoot, Papercups, and Crisp Chatbot, along with email service integrations such as Mailgun. Additionally, analytics connections with platforms like Hotjar, Google Analytics, Matomo, and Plausible offer valuable insights into user behavior, enabling informed decision-making for future improvements. This comprehensive setup ultimately empowers entrepreneurs to launch their products with greater confidence and efficiency.
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