Frontegg
Frontegg is a modern Customer Identity and Access Management (CIAM) platform purpose-built for SaaS applications. It gives developers a robust, low-code toolkit to implement advanced identity features like multi-factor authentication (MFA), single sign-on (SSO), passwordless login, and role-based access control (RBAC) without spending weeks wiring up custom flows.
Designed with developers in mind, Frontegg supports rapid integration via SDKs and APIs for Node.js, React, Python, and more. It includes built-in support for OpenID Connect, SAML, OAuth2, and Webhooks, and ships with pre-configured components for login, signup, user management, and organization hierarchies. Whether you're building multi-tenant apps, complex subscription logic, or entitlement enforcement, Frontegg scales with you.
Beyond the initial integration, Frontegg offloads identity maintenance from engineering by enabling non-technical teams to manage identity-related tasks through a secure admin portal. Product, Infosec, and Customer Success teams can enforce security policies, manage users, configure auth flows, and respond to customer needs without dev involvement.
Security teams can monitor and enforce identity compliance standards through real-time dashboards and built-in audit trails. Frontegg also ensures continuous updates to identity protocols, so developers don't have to worry about chasing evolving standards.
Frontegg reduces developer toil, shortens go-to-market timelines, and keeps engineering focused on high-impact product work. All while maintaining the security, scalability, and flexibility required by modern SaaS platforms.
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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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SaaS Starter Kit
The SaaS Starter Kit is an advanced template tailored for developing Next.js applications efficiently and effectively. This template boasts a wide array of features, such as handling subscription payments through platforms like Lemon Squeezy or Stripe, a robust authentication system that includes both magic email sign-in and social OAuth login, and tools for subscription management accessible via customer portals. Additionally, it offers precise roles and permissions for enhanced access control, as well as multi-tenancy functionality, enabling users to set up organizations and invite team members. A modern, SEO-friendly blog is also part of the package, while email workflows are optimized using Resend and React Email. The user interface is designed with Shadcn and Tailwind CSS, allowing for straightforward customization and extension. The kit is responsive for mobile devices, features a fully integrated dark theme, and ensures dedicated support channels via Discord or Reddit. Users also enjoy lifetime free updates and comprehensive, current documentation that aids in quick onboarding and understanding of the codebase. Overall, this starter kit is an all-in-one solution for anyone looking to launch a SaaS product smoothly and effectively.
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SaaSykit
SaaSykit is a Laravel-based framework that accelerates the creation of contemporary SaaS applications by offering an extensive array of ready-to-use components and functionalities. It simplifies the management of subscription-based services and one-time transactions, incorporating payment processing options through platforms such as Stripe, Paddle, and Lemon Squeezy. Within this platform, a customizable admin panel powered by FilamentPHP enables streamlined oversight of products, pricing strategies, plans, and customer subscriptions. Developers have the flexibility to modify the application's design using Tailwind CSS, which allows for adjustments to primary and secondary colors, error pages, email templates, fonts, social sharing graphics, and favicons. SaaSykit also features multi-tenancy capabilities, permitting the development of applications that support multiple tenants with functionalities like team invitations, team oversight, and subscription models based on user seats that seamlessly integrate with payment services. Additionally, it includes a robust user authentication system to enhance security and user management. This comprehensive toolkit empowers developers to build sophisticated SaaS solutions with greater efficiency and customization potential.
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