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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SvelteLaunch
SvelteLaunch: Your Ultimate Svelte 5 Boilerplate for Accelerating SaaS and AI Application Development
Highlighted Features:
- Database and Authentication: Enjoy effortless database management and secure server-side authentication with integrated Supabase functionality right from the start.
- Payments Integration: Simplify payment processing through Stripe, providing users with quick and secure transaction experiences.
- Transactional Emails: Ensure your users stay updated with dependable automated email notifications powered by Mailgun.
- Reusable Components: Enhance efficiency and preserve design consistency with a collection of pre-designed, reusable components specifically crafted for Svelte 5.
- Automated SEO: Improve your online visibility effortlessly using integrated automated SEO tools, helping your project reach a broader audience.
- AI Ready: Benefit from a secure 1:1 coverage API designed for developing AI applications utilizing the OpenAI API.
- Styling: Design stunning websites effortlessly using TailwindCSS and Skeleton UI, allowing for a visually appealing user experience while maintaining responsiveness.
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Just Ship
Just Ship is a completely free and open-source SaaS starter kit crafted with Svelte 5 and SvelteKit, aimed at streamlining web application development by offering a range of essential functionalities right from the start. It features user authentication through magic links and Google social login, while user information is securely stored in a Turso database. The kit comes with more than 30 pre-designed styles powered by daisyUI, ensuring support for dark mode and providing various landing page components to enhance quick UI development. Integrated payment processing via Stripe allows for effortless payment acceptance and webhook management. Analytics are effectively handled through PostHog, which includes configurations that circumvent ad blockers by using Vercel as a proxy, alongside support for A/B testing and feature flags to optimize user engagement. Moreover, it simplifies SEO tag management through the load function and enables email communications via Postmark, with deployment made easy through Vercel, ensuring a comprehensive toolkit for developers looking to launch their applications efficiently. This all-in-one solution not only accelerates the development process but also empowers developers with the tools they need to create robust web experiences.
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