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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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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Launch Leopard
Launch Leopard serves as a SvelteKit boilerplate aimed at accelerating the creation of tools, SaaS platforms, and AI-driven applications by offering a well-rounded collection of pre-configured technologies. By combining SvelteKit with TypeScript, it establishes a solid framework for applications and provides user authentication through Auth.js or Supabase, including options for social logins with Google, GitHub, and Apple. Additionally, the platform streamlines payment processes through Stripe, which simplifies subscription management and invoicing tasks. For efficient data operations, it utilizes Drizzle ORM, compatible with any SQL database, allowing for quick and lightweight query execution. The user interface is designed using TailwindCSS and DaisyUI, incorporating ready-to-use components such as modals, navigation menus, dropdowns, pricing tables, and hero sections to enhance user experience. Email services are efficiently handled by Loops, facilitating the delivery of both transactional and promotional emails, including login links and invoices. Furthermore, Launch Leopard extends its functionality by supporting AI integration via the OpenAI API, making it a versatile choice for modern development needs. This comprehensive setup allows developers to focus more on building unique features rather than getting bogged down by initial configurations.
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UploadThing
UploadThing is a versatile, open-source solution for file uploads tailored specifically for full-stack applications using TypeScript. It streamlines the integration of file uploads by enabling developers to set up File Routes that define permitted file types, size limits, and the number of uploads allowed. The platform offers SDKs compatible with a range of frameworks, such as Next.js, Astro, SolidStart, SvelteKit, and Nuxt, along with backend support for Express, Fastify, H3, and more. Client-side file uploads are made easy through the use of components and hooks, allowing for smooth integration with popular frontend libraries like React and Vue. With a focus on both security and ease of use, UploadThing manages authentication on the developer's server while overseeing the file upload process on its own infrastructure. This method ensures that server-side authorization can be achieved without the burden of file processing on the developer's end, ultimately enhancing the overall user experience. Furthermore, this solution is ideal for developers seeking a reliable and efficient way to handle file uploads in their applications.
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