Ship Your SaaS in Days, Not Months
The only FastAPI + SvelteKit starter that gives you Python backend power, SPA frontend performance, and deploy-anywhere freedom
Built With Modern Stack
Everything You Need for SaaS Success
Skip months of setup and focus on your unique business logic. FastSvelte provides all the essential SaaS infrastructure out of the box.
Complete Authentication
Lucia-compliant auth with PostgreSQL. Email verification, password reset, session management, and role-based authorization - all built-in
Stripe Integration
Full payment processing with webhook handling, subscription management, and billing automation
Multi-Tenant Architecture
Organizations, role-based permissions, team invitations - perfect for B2B and B2C SaaS
AI/ML Ready Python Backend
FastAPI foundation perfect for integrating OpenAI, LangChain, ML models, and data processing
SPA Performance
SvelteKit SPA with instant navigation, client-side routing, and superior developer experience
Deploy Anywhere
Docker-first containerization. Deploy to any VPS, cloud provider, or on-premise infrastructure
Clean Architecture
Enterprise-grade 3-layer API → Service → Repository pattern with dependency injection and testing
Professional UI Components
Beautiful admin dashboard with 50+ pre-built components, charts, tables, and responsive design patterns
AI-Optimized Codebase
Clean project structure and comprehensive documentation make AI tools like Claude, Cursor, and GitHub Copilot incredibly efficient for development
Save Months of Development Time
Stop rebuilding the same SaaS infrastructure over and over. FastSvelte includes everything you need, professionally built and tested, so you can focus on what makes your product unique.
WITHOUT FASTSVELTE
270+ Hours of Setup
≈ 7 weeks of full-time work
Authentication & User Management
Email verification, password reset, session management, user profiles
Payment Integration & Billing
Stripe webhooks, subscription management, invoice handling
Multi-Tenant Architecture
Organizations, role-based permissions, team invitations, B2B features
Admin Dashboard & UI
Professional dashboard UI with 50+ components, charts, tables, forms
Database Setup & Migrations
PostgreSQL schema, migration system, seed data, backup strategies
DevOps & Deployment
Docker containerization, CI/CD pipelines, environment configs
WITH FASTSVELTE
5 Minutes
From clone to running application
FastSvelte in Action
See FastSvelte's complete SaaS infrastructure in action. From authentication flows to payment processing, multi-tenant dashboards to admin panels - everything you need is already built.
James Ford
Designer & Developer
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Developers Love FastSvelte
Join hundreds of developers who've launched successful SaaS applications with FastSvelte's powerful foundation.
Sarah Chen
Full-Stack Developer
FastSvelte saved me months of work. The Python backend is perfect for my AI features, and the SvelteKit frontend gives amazing performance. Finally, a starter that gets both worlds right.
Mike Rodriguez
Startup Founder
Deployed my SaaS in 3 days instead of 3 months. The authentication, payments, and multi-tenancy just work. No vendor lock-in means I can scale anywhere. FastSvelte is a game-changer.
Alex Kumar
Python Developer
Love the clean architecture and dependency injection. Coming from Django, FastSvelte feels professional yet modern. The dashboard components are beautifully crafted.
Choose Your Plan
Start free and scale as you grow. All plans include complete source code, documentation, and deployment freedom. No vendor lock-in, no recurring fees.
Solo
Individual developers
Developer
Multiple projects + support
Team
Teams + full support
All plans include lifetime updates and no recurring fees. Upgrade anytime with 90% credit from your previous purchase.
Questions?
Start Building Your SaaS Today
Join developers worldwide who've shipped successful Python-powered SaaS applications with FastSvelte. No vendor lock-in, deploy anywhere, own everything.
- FastAPI + SvelteKit + PostgreSQL stack
- Complete SaaS infrastructure included
- Deploy anywhere, no vendor lock-in
Frequently Asked Questions
Got questions about FastSvelte? Find answers to the most common questions about our SaaS starter kit.
View DocumentationFastSvelte can be up and running in under 5 minutes with Docker. Simply clone the
repo, run docker compose up, and
you'll have a complete SaaS application running locally with authentication, payments,
and admin dashboard.
Python's FastAPI backend gives you access to the entire AI/ML ecosystem (OpenAI, LangChain, pandas, NumPy), superior performance, and clean architecture patterns. Perfect for data-heavy applications, AI features, and complex business logic that other starter kits can't handle.
Yes! Unlike Next.js starters tied to Vercel or Supabase, FastSvelte uses Docker containerization and works with any PostgreSQL database. Deploy to AWS, GCP, Azure, DigitalOcean, or your own VPS. No vendor lock-in means true freedom.
FastSvelte uses session-based authentication following Lucia guidelines, stored in your own PostgreSQL database. No external auth providers required (though OAuth is supported). Includes email verification, password reset, and secure session management - all under your control.
SvelteKit SPA provides instant navigation without page reloads, superior developer experience, easier state management, and simpler debugging. Unlike SSR frameworks that reload pages, FastSvelte's SPA architecture feels like a native desktop application.
FastSvelte includes a complete admin dashboard with 50+ professional UI components, charts, tables, forms, and responsive layouts built with DaisyUI and TailwindCSS. It's a production-ready interface that would take months to build from scratch.
Yes! You can upgrade anytime with 90% credit from your previous purchase. For example, if you bought Solo for $129 and want to upgrade to Developer ($199), you'll only pay $83 more. This makes it risk-free to start with a smaller plan and upgrade as your needs grow.
Ship production-ready SaaS applications with FastAPI + SvelteKit. Complete authentication, payments, multi-tenancy, and professional UI components - deploy anywhere with zero vendor lock-in.
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