Ship Your SaaS in Hours, Not Months
Stop rebuilding auth, payments, and multi-tenancy for every project. FastSvelte is a production-ready FastAPI + SvelteKit foundation with everything wired up.
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
Username/password and Google OAuth login, email verification, password reset, and role-based access.
Stripe Integration
Payment processing, webhook handling, subscription management, and billing automation.
See docsMulti-Tenant Architecture
Organizations, role-based permissions, team invitations - perfect for B2B and B2C SaaS
Admin & User Dashboards
Separate admin and user interfaces with role-based access, analytics, and management tools.
Landing Page Template
Professional marketing site template with SEO optimization and conversion-focused design.
AI/ML Ready Python Backend
Python FastAPI backend with OpenAI integration demo. Perfect for AI/ML features and data processing.
SPA Performance
SvelteKit SPA with instant navigation, client-side routing, and superior dev experience.
Clean Architecture
Enterprise-grade 3-layer API → Service → Repository pattern with dependency injection and testing
Deploy Anywhere
Docker-first containerization. Deploy to any VPS, cloud provider, or on-premise infrastructure
Transactional Email
Resend, SendGrid, or Azure. Email verification, password reset, and invitations included out of the box.
AI-Optimized Codebase
Detailed CLAUDE.md, clean structure and docs make Claude Code, Cursor, and Copilot incredibly efficient.
Save Months of Development Time
Stop rebuilding the same SaaS infrastructure over and over. FastSvelte includes everything you need, professionally built and tested.
Authentication System
40+ hours savedComplete user management with OAuth, email verification, and secure sessions
Payment Processing
30+ hours savedStripe integration with webhooks, subscriptions, and billing management
Multi-Tenant Architecture
60+ hours savedOrganizations, role-based access, team invitations, and B2B features
Admin & User Dashboard
40+ hours savedAdmin and user interfaces with role-based access and management tools
Database & Migrations
20+ hours savedPostgreSQL setup, schema migrations, and data management
Email & Landing Page
25+ hours savedEmail system with templates, plus professional marketing site with SEO optimization
Buy once, build forever!
One-time purchase, no recurring fees. All plans include complete source code, documentation, and deploy-anywhere freedom. No vendor lock-in.
Solo
Buy once. Build unlimited projects!
Developer
Buy once. Build unlimited projects!
Team
Buy once. Build unlimited projects!
No recurring fees. Upgrade anytime with 90% credit from your previous purchase.
Questions?
Got questions?
Find answers to the most common questions about FastSvelte below.
Have other questions?
Can't find what you're looking for? We're here to help.
Meet the builder
Hi, I'm Harun, an ex-Amazon software and AI engineer with 15+ years building scalable cloud apps, AI systems, and SaaS products. Based in Toronto.
I built FastSvelte because I kept wiring the same auth, billing, and multi-tenant scaffolding across my own products and client projects. So I packaged the production stack I was actually using (FastAPI + SvelteKit) into a starter other devs can ship from.
I'm actively building with it myself. BrokerGuard, an AI-powered insurance fraud detection platform, runs on this exact stack. When you buy FastSvelte, you're not buying from a faceless template shop. You get direct access to me for support.
Ship production-ready SaaS applications with FastAPI + SvelteKit. Complete authentication, payments, multi-tenancy, and admin dashboards - deploy anywhere with zero vendor lock-in.
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