Build Your Product, Not the Plumbing
FastAPI + React foundation for SaaS with auth, payments, multi-tenancy, plus AI-ready credit metering and billing.
Built With Modern Stack
Everything You Need for SaaS Success
Skip months of setup and focus on your unique business logic. FastReact 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.
See docsStripe 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
See docsAdmin & User Dashboards
Separate admin and user interfaces with role-based access, analytics, and management tools.
See docsLanding Page Template
Conversion-focused marketing template, SEO-optimized out of the box: self-referencing canonicals, clean meta descriptions, and Open Graph / Twitter cards.
See docsAI Credit Billing
Meter AI usage by token, give every plan a monthly credit allowance, and let users top up. Subscription and pay-as-you-go, already wired up.
See docsSPA Performance
React SPA with instant navigation, client-side routing, and superior dev experience.
See docsClean Architecture
Enterprise-grade 3-layer API → Service → Repository pattern with dependency injection and testing
See docsDeploy Anywhere
Docker-first containerization. Deploy to any VPS, cloud provider, or on-premise infrastructure
See docsTransactional Email
Resend, SendGrid, or Azure. Email verification, password reset, and invitations included out of the box.
See docsBuilt-in AI Integration
A working sample AI app wired end to end: LLM calls, streaming responses, and usage tracking you can adapt to your own product.
See docsSave Months of Development Time
Stop rebuilding the same SaaS infrastructure over and over. FastReact includes everything you need, professionally built and tested.
Authentication System
40+ hours savedComplete user management with OAuth, email verification, and secure sessions
Payment Processing
45+ hours savedStripe subscriptions and webhooks, per-plan usage limits, and AI credit metering with top-ups
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?
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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 FastReact 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 + React) 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 FastReact, you're not buying from a faceless template shop. You get direct access to me for support.
Ship production-ready SaaS applications with FastAPI + React. Complete authentication, payments, multi-tenancy, and admin dashboards - deploy anywhere with zero vendor lock-in.
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