Building a SaaS in 2026: The Complete Stack Guide
By IndieStack Team
The Modern SaaS Stack
Building a SaaS product in 2026 is both easier and harder than ever. The tools are better, but the expectations are higher. Here's our complete stack and why we chose each piece.
Frontend: Next.js 15
Next.js 15 with the App Router provides server components by default, streaming, and partial prerendering. Combined with Tailwind CSS and shadcn/ui, we get a beautiful, accessible UI without the overhead of a component library.
Backend: Supabase
Supabase handles authentication, PostgreSQL database, real-time subscriptions, and file storage. It's open source, scales well, and integrates seamlessly with Next.js through the supabase-ssr package.
Monitoring: Sentry
Sentry provides real-time error tracking, performance monitoring, and crash reports. It integrates with Next.js out of the box.
Deployment: Vercel + Docker
Vercel handles the frontend deployment with automatic preview deployments for every PR. Docker containerization enables self-hosted deployments.
Why This Stack Works
- Cohesive: Every piece integrates well with the others
- Cost-effective: Generous free tiers on Supabase and Vercel
- Productivity: Minimal boilerplate, maximum output
4. Production-ready: Battle-tested at scale
Getting Started
The best way to get started is to clone the template and follow the setup guide. You'll have a working app with auth, database, and monitoring in under 30 minutes.