Best Tech Stack for a SaaS Startup in 2026
A practical SaaS architecture covering frontend, backend, database, authentication, payments and hosting.
Reviewed for 2026 • Technology pricing and capabilities can change.
A strong default SaaS stack
For many web SaaS MVPs, Next.js, PostgreSQL, managed authentication, Stripe and a managed hosting platform provide a productive starting point. The exact choice should follow your team's experience and requirements.
Supabase can combine PostgreSQL, authentication and storage for teams that want fewer infrastructure components.
Generate my stackFrontend and backend
Next.js can provide a unified web application with routing, server-side capabilities and a mature React ecosystem. A separate backend may be justified when multiple clients, complex services or independent scaling require it.
Keep the initial application boundary simple. Extract services when a real operational or organizational reason appears.
Database and payments
PostgreSQL is a strong general-purpose choice for SaaS because subscriptions, users, organizations and permissions are naturally relational. Stripe can handle payment workflows where it is supported, but pricing and payment availability vary by market.
Estimate infrastructure and payment costs before launch rather than assuming they will remain negligible.