Next.js SaaS starter with PostgreSQL
Your Next.js SaaS needs a real data layer. The PostgreSQL adapter includes user records, waitlist patterns, and billing-friendly schemas you can swap later without rewriting helpers.
The problem
A Next.js SaaS with PostgreSQL sounds simple until you need user records, verification tokens, and billing state in the same schema with swappable helpers.
Building it yourself
Scaffold Next.js, find a PostgreSQL tutorial, wire env vars, fix auth sessions, then repeat for billing and email. Most teams lose weeks before the stack deploys cleanly or handles real users.
What you get out of the box
- SQL helpers for users and billing state
- Works with Neon, Xata, Supabase, or self-hosted Postgres
- Swap providers with env changes
How teams ship with this kit
- 1
Clone and configure
Add your PostgreSQL keys and provider settings to the included env template. The Next.js app boots with the integration active.
- 2
Customize product flows
Adjust pages, pricing, and onboarding on top of pre-wired routes. Auth, webhooks, and integration helpers stay intact.
- 3
Deploy with included configs
Use the bundled Vercel, Cloudflare Workers, or Node deployment setup. Sessions and webhooks are tuned for production, not just localhost.
- 4
Swap providers later
Client wants a different payment processor or database? Change adapters through config instead of rewriting your Next.js app.
Also ships with every Next.js kit
- User auth flows
- Waitlist capture
- Email verification
- Swap-friendly helpers
Common questions
Is this only about PostgreSQL?
No. The Next.js kit is a complete SaaS foundation. PostgreSQL ships alongside auth, billing, email, analytics, storage, and deployment so you are not assembling the stack from scattered tutorials.
Can I see it working before I buy?
Yes. The live demo runs the same Next.js starter with real auth and billing flows. Open the demo, click through signup and checkout, then compare with your timeline.
What if I need Astro or SvelteKit instead?
LaunchFast ships the same integration surface in all three frameworks. Related links on this page point to the PostgreSQL guides for Astro and SvelteKit too.