Next.js SaaS Boilerplate Comparison Table (Updated March 2026)

Updated comparison of every major Next.js SaaS boilerplate as of March 2026. Kit Price Next.js Auth AI DB Email TS Strict LaunchKit $49 16 Auth.js v5 ✅ Prisma/PG Resend ✅ ShipFast $199 14 NextAuth v4 ❌ MongoDB Mailgun ❌ Supastarter $249 14 Supabase ❌ Supabase Resend ✅ MakerKit $299 14 Supabase ❌ Supabase Resend ✅ Gravity $149 — Custom ❌ PostgreSQL — ❌ SaaS Pegasus $249 — Django ❌ PostgreSQL — — What the columns mean Next.js version: 16 is current. 14 is two major versions behind. App Router matured significantly between 14 and 16. Auth: Auth.js v5 is the current standard with native App Router support. NextAuth v4 is legacy. Supabase Auth locks you into the Supabase ecosystem. AI: Does the boilerplate include a working AI chat interface with streaming? In 2026, this is increasingly expected. DB: Prisma + PostgreSQL gives maximum flexibility (deploy anywhere). Supabase locks you in. MongoDB is unusual for SaaS. TS Strict: TypeScript strict mode catches entire categories of bugs at compi