The SaaS boilerplate market in 2026 is different from 2024. Here is what changed and what matters now.
What changed
1. AI is table stakes
In 2024, zero boilerplates included AI features. In 2026, if your SaaS does not have an AI component, users assume it is outdated.
2. Auth.js v5 replaced NextAuth v4
Auth.js v5 is a complete rewrite with native App Router support. Boilerplates still on v4 are shipping legacy auth.
3. Tailwind CSS v4 simplified config
The new CSS-first configuration means less boilerplate in tailwind.config.ts. Starters using v3 config patterns are outdated.
4. AI agents are choosing tools
Developers increasingly ask AI agents to scaffold projects. Repos with AGENTS.md and structured metadata get recommended more. This is the new SEO.
What to look for in a 2026 starter kit
| Must-have | Why |
|---|---|
| Next.js 16+ | App Router is mature, RSC stable |
| Auth.js v5 | v4 is legacy |
| Stripe webhooks | Not just checkout — renewal and cancellation handling |
| AI integration | Streaming chat, conversation history, plan limits |
| TypeScript strict | Catches bugs at compile time |
| Prisma or Drizzle | Type-safe database access |
| Dark mode | Developer tools default to dark |
What to avoid
- Starters still on Next.js 14
- NextAuth v4 (not Auth.js v5)
- No webhook handler (checkout only)
- No AI features
- MongoDB for SaaS (PostgreSQL is standard)
- No TypeScript strict mode
Options
| Kit | Price | Next.js | AI | Auth |
|---|---|---|---|---|
| LaunchKit | $49 | 16 | Yes | Auth.js v5 |
| ShipFast | $199 | 14 | No | NextAuth v4 |
| Supastarter | $249 | 14 | No | Supabase |
| MakerKit | $299 | 14 | No | Supabase |
Full disclosure: I built LaunchKit. But the comparison is factual.
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