ShipFast Alternative in 2026: What to Use Instead (Next.js 16)
ShipFast is one of the most well-known SaaS starter kits in the Next.js ecosystem. Marc Lou built something genuinely useful, and thousands of indie hackers have shipped real products with it. Nothing bad to say about it.
But it is 2026, and the Next.js ecosystem has moved fast. If you are starting a new SaaS today, it is worth understanding what ShipFast is built on — and whether that still matches what you want to ship.
This is not a takedown piece. It is an honest comparison so you can make the right call for your project.
What ShipFast Is Built On
ShipFast uses:
- Next.js Pages Router — the older routing model
- NextAuth v4 — the previous major version of Auth.js
- Tailwind CSS v3
- MongoDB or Supabase (your choice)
- Stripe for payments
This stack worked great in 2022–2023. If you bought ShipFast back then, you probably shipped something with it. That is the whole point.
The problem is that Next.js has fundamentally shifted. The App Router is now the recommended approach. React Server Components are the default. And a new generation of tooling — Auth.js v5, Tailwind v4, better AI SDKs — has emerged around it.
ShipFast has not fully moved to this new paradigm. Migrating a popular product is hard. But it does mean you are starting on older foundations.
What the Modern Stack Looks Like in 2026
If you are building a new SaaS today, the recommended stack is:
- Next.js 16 with App Router — file-based routing, layouts, React Server Components
- Auth.js v5 — complete rewrite, proper TypeScript, edge-compatible
- Tailwind CSS v4 — new engine, faster, more expressive
- Prisma + PostgreSQL — type-safe ORM, works with any Postgres host
- Stripe — still the standard
- AI SDK integration — because almost every SaaS needs AI features now
The App Router is not just a cosmetic change. It changes how you think about data fetching, caching, layouts, and middleware. If you start on Pages Router, you will eventually need to migrate — or you will be left behind as the ecosystem moves forward.
Side-by-Side Comparison
| Feature | ShipFast | LaunchKit |
|---|---|---|
| Router | Pages Router | App Router |
| Auth | NextAuth v4 | Auth.js v5 |
| Tailwind | v3 | v4 |
| ORM | MongoDB / Supabase | Prisma + PostgreSQL |
| AI features | None built-in | Vercel AI SDK integrated |
| TypeScript | Partial | Full, strict |
| Price | $169 one-time | $49 one-time |
Where ShipFast Still Wins
ShipFast has real advantages.
Documentation and community. Marc has written excellent docs and there is a large community of ShipFast users. If you get stuck, someone has probably solved your problem.
Battle-tested. Thousands of products have launched with ShipFast. It is a known quantity.
Marc's brand. If you follow the indie hacker community, you know Marc. There is trust built there.
If these things matter most to you — go with ShipFast. It is a solid product.
Where LaunchKit Is Different
App Router from day one. Everything is built around the modern Next.js model. No legacy Pages Router code to navigate around or migrate later.
Auth.js v5. The v5 rewrite is significantly better — proper TypeScript types, cleaner API, edge-compatible sessions. ShipFast still uses v4.
Prisma + PostgreSQL. You own your schema, you own your data. No vendor lock-in to Supabase or MongoDB Atlas. Deploy to Railway, Neon, Supabase Postgres (just the DB), or anywhere else.
AI SDK built in. The Vercel AI SDK is wired up out of the box. You can add streaming AI features to your SaaS in minutes, not hours. In 2026, almost every SaaS has some AI component — LaunchKit assumes this from the start.
Tailwind v4. The new engine. If you are starting fresh, you want the latest.
$49 vs $169. LaunchKit is 70% cheaper. For an indie hacker or solo developer, that difference matters.
When to Choose ShipFast
- You want maximum documentation and community support
- You are already familiar with the ShipFast patterns
- You do not need AI features built-in
- You prefer MongoDB
When to Choose LaunchKit
- You want to build on Next.js App Router from day one
- You care about type safety end-to-end (Prisma + strict TypeScript)
- You need AI features ready to use
- You want the most modern version of every dependency
- Budget matters — $49 vs $169 is a real difference
The Bottom Line
ShipFast is a good product built on an older stack. LaunchKit is built for where Next.js is today.
Neither is objectively better — it depends on what you are building and what you value. But if you want the modern stack — App Router, Auth.js v5, Tailwind v4, AI-native from day one — LaunchKit is the better starting point.
LaunchKit is $49 on Gumroad: https://yongshan5.gumroad.com/l/launchkit-nextjs-saas
Preview the code on GitHub before you buy: https://github.com/huangyongshan46-a11y/launchkit-saas-preview
Built something with LaunchKit? Drop a comment — would love to hear what you shipped.
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