Next.js Authentication Boilerplate

Production-ready Next.js auth boilerplate with Better Auth — OAuth, MFA, passkeys, organizations, billing, and admin in one lifetime license.

Next.js

Auth

Try TurboStarter Read auth docs

Only 7 licenses left before price increase

trusted by 353+ founders

What makes it different?

Focus on your product, not setup

Everything you need to launch your SaaS in no time. Get all the core functionalities and integrations out of the box, so you can focus on making money.

Cross-Platform Development

Build for web, mobile, and browser extension simultaneously with a unified codebase.

export const billingRouter = new Hono()
  .post(
    "/checkout",
    validate(
      "json",
      z.object({ plan: z.object({ id: z.string() }) }),
    ),
    enforceAuth,
    async (c) => {
      logger.time("checkout");
      const result = await checkout({
        user: c.var.user,
        ...c.req.valid("json"),
      });

      await db.insert(orders).values({
        externalId: result.id,
        userId: c.var.user.id,
      });

      await sendEmail({
        template: EmailTemplate.INVOICE,
        to: c.var.user.email,
        variables: { user: c.var.user, ...result },
      });

      track("checkout.created", {
        userId: c.var.user.id,
        checkoutId: result.id,
      });

      logger.timeEnd("checkout");
      return c.json(result);
    },
  ).post("/webhook", (c) => webhookHandler(c.req.raw));

Authentication

Comprehensive auth flow with email/password, magic link, social login, and two-factor authentication.

or continue with

Billing

Subscriptions, one-time payments, metered usage, per-seat, and credits - with org billing and popular providers built in.

One-click Deployment

Publish all your apps to all users with a single command. No more manual work.

Wait! There's more!

25+ SaaS Ideas

Don't know what to build? We have 25+ ready-to-use ideas to get you started. Rated 5.0 by 100+ users.

web mobile extension

Internationalization

Reach a global audience with built-in multi-language capabilities. Internationalization supported out of the box.

web mobile extension

Organizations/teams

Group users together in organizations and assign roles or permissions to them. Best fit for B2B SaaS and RBAC structures.

web mobile extension

AI-assisted development

Dedicated rules, skills, agents and commands for most popular AI editors and tools to generate code faster and more accurately.

web mobile extension

SEO, Sitemaps & Marketing

Meta tags, social media images, store listing, sitemaps, marketing presence and more.

web mobile extension

Landing Page

Conversion-ready marketing pages - hero, features, pricing, testimonials, waitlist, and newsletter signup — ready to ship.

web

Tips & Tricks

How to market your SaaS, tech stuff, SEO hacks, mobile reviews tricks and many, many more.

web mobile extension

CLI

Create a new app with a single command - customize providers, bootstrap config and deploy right from your terminal.

web mobile extension

AI integration

Built-in support for multiple providers allowing you to ship your next AI SaaS in minutes.

web mobile extension

A Next.js auth boilerplate that ships billing too

Most Next.js authentication boilerplates give you login screens and stop. TurboStarter ships Better Auth with organizations, billing webhooks, admin tooling, and clients for web, mobile, and extension — so authentication is one layer in a product you can charge for.

If you are comparing Next.js Better Auth boilerplate options, ask whether the kit includes MFA, passkeys, team invites, and plan-gated API routes — not just OAuth callbacks.

TurboStarter Core is a production auth boilerplate plus billing, teams, and marketing — one lifetime license with lifetime updates on Core.

Auth docs to start from

Auth overview

How Better Auth is configured in TurboStarter and how sessions flow through the app.

Configuration

Environment variables, providers, and security settings.

OAuth setup

Wire Google, GitHub, Apple, and custom providers.

2FA and passkeys

Production-grade MFA without bolting on a second auth system.

Complete auth system out of the box

Multiple sign-in options — email/password, magic links, and social OAuth
Session management — secure JWT and database session handling
User profiles — customizable fields and account settings
Admin controls — user management dashboard and impersonation
Security features — rate limiting, CSRF protection, and audit hooks

Security-first by default

Advanced security features

Multi-factor authentication — TOTP, SMS, and email 2FA with backup codes.

Rate limiting — protection against credential stuffing and brute-force attacks.

Session security — secure cookies, rotation, and device-aware policies.

Provider coverage — Google, GitHub, Apple, and enterprise OAuth patterns.

Account linking — connect multiple providers to one user without duplicate accounts.

TurboStarter vs ShipFast for auth

ShipFast is a popular indie boilerplate centered on NextAuth conventions. TurboStarter defaults to Better Auth + Drizzle + Postgres with MFA, passkeys, and multi-platform clients.

Capability	TurboStarter	ShipFast
Auth library	Better Auth (MFA, passkeys, org permissions)	NextAuth / Auth.js patterns
Database	Postgres + Drizzle (SQL-first)	MongoDB or Supabase conventions
Mobile app	Expo app with shared sessions	Web-only
Browser extension	WXT extension included	Not included
Organizations / RBAC	Built into Core	Limited compared to B2B-focused kits
Best fit	Teams who want Better Auth and multi-platform SaaS	Solo founders shipping a web MVP fast

Need the full breakdown? Read TurboStarter vs ShipFast.

Billing — Stripe, Lemon Squeezy, Polar, or Dodo with entitlement gating
Organizations — invites, roles, and team-aware billing
Admin — dashboard, impersonation, and user management
API — Hono routes with session middleware and a typed RPC client
Marketing — landing, pricing, blog, docs, and SEO patterns
Mobile + extension — same auth and API on every client

Explore the web installation guide to see the full monorepo layout.

Who this boilerplate is for

Founders who need a Next.js auth boilerplate that reaches production security
Teams outgrowing tutorial auth stacks before their first paying customer
B2B SaaS with organizations, invites, and role-based access
Developers comparing ShipFast, LaunchSaaS, or free starters who want Better Auth

Sounds goodNow let's make it real. In minutes.

Try TurboStarter

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Pricing

Production auth without the rebuild

One lifetime license. Better Auth, billing, and organizations included — skip the tutorial stack.

Only 7 licenses left before price increase

Core Kit

All SaaS features, ongoing updates, lifetime access and many more to help you ship faster.

$249$349

Lifetime license

Get lifetime access

AI-first codebase
Web boilerplate (Next.js)
Mobile boilerplate (React Native - Expo)
Browser extension boilerplate (WXT)
Billing
SEO, Marketing & Feature flags
Multi-tenancy - organizations/teams
Internationalization (i18n)
API, Auth & Admin
1-click deployment
Built-in MCP + CLI for common tasks
25+ ready-to-launch SaaS ideas
Private Discord community
Lifetime updates

🔥 Bundle

All-in-One

Best choice to ship your startup in minutes. Includes Core + AI starters and ongoing updates.

$399$499

Lifetime license

Get lifetime access

Everything in Core Kit, and ...

AI Kit ($249 value)

All AI features, daily updates, and unlimited access to advanced templates.

10+ production-ready AI templates for web and mobile
Multiple AI providers & models support
Tool calling, memory, rate-limiting, credit-based access and more...
Data persistence

353+ founders love it

Prices in USD. VAT may apply. By purchasing, you agree to the EULA and Terms of Service.

Any doubts?

Book a FREE call or ping us on Discord. Happy to help!

Testimonials

Loved by founders worldwide

Read why tech and non-tech (!) people are raving about TurboStarter and how it has accelerated their product launches.

Top SaaS starter kitby Vercel

Kudos for shipping! The landing page looks very nice.

Lee Robinson

Teacher @Cursor, prev @Vercel

I have to say, the approach to product/system design has really impressed me.It's truly become a gold standard that I look up to. Keep it up!

Marcus Quinn

Founder of @Evergreen

The best starter on the market, don't overthink it. Worth every penny. Just buy it!

Vadym Petrychenko

Founder of @Omichat

Maybe you?Start building now

TurboStarter's solid architecture and built-in AI guidance let me ship faster without sacrificing quality. I've built projects for all 11 of my new clients with it.

Rodrigo Sumioshi

Founder of @Shibui

TurboStarter sped up my coding process. Being affordable and packed with features, it was the difference between idea and execution.

Gabe Corr

Software Engineer

Revenue of ClaudeFast in one month period

Built with TurboStarter

TurboStarter exceeded my expectations - setup was super fast, and I was building features right away. If you want to skip boilerplate and move fast, this kit is for you!

Abdo El-Mobayad

Founder of @ClaudeFast

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