Best Monorepo Boilerplates in 2026

Monorepos: When One Repo Beats Many

A monorepo keeps multiple projects (web app, mobile app, shared UI library, API) in a single git repository. The payoff: shared TypeScript types, shared UI components, shared business logic — and one git push deploys everything in sync.

In 2026, monorepo tooling matured dramatically. Turborepo's remote caching cuts CI times by 80%. Nx's dependency graph visualization makes large codebases navigable. pnpm workspaces are the consensus package manager.

Quick Comparison

Starter	Build Tool	Language	Web	Mobile	Type-Safe	Best For
T3 Turbo	Turborepo	TypeScript	Next.js	Expo	tRPC	Next.js + React Native
Turborepo starter	Turborepo	TS/JS	Any	Any	Manual	General monorepo
Nx workspace	Nx	TS/JS	Any	Any	Manual	Large enterprise monorepos
Bedrock	Turborepo	TypeScript	Next.js	❌	Full	Enterprise web SaaS

The Starters

T3 Turbo — Best Web + Mobile

Price: Free | Creator: Julius Marminge

The canonical full-stack TypeScript monorepo. Next.js web + Expo mobile + shared tRPC API + shared Prisma database + shared auth. One pnpm install, one repo, type safety across all apps.

apps/
├── nextjs/       # Next.js web app
└── expo/         # React Native mobile app
packages/
├── api/          # tRPC router (shared by both apps)
├── auth/         # NextAuth/Lucia config
├── db/           # Prisma schema + migrations
├── ui/           # Shared React components
└── validators/   # Zod schemas (shared validation)

Why it works: Prisma generates TypeScript types from the DB schema. tRPC inherits those types. Next.js and Expo both get the same typed API client. Change a database field once, TypeScript tells you everywhere it needs updating.

Choose if: You're building a web + mobile SaaS from day one.

create-turbo — Official Turborepo Starter

Price: Free | Creator: Vercel

The official Turborepo starter. Two Next.js apps, a shared UI package, and ESLint/TypeScript configs. Framework-agnostic — a pattern to extend, not a complete application.

npx create-turbo@latest my-monorepo

Choose if: You want the minimal Turborepo starting point to build on.

Nx Workspace — Best Enterprise Scale

Price: Free (Nx Cloud paid) | Creator: Nrwl

Nx handles very large monorepos (1000+ packages) that Turborepo can struggle with. Features: affected command detection (only build/test what changed), dependency graph visualization, code generators, and migration schematics.

npx create-nx-workspace@latest myorg

Choose if: You're at enterprise scale (10+ developers, many packages) or need Nx's code generation features.

Monorepo Architecture Patterns

Shared Package Pattern

packages/
├── ui/             # Design system (Button, Card, Input)
├── utils/          # Shared utilities (formatDate, slugify)
├── types/          # Shared TypeScript interfaces
├── api-client/     # Generated OpenAPI client
└── config/         # Shared ESLint, TypeScript, Tailwind configs

tRPC Sharing Pattern

// packages/api/src/router/user.ts
export const userRouter = router({
  me: protectedProcedure.query(({ ctx }) => ctx.user),
});

// apps/nextjs — consumes typed API
const { data: user } = api.user.me.useQuery();
// user is typed as User from Prisma — no manual typing

// apps/expo — same API, same types
const { data: user } = api.user.me.useQuery();
// Identical call, identical types

When NOT to Use a Monorepo

Monorepos add complexity upfront. Don't start with one unless:

• You know you'll have multiple apps (web + mobile, or web + backend)
• Your team understands pnpm workspaces
• You're comfortable with longer initial setup time

Start with a single Next.js app. Add monorepo structure when you actually need it. Premature monorepo setup is a common time sink for solo founders.

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Compare monorepo and single-app SaaS boilerplates on StarterPick.