Best Multi-Tenant SaaS Boilerplates in 2026

TL;DR

Every B2B SaaS needs multi-tenancy — one codebase serving hundreds of organizations, with each org's data locked away from every other. The four boilerplates that handle this best: Supastarter ($299, most complete), Makerkit ($299, most modular), Bedrock ($249, Clerk-powered), and Volca ($150/year, cleanest minimal option). All four save weeks of engineering work you'd otherwise spend building team management, per-seat billing, and row-level data isolation from scratch. Choose based on your stack preferences and whether you want a modular plugin system or an all-inclusive integrated platform.

Key Takeaways

All four include row-level data isolation. No tenant can read another's data without explicit bugs in your code.
Supastarter is the most feature-complete with 86+ community reviews averaging 4.7/5 — multi-tenancy, 5 payment providers, background jobs, and file storage all pre-wired.
Makerkit is the most modular — plugin architecture means you only pull in what you need, and you can swap auth providers and payment processors without rewriting your app.
Bedrock is the best choice if you're on Clerk — org management, roles, and invitations come pre-configured via Clerk's organization primitives.
Adding multi-tenancy post-launch costs 2–4 weeks of engineering. If B2B is the plan, choose a multi-tenant boilerplate from day one.

Why Multi-Tenancy Is Non-Negotiable for B2B

Single-tenant SaaS is fine for consumer tools. For B2B — any product where your customers are businesses adding team members — multi-tenancy is not optional. Your customers expect to:

Create an organization and invite teammates
Assign roles (owner, admin, member, viewer)
See only their data — invoices, projects, records scoped to their org
Manage billing per organization — per-seat pricing, upgrades, cancellations
Transfer ownership when someone leaves

Building this from scratch in a standard Next.js project takes 2–4 weeks. Add multi-tenant billing on top and you're looking at another week. That's a month before you've written a single line of your core product.

The boilerplates in this guide include all five primitives. You customize; you don't architect.

Data Isolation Approaches

Row-Level Security (Most Common)

-- Each table has an organization_id column
-- PostgreSQL RLS policies enforce tenant isolation
CREATE TABLE documents (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  organization_id UUID NOT NULL REFERENCES organizations(id),
  title TEXT NOT NULL,
  content TEXT,
  created_at TIMESTAMPTZ DEFAULT NOW()
);

ALTER TABLE documents ENABLE ROW LEVEL SECURITY;
CREATE POLICY tenant_isolation ON documents
  USING (organization_id = current_setting('app.current_org_id')::UUID);

All four boilerplates in this guide use row-level security. It's the right choice for most SaaS: strong isolation, simpler to operate, and queryable across tenants when your admin tools need it.

Schema-Based (Stronger Isolation)

-- Each tenant gets a dedicated PostgreSQL schema
-- Higher isolation but harder to manage at scale
CREATE SCHEMA tenant_abc123;
CREATE TABLE tenant_abc123.documents (...);

Schema-based isolation is overkill for most SaaS products. It's used by enterprises with strict compliance requirements (HIPAA BAAs, SOC2 Type II). Unless a lawyer is telling you it's required, row-level security covers 99% of use cases.

Database-Per-Tenant (Maximum Isolation)

Separate database per tenant — reserved for enterprises with legal data residency requirements. Architecturally expensive and rarely necessary before $1M ARR.

Quick Comparison

Starter	Price	Auth	Isolation	Billing	Admin	Rating
Supastarter	$299 one-time	Supabase / Better Auth	Row-level + RLS	Stripe + 4 more	✅	4.7 (86 reviews)
Makerkit	$299 lifetime	Supabase Auth or Better Auth	Row-level	Stripe, Paddle, Lemon Squeezy	✅	4.8 (64 reviews)
Bedrock	$249 one-time	Clerk	Row-level	Stripe	✅	4.4 (29 reviews)
Volca	$150/year	Custom JWT	Row-level	Stripe	⚠️ Basic	—
Nextacular	Free	NextAuth	Row-level	Stripe	⚠️ Basic	—

Supastarter — Most Complete B2B Platform

Price: $299 (Solo) / $799 (Startup) / $1,499 (Agency, white-label) Stack: Next.js 15 + Supabase + Better Auth + Turborepo monorepo

Supastarter is built as an integrated platform — everything arrives pre-wired and working from pnpm dev. The multi-tenancy implementation is the most comprehensive in the Next.js boilerplate market: organizations with custom slugs, email invitations with accept/reject flows, role-based access control, per-organization billing, and organization switching in the UI.

What You Get for Multi-Tenancy

Organization creation, management, and deletion
Email invitation system with pending/accepted/rejected states
RBAC with owner, admin, and member roles (customizable)
Per-organization Stripe billing with seat-based pricing
Organization switcher in navigation
Super admin panel with impersonation
Pre-written RLS policies for all tables
Data scoped at the API layer AND database layer (defense in depth)

// Supastarter's organization-scoped API — automatic tenant isolation
const documents = await prisma.document.findMany({
  where: {
    organizationId: ctx.organizationId,  // From session context
    // No other org's documents can leak here
  },
});

Who It's Best For

Supastarter's integrated platform shines when you want to start building business logic on day one without assembling infrastructure. The trade-off: you inherit a larger codebase. If you don't need file storage or the AI chatbot, those packages still live in your monorepo.

Best for: Teams building a complete B2B SaaS product who want 5 payment providers, file storage, and background jobs pre-wired alongside multi-tenancy.

Pros:

Most features pre-configured (background jobs, storage, AI chatbot)
5 payment providers including Polar and Dodo Payments for global reach
30-minute architecture consult included with Startup plan ($799)
Nuxt support alongside Next.js

Cons:

Larger initial codebase to navigate
More expensive team plan ($799 vs $599 for Makerkit)
No plugin system — all features bundled regardless of use

Makerkit — Most Modular Architecture

Price: $299 (Pro, 1 dev) / $599 (Teams, 5 devs) — lifetime license Stack: Next.js 15 + Supabase or Drizzle or Prisma 7 + Better Auth

Makerkit approaches multi-tenancy through its plugin architecture — the core is lean, and you install features via a CLI-driven plugin system. The multi-tenancy primitives are in the core: organizations, invitations, RBAC, and per-organization billing. Everything else (analytics, error monitoring, roadmap, waitlist) is a plugin you install only when needed.

What You Get for Multi-Tenancy

Organizations with personal-only, organization-only, or hybrid account modes
Email invitations with configurable roles
RBAC with custom role definitions
Stripe, Paddle, and Lemon Squeezy billing with per-seat and metered models
Three database stacks: Supabase, Drizzle + Better Auth, Prisma 7 + Better Auth
Super admin dashboard with user impersonation
400+ page documentation

The database flexibility is Makerkit's standout feature. Most boilerplates lock you into one database approach. Makerkit lets you choose between Supabase (with RLS pre-configured), Drizzle (lighter ORM, edge-ready), or Prisma 7 (most mature TypeScript ORM). Switching later is a documented migration path, not a rewrite.

Best for: Solo developers and small teams who want modular control, the ability to swap providers, and a lean codebase without bundled features they don't use.

Pros:

Plugin system keeps codebase minimal
Three database stacks with documented migration paths
React Router (Remix) support alongside Next.js
Metered billing as a first-class feature
Cheapest team plan at $599 vs $799 for Supastarter

Cons:

No background jobs or file storage included (you add these yourself or via plugins)
Plugin system adds initial learning curve
Fewer payment providers than Supastarter (3 vs 5)

Bedrock — Best for Clerk-Powered Teams

Price: $249 one-time Stack: Next.js + Clerk + PostgreSQL + Stripe

Bedrock takes a different approach to multi-tenancy: it delegates the entire auth and organization layer to Clerk. Clerk's organization primitives handle user invitations, role management, and session scoping at the auth layer — Bedrock wires those Clerk org IDs into Postgres RLS policies for database-level isolation.

What You Get for Multi-Tenancy

Clerk organization management (no custom auth to maintain)
Invitations via Clerk's built-in invite system
Roles scoped at the Clerk organization level
PostgreSQL RLS using Clerk org IDs as the tenant key
Stripe billing scoped per organization
Admin panel with user management

The advantage: Clerk handles complexity that other boilerplates implement themselves — magic links, OAuth SSO, device sessions, and SAML enterprise auth are Clerk features you can unlock without touching your boilerplate code. If your target customers include enterprises that require SAML SSO, Bedrock's Clerk dependency becomes an asset rather than a lock-in.

Best for: Teams already committed to Clerk, especially those targeting enterprise customers who may require SSO, MFA, or compliance features that Clerk provides.

Pros:

No custom auth code to maintain
Clerk handles SAML SSO, MFA, enterprise features
Clean, well-documented codebase
$249 is the best one-time price for a multi-tenant Next.js boilerplate

Cons:

Clerk dependency adds $25+/month to COGS at scale
Less payment provider flexibility (Stripe only)
Smaller community than Supastarter or Makerkit
No background jobs or file storage

Volca — Best Minimal Multi-Tenant Option

Price: $150/year subscription Stack: Node.js + React + PostgreSQL + Stripe

Volca is the cleanest, most minimal multi-tenant SaaS boilerplate available. Where Supastarter and Makerkit ship integrated platforms, Volca ships the essentials: organizations, team invites, RBAC, and Stripe subscription billing. Nothing more, nothing less.

The subscription pricing model ($150/year) is different from the one-time purchases of the competition. For solo founders doing MVP validation, paying $150/year rather than $299 upfront reduces risk. If the product fails in 6 months, you've spent less.

Best for: Bootstrapped founders who want to validate a B2B idea quickly with a clean, minimal codebase that won't slow them down with features they don't need yet.

Pros:

Cleanest, smallest codebase — easy to read and understand
Low barrier to entry at $150/year
Multi-tenancy done right without over-engineering
Good documentation and examples

Cons:

Subscription pricing means ongoing cost
Less actively updated than the top-tier options
No admin panel, no analytics, no file storage
Smaller community support

The 5 Core Multi-Tenancy Features

Every B2B SaaS needs these — verify they're included before buying:

Organization/team creation — User creates an org; becomes the owner
Member invitation — Invite by email; accept flow; proper error states for expired/invalid invites
Role-based access — At minimum: owner, admin, member; ideally customizable
Per-seat billing — Stripe subscription that scales with member count; handles upgrades and cancellations
Data isolation — Members can't see other organizations' data (verified at DB layer, not just API layer)

All four boilerplates cover all five. Free options like Nextacular (Next.js + NextAuth) cover them too, but with less polish and fewer payment options.

Adding Multi-Tenancy to a Single-Tenant Boilerplate

If your chosen boilerplate (ShipFast, T3 Stack, Next SaaS Starter) doesn't include multi-tenancy:

Effort estimate: 2–4 weeks for a senior developer
Database changes: Add organization_id FK to every tenant-scoped table, write RLS policies
Auth changes: Include organizationId in session; scope all API endpoints
UI changes: Organization switcher, member management pages, billing scoped to org

Better to start with a multi-tenant boilerplate if B2B is the plan from day one. Retrofitting multi-tenancy into a single-tenant architecture is technically feasible — it's just expensive.

Which Multi-Tenant Boilerplate Is Right for You?

If you want...	Choose
Most features pre-wired, 5 payment providers	Supastarter
Modular control, lean codebase, swap providers	Makerkit
Clerk auth with enterprise SSO potential	Bedrock
Minimal codebase, lowest cost, MVP validation	Volca
Free multi-tenancy for a B2B side project	Nextacular

All four are solid investments. The choice comes down to whether you want an integrated platform (Supastarter) or a modular foundation (Makerkit), and whether you're ready to commit to Clerk (Bedrock) or want flexibility.

Multi-tenancy is one of the clearest cases where starting with a boilerplate that has it built-in saves more time than the cost of the boilerplate itself. Building a correct multi-tenant data model — with proper row-level security, organization-scoped billing, and invitation workflows — takes experienced developers 2-4 weeks to implement correctly. Supastarter, Makerkit, and Bedrock all provide this in working, tested form on day one. The cost of any of these boilerplates is a fraction of the development time they save on multi-tenancy alone. As B2B SaaS team features have become table stakes for competitive products, the multi-tenant boilerplate market has matured — both Supastarter and Makerkit shipped significant organization model improvements in 2025 that reflect real enterprise customer requirements.

See how the top options compare: Makerkit vs Supastarter 2026 · ShipFast vs Makerkit vs Supastarter detailed comparison · multi-tenancy patterns guide.

The SaaS Boilerplate Matrix (Free PDF)