The Remix Supabase SaaS boilerplate, continued on React Router 8
Remix v2 merged into React Router, and this kit moved with it. Imports change from @remix-run/* to react-router.Routes are declared in routes.ts, with loader and action types generated per route.
Authentication
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Maintained Full-Time
Since 2022
Rules and an MCP server for AI agents and IDEs: Claude Code, Codex, Gemini, and Cursor
Instruction files tell the agent where code goes and which patterns to reuse. The MCP server gives it structured access to the kit, so features land on the existing auth, tenancy, and billing instead of beside them.
A production-ready Remix SaaS Boilerplate on React Router 8The setup, stack, and tooling are decided, so your first commit is a product feature.
Authentication with Supabase AuthPassword, magic link, OAuth, and MFA through Supabase Auth, with sessions available to every server request.
Multi-Tenancy with Row Level SecurityTeam accounts, invitations, and roles, with Postgres RLS policies scoping every query to the accounts a user belongs to.
BillingStripe or Lemon Squeezy subscriptions, including per-seat and metered billing, for personal and team accounts.
Admin PanelManage your users, organizations, and build your own internal tooling within the app.
Delightful UI, Built to ExtendScreens for every flow, built from the same Shadcn UI components you will use for your own features.
MarketingGet found by your target audience with blog, documentation, changelog, and more.
Monitoring and TestingComprehensive monitoring and testing tools to help you keep your SaaS running smoothly.
Support and CommunityAsk me and the MakerKit community on Discord about setup, kit-related issues, and how the codebase fits together.
Get the Remix successor kit on React Router 8 and Supabase
Included in the Supabase stack license with the Next.js and TanStack Start kits. One-time purchase: lifetime license, continuous updates, unlimited projects of your own.
- Lifetime access to your stack of choice
- Build unlimited applications
- Continuous updates
- Access to the Discord community
- The best support in the SaaS Starter kits market, period.
- Community and Chat support
- Community-based feature requests and Request for Comments. You have a say in what Makerkit should build next.
- One-time payment, no subscriptions
- Includes access to our free Figma UI kit
Pro A B2B SaaS Starter Kit for individual developers.
| Teams A B2B SaaS Starter Kit for teams of developers or companies.
|
Questions about licensing?
Read the MakerKit license terms and the MakerKit FAQ, or contact me.
The Remix Supabase SaaS boilerplate, one framework version later
Remix ideas, React Router 8 packages, Supabase underneath. Loaders and actions carry over; the package names change.
What is the MakerKit Remix SaaS boilerplate?
The MakerKit Remix SaaS boilerplate is now the MakerKit React Router SaaS Starter Kit: a React Router 8 and Supabase monorepo with authentication, team accounts, roles, invitations, subscription billing, and a super admin. Code written for Remix v2 migrates by changing imports and moving routes into routes.ts.
Best for
- Developers who know Remix and want to keep loaders and actions
- Teams with a Remix-era MakerKit app planning the move to React Router
- Products happy to use Supabase for auth, database, and storage
Not for
- Projects that must stay on the Remix v2 packages
- Teams that want Drizzle or Prisma on their own Postgres; the React Router kit is Supabase only
- Anyone who wants React Server Components
The Remix model, kept
Loaders, actions, nested layouts, and error boundaries work the way they did in Remix v2.
Typed route modules
Loader and action arguments use generated Route types instead of hand-written generics.
Migration guide
The docs walk through imports, removing json(), typed loaders, and moving routes into routes.ts.
Supabase with RLS
Team data is scoped by Row Level Security policies, the same model the Remix kit used.
Built for AI coding agents
AGENTS.md and CLAUDE.md files at the root and in each package, rules for Claude Code, Cursor, Codex, and Gemini, and an MCP server your agent can call.
Lifetime license, continuous updates
Pay once, then pull new features, fixes, and framework upgrades into your repository with git. Maintained full-time since 2022.
With and without MakerKit
Remix SaaS Boilerplate FAQ
Is there still a Remix SaaS boilerplate?
Yes, under a new name. Remix v2 merged into React Router, and the MakerKit Remix Supabase kit became the React Router SaaS Starter Kit, now on React Router 8 and Supabase. Loaders, actions, nested routes, and error boundaries work the way they did in Remix.
What changes for code written for Remix?
Mostly imports and route registration. Imports from @remix-run/react and @remix-run/node collapse into react-router, json() responses become plain returned objects, loader arguments use the generated Route.LoaderArgs type, and routes are declared in a routes.ts file instead of inferred from file names. The kit docs have a step-by-step migration guide.
Does the kit keep the architecture of the Remix version?
Yes. It keeps the Turborepo layout with @kit/ui, @kit/billing, @kit/team-accounts, and @kit/supabase packages, Supabase Auth with Row Level Security for team data, and the billing gateway that switches between Stripe and Lemon Squeezy through configuration.
Should I pick this kit or the Next.js kit?
Pick this one if your team thinks in Remix terms: loaders and actions carry over, and there is no Server Components model to learn. Pick the Next.js Supabase kit if you want React Server Components, or if you may move to Drizzle or Prisma later, since the React Router kit is Supabase only.
Which license includes the React Router kit?
The Supabase stack license. It includes the React Router 8 kit together with the Next.js 16 and TanStack Start Supabase kits, as a one-time purchase with continuous updates.
Is MakerKit a one-time purchase or a subscription?
A one-time purchase. You get a lifetime license to the source code, continuous updates for the stack you bought, and unlimited projects for your own business, with no renewal fee. Building products for clients requires a Team license, and each client that receives the code needs their own license.
What support is included?
Discord support from me, Giancarlo, the founder who works on MakerKit full-time, and from the community. I help with setup, kit-related issues, and questions about the codebase. Team licenses add a private Discord channel for your team.
SaaS products built with MakerKit
A selection of products MakerKit customers have built on the kits.
I help founders launch faster - because life’s too short to write boilerplate code.
I am a software engineer with almost 15 years of experience writing code for both startups and enterprises.
My love for creating digital products inspired me to build Makerkit, a SaaS Starter Kit that helps you launch the SaaS you have always dreamed of.
My job is to help you achieve your goals, and I work hard to make it happen.
You can find me on Twitter, LinkedIn, and GitHub.
Still thinking in loaders and actions? This is your kit.
Keep the Remix model, move to React Router 8, and skip rebuilding auth, teams, and billing. The migration guide covers your own routes, and updates keep coming after you buy.