fullstackhero/dotnet-starter-kit

What is it?

Key features

• 01Multitenant isolation with tenant resolution and per-tenant migrations
• 02JWT and ASP.NET Identity authentication with roles and permissions
• 03Local full-stack orchestration via .NET Aspire with one command
• 04Two React 19 apps with TanStack Query and SignalR/SSE real-time updates
• 05Docker Compose and Terraform (AWS) deployment configurations
• 06OpenAPI documentation with the Scalar UI and OpenTelemetry observability

Use cases

• Starting a multi-tenant SaaS product on .NET without building auth and tenancy from scratch
• Learning a clean vertical-slice and modular monolith structure in .NET
• Building an internal admin console and tenant app pair with a .NET API

Quick start

1. 1

   Install the fsh CLI from NuGet

   dotnet tool install -g FullStackHero.CLI
2. 2

   Create a new project with the fsh wizard

   fsh new MyApp
3. 3

   Enter the project folder

   cd MyApp
4. 4

   Run the whole stack via the Aspire AppHost

   dotnet run --project src/Host/MyApp.AppHost

Things to know

• !Requires Docker for the local Postgres, Valkey and RustFS services, plus the .NET 10 SDK and Node 20+ for the React apps.
• !The backend is a modular monolith on .NET 10 with PostgreSQL, so it is not a fit for teams wanting other stacks.

Topics

FAQ

What is dotnet-starter-kit?

A production-ready .NET 10 modular monolith and React 19 starter kit for building multi-tenant SaaS apps with identity, billing and more pre-wired. FullStackHero is a .NET 10 starter kit that provides a modular monolith backend built with vertical slices, plus two React 19 front-end apps: an operator admin console and a tenant dashboard. It covers multitenancy via Finbuckle, JWT and ASP.NET Identity authentication, billing, auditing, webhooks, file storage, chat, real-time updates, caching on Valkey, Hangfire background jobs, OpenAPI with the Scalar UI, and OpenTelemetry observability. All source is included in the project rather than hidden in packages.

Is dotnet-starter-kit free to use? What license does it have?

dotnet-starter-kit is open source under the MIT license. Check the license terms before using it in commercial products.

Is dotnet-starter-kit still maintained?

Actively maintained. The last commit to dotnet-starter-kit was on Oct 9, 2026.

What can I use dotnet-starter-kit for?

Starting a multi-tenant SaaS product on .NET without building auth and tenancy from scratch Learning a clean vertical-slice and modular monolith structure in .NET Building an internal admin console and tenant app pair with a .NET API

How do I install dotnet-starter-kit?

Install the fsh CLI from NuGet: dotnet tool install -g FullStackHero.CLI Create a new project with the fsh wizard: fsh new MyApp Enter the project folder: cd MyApp Run the whole stack via the Aspire AppHost: dotnet run --project src/Host/MyApp.AppHost

Where can I get dotnet-starter-kit?

The source code and installation instructions are on GitHub: https://github.com/fullstackhero/dotnet-starter-kit