FullStackHero v10 Released | .NET 10 WebAPI & React Frontends
Published on June 20, 2026 by Mukesh Murugan
I rebuilt FullStackHero from the ground up on .NET 10. v10 is live, and it's completely free.
This is not a version bump. The old kit was two repos and .NET 6. v10 is a single modular monolith with two React apps, and it's the version I always wanted to ship.
Here's the part that should make you sit up.
You clone it, run one command, and a full multi-tenant SaaS comes up on your machine.
Authentication. Billing with PDF invoices. Real-time chat over SignalR. File storage. Two React 19 apps. Interactive API docs. All wired together and seeded with demo data.
No setup ritual. No config scavenger hunt. One command via .NET Aspire and the whole stack is green.
What you actually get:
Ten production modules, not stubs. Identity, multitenancy, auditing, webhooks, files, notifications, billing, catalog, chat, tickets. The unglamorous 80% every serious app needs before it does anything interesting.
A modular monolith with Vertical Slice per module, and the boundaries are enforced by architecture tests. Break a boundary and the suite goes red.
1,600+ backend tests and 200+ end-to-end tests across both React apps. It went through a module-by-module security audit before the stable release.
And it's copy-and-own. The entire source lands in your repo. No black-box NuGet runtime sitting between you and the code. Don't like how multitenancy resolves? Open the file and change it.
One more thing I'm genuinely proud of: it ships agent-ready. There's an AGENTS file and an agents folder full of rules and recipes, so Claude Code, Cursor, Gemini, or Codex already know the architecture before they write a line. The agent gives you speed. The kit gives it senior-engineer judgment to aim at.
FullStackHero has sat around 6,400 stars for years. v10 is the best version by a wide margin, and MIT licensed.
The fastest way to feel it is to run it. Give it five minutes and watch a whole SaaS boot on your laptop.
Full write-up (the architecture, the stack, the full tour): https://codewithmukesh.com/blog/introducing-fullstackhero/
Source on GitHub: https://github.com/fullstackhero/dotnet-starter-kit
If it saves you a sprint of plumbing, a star on the repo genuinely helps keep it alive.
This is not a version bump. The old kit was two repos and .NET 6. v10 is a single modular monolith with two React apps, and it's the version I always wanted to ship.
Here's the part that should make you sit up.
You clone it, run one command, and a full multi-tenant SaaS comes up on your machine.
Authentication. Billing with PDF invoices. Real-time chat over SignalR. File storage. Two React 19 apps. Interactive API docs. All wired together and seeded with demo data.
No setup ritual. No config scavenger hunt. One command via .NET Aspire and the whole stack is green.
What you actually get:
Ten production modules, not stubs. Identity, multitenancy, auditing, webhooks, files, notifications, billing, catalog, chat, tickets. The unglamorous 80% every serious app needs before it does anything interesting.
A modular monolith with Vertical Slice per module, and the boundaries are enforced by architecture tests. Break a boundary and the suite goes red.
1,600+ backend tests and 200+ end-to-end tests across both React apps. It went through a module-by-module security audit before the stable release.
And it's copy-and-own. The entire source lands in your repo. No black-box NuGet runtime sitting between you and the code. Don't like how multitenancy resolves? Open the file and change it.
One more thing I'm genuinely proud of: it ships agent-ready. There's an AGENTS file and an agents folder full of rules and recipes, so Claude Code, Cursor, Gemini, or Codex already know the architecture before they write a line. The agent gives you speed. The kit gives it senior-engineer judgment to aim at.
FullStackHero has sat around 6,400 stars for years. v10 is the best version by a wide margin, and MIT licensed.
The fastest way to feel it is to run it. Give it five minutes and watch a whole SaaS boot on your laptop.
Full write-up (the architecture, the stack, the full tour): https://codewithmukesh.com/blog/introducing-fullstackhero/
Source on GitHub: https://github.com/fullstackhero/dotnet-starter-kit
If it saves you a sprint of plumbing, a star on the repo genuinely helps keep it alive.