The hardest part of building a portfolio isn't the code — it's picking something worth building. Most "beginner project" lists hand you a to-do app and a calculator, and neither one tells an employer anything about whether you can model data, handle a real workflow, or ship something people actually use.
So I put together 100 ideas that all share one thing: they're apps a real business would pay someone to build. Inventory trackers, order dashboards, help desk queues, marketplace tools. Boring on purpose — because boring business software is what most junior .NET jobs are.
How to use this list
- Pick three, not thirty. A portfolio with three finished apps beats one with twelve abandoned repos.
- Pick from different categories. One business/CRUD app, one ecommerce or operations tool, one cloud or AI stretch project shows range.
- Build the boring parts well. Validation, search, filtering, and error handling are what get looked at in a code review.
- Ship it somewhere public. A live URL and a README with screenshots does more than a repo nobody can run.
The stack I'd use
Every idea below works with the same modern .NET setup: Blazor Server or ASP.NET Core for the frontend, C# services for the logic, SQL Server for storage, and SmarterASP or Azure for hosting. Once that's working, GitHub Actions, Docker, and a small AI helper feature make good stretch goals. Each idea's page has a build outline written for that specific app.
Browse all 100 ideas
Search by keyword or filter by category, then open any idea for its build outline.