BusinessOS is a modern business management platform built for freelancers, startups, agencies, and growing businesses that need a centralized workspace to manage their daily operations.
Instead of relying on multiple disconnected tools for customer management, project tracking, invoicing, task organization, and financial monitoring, BusinessOS provides a single platform where everything can be managed efficiently.
The platform is designed with scalability, maintainability, and user experience in mind. It combines a modern Angular frontend with a secure ASP.NET Core backend to deliver a fast, reliable, and extensible business management solution.
Managing a business often involves juggling multiple systems to handle clients, projects, finances, and day-to-day operations. BusinessOS simplifies this process by bringing essential business functions together in one place.
Users can manage customers, projects, tasks, invoices, expenses, notes, and business activities from a unified dashboard. Every account operates within its own secure workspace, ensuring data privacy and isolation between users.
The project follows modern software architecture principles and serves as both a practical business solution and a reference implementation of a full-stack enterprise application.
BusinessOS provides secure user registration and authentication using JWT-based authorization. Users can create accounts, log in securely, manage their profiles, and update account settings.
Maintain a centralized customer database with contact information, notes, business details, and relationship history.
Create, organize, and monitor projects from a dedicated workspace. Projects act as a central hub for related activities and business processes.
Track work efficiently through a task management system that supports planning, prioritization, progress tracking, and completion monitoring.
Generate and manage invoices while maintaining billing records and payment information.
Record business expenses and monitor operational costs to gain better financial visibility.
Store business notes, meeting summaries, ideas, documentation, and important operational information.
Access a centralized dashboard that provides an overview of business activity, project status, financial summaries, and key metrics.
Personalize the user experience through configurable themes and appearance settings.
BusinessOS is fully responsive and optimized for desktop, tablet, and mobile devices.
- Angular
- TypeScript
- RxJS
- Angular Router
- Angular Signals
- Bootstrap / Tailwind CSS
- JWT Authentication
- ASP.NET Core Web API
- C#
- Entity Framework Core
- SQL Server
- JWT Authentication
- Dependency Injection
- Microsoft SQL Server
- Visual Studio
- Visual Studio Code
- Cursor
- Git
- GitHub
- Postman
BusinessOS follows a layered architecture to ensure separation of concerns and long-term maintainability.
The Angular frontend handles user interaction, routing, validation, state management, and API communication.
ASP.NET Core Web API exposes secure REST endpoints and acts as the bridge between the frontend and business logic.
Contains application rules, workflows, validations, and domain-specific services.
Entity Framework Core manages database operations, persistence, and data access.
This architecture promotes scalability, testability, and clean code organization.
BusinessOS
│
├── frontend/
│ ├── src/
│ ├── assets/
│ ├── environments/
│ └── app/
│
├── backend/
│ ├── Controllers/
│ ├── Services/
│ ├── Repositories/
│ ├── Entities/
│ ├── DTOs/
│ ├── Data/
│ └── Middleware/
│
├── database/
│
└── docs/
The structure may evolve as new modules and features are introduced.
Before running the project locally, ensure you have the following installed:
- .NET SDK 9.0 or later
- Node.js 22 or later
- Angular CLI
- SQL Server
- Git
git clone https://github.com/your-username/BusinessOS.git
cd BusinessOSNavigate to the backend project:
cd backendRestore dependencies:
dotnet restoreConfigure your database connection string inside appsettings.json.
Apply database migrations:
dotnet ef database updateRun the API:
dotnet runNavigate to the frontend project:
cd frontendInstall dependencies:
npm installStart the development server:
ng serveThe application will be available at:
http://localhost:4200
export const environment = {
production: false,
apiUrl: "https://localhost:5001/api"
};{
"ConnectionStrings": {
"DefaultConnection": "Server=.;Database=BusinessOS;Trusted_Connection=True;"
}
}Update these values according to your development, staging, or production environment.
Security is a core consideration throughout the platform.
BusinessOS includes:
- JWT-based authentication
- Password hashing
- Role-based authorization
- Input validation
- Secure API communication
- Protection against common web vulnerabilities
- User-level data isolation
All business data is associated with authenticated users, ensuring secure access control throughout the application.
The backend follows RESTful principles and exposes endpoints such as:
/api/auth
/api/users
/api/customers
/api/projects
/api/tasks
/api/invoices
/api/expenses
/api/notes
/api/dashboard
Standard HTTP methods are used for creating, retrieving, updating, and deleting resources.
BusinessOS is built around a set of core engineering principles:
- Clean Architecture
- Separation of Concerns
- Reusable Components
- Maintainable Code
- Consistent API Design
- Scalable System Design
- Modern Development Practices
The objective is to create a codebase that remains easy to understand, extend, and maintain as the project grows.
Planned future enhancements include:
- Team collaboration and workspace management
- Advanced analytics and reporting
- Email notifications
- Calendar integration
- File and document management
- Workflow automation
- Multi-tenant architecture
- Third-party integrations
- AI-powered business insights
- Native mobile applications
Contributions are welcome.
Whether you are fixing bugs, improving documentation, optimizing performance, or introducing new features, your contributions help improve the project.
Please follow existing coding standards and maintain consistency across the codebase when submitting pull requests.
This project is licensed under the MIT License.
For more information, see the LICENSE file.
Ali Ahsan
Full-Stack Developer focused on building scalable web applications using ASP.NET Core, Angular, SQL Server, and modern software engineering practices.
BusinessOS is an ongoing effort to create a practical, scalable, and maintainable operating system for modern businesses.