Both .NET Framework and .NET Core are platforms developed by Microsoft for building applications, but they differ in architecture, usage, and flexibility.
Platform Support
- .NET Framework → Windows-only
- .NET Core → Cross-platform (Windows, Linux, macOS)
Open Source
- .NET Framework → Mostly closed source
- .NET Core → Fully open source and community-driven
Performance
- .NET Framework → Slower compared to modern standards
- .NET Core → Faster and optimized for high performance
Application Types
- .NET Framework → Best for desktop apps (WinForms, WPF) and legacy systems
- .NET Core → Ideal for web apps, APIs, microservices, and cloud apps
Deployment
- .NET Framework → Requires system-wide installation
- .NET Core → Supports self-contained deployment (app carries its own runtime)
Microservices & Cloud
- .NET Framework → Not suitable for microservices
- .NET Core → Designed for microservices and cloud-native apps
Updates & Future
- .NET Framework → Maintenance mode (no major new features)
- .NET Core → Actively developed (now evolved into modern .NET versions like .NET 5+)