Angular vs. React vs Blazor: A Detail Comparison 2026
Estimated study time: 12 minutes.
Blazor has grown into a serious contender for teams already invested in the .NET ecosystem, adding a genuinely different option to the Angular vs React conversation: building web UIs with C# instead of JavaScript.
What is Blazor?
Blazor is Microsoft's framework for building interactive web UIs using C# and .NET instead of JavaScript. It runs either in the browser via WebAssembly (Blazor WebAssembly) or on the server with real-time UI updates over SignalR (Blazor Server).
Side-by-Side Comparison
| Aspect | Angular | React | Blazor |
|---|---|---|---|
| Language | TypeScript | JavaScript/TypeScript | C# |
| Type | Full framework | UI library | Full framework |
| Rendering | Browser DOM | Browser DOM (virtual DOM) | WebAssembly or Server (SignalR) |
| Ecosystem | Large, JS-based | Largest, JS-based | Growing, .NET-based |
| Best fit | Enterprise JS/TS teams | Flexible, general-purpose projects | Teams already using .NET/C# |
Performance
Angular and React both perform well for typical business applications. Blazor WebAssembly ships a larger initial payload (the .NET runtime itself) which can slow first load, though subsequent interactions are fast. Blazor Server has near-instant load times but depends on a persistent connection to the server, which affects latency and offline behavior.
When to Choose Each
- Angular — enterprise teams that want an opinionated, TypeScript-first framework with everything built in.
- React — teams that want flexibility, the largest talent pool, and a huge library ecosystem.
- Blazor — organizations already standardized on C#/.NET who want to avoid maintaining a separate JavaScript stack.