The most sophisticated free UI component library for Blazor, featuring 100+ native components. MIT licensed, used by thousands of developers at companies like Microsoft, NASA, Porsche, Dell, Siemens, and DHL.
Supports .NET 10, Blazor Server, Blazor WebAssembly, and .NET MAUI Blazor Hybrid.
Online Demos · Documentation · Get Started
Install the NuGet package:
dotnet add package Radzen.BlazorAdd to _Imports.razor:
@using Radzen
@using Radzen.BlazorAdd the theme and script to App.razor:
<!-- inside <head> -->
<RadzenTheme Theme="material" />
<!-- after the last <script> -->
<script src="_content/Radzen.Blazor/Radzen.Blazor.js"></script>Register services in Program.cs:
builder.Services.AddRadzenComponents();Use a component:
<RadzenButton Text="Hello World" Click="@OnClick" />For the full setup guide including render modes and dialog/notification configuration, see the getting started instructions.
Data — DataGrid, DataList, PivotDataGrid, Pager, Tree, Scheduler, Charts, GaugeCharts
Forms — TextBox, TextArea, Password, Numeric, DatePicker, TimePicker, ColorPicker, Dropdown, AutoComplete, ListBox, CheckBox, RadioButtonList, Switch, Slider, Rating, FileInput, HtmlEditor
Layout — Card, Panel, Tabs, Accordion, Splitter, Steps, Dialog, Fieldset
Navigation — Menu, ContextMenu, PanelMenu, Breadcrumb, Link, TreeView
Feedback — Notification, Alert, ProgressBar, Badge, Tooltip, Skeleton
Theming — 10 built-in themes with light and dark variants. Free themes: Material, Standard, Default, Humanistic, Software. Premium themes (included with Radzen Blazor Pro): Material 3, Fluent. Full CSS variable customization and a built-in theme service for runtime switching.
Browse all components with live demos →
MIT licensed and free for commercial use. No per-developer fees, no runtime royalties. Install from NuGet or build from source.
Written entirely in C#. No JavaScript framework dependencies, no wrappers.
Frequent releases with new components and features. Short development cycle — we ship as soon as new features are ready instead of batching into quarterly releases.
Used by developers at Microsoft, NASA, Porsche, Dell, Siemens, Nokia, DHL, HSBC, Allianz, Accenture, Deloitte, and thousands of other organizations worldwide.
Visit the Radzen Community forum — 400+ active weekly users with an average response time of 2 hours.
For dedicated support and additional productivity tools, the Radzen Blazor Pro subscription includes:
- Radzen Blazor Studio — standalone Blazor IDE that provides WYSIWYG design canvas, database scaffolding, CRUD wizards, app templates, and deployment to IIS/Azure
- Radzen Blazor for Visual Studio — Blazor tooling integrated into Visual Studio 2026
- Premium themes and theme customization tools
- Dedicated support with guaranteed 24-hour response time and priority fixes
Use Radzen.Server.sln to open and run demos as Blazor server application or Radzen.WebAssembly.sln to open and run demos as Blazor WebAssembly application. The demos require the .NET 10 SDK and should preferably be opened in VS2026.