Free Blazor Charts — Build Data Visualizations Without Paying a Dime

If you have ever priced out a Blazor chart library, you know the pain. Telerik starts at $1,249/developer/year. Syncfusion is $995+. For a team of five, you are looking at $5,000 to $6,000 per year just to render a bar chart.

There is a better way. In this post, we will walk through every free Blazor chart option available in 2026 — and show you how to ship production-quality data visualizations without spending a dime.

What You Get for Free with Arcadia Controls Community Edition

The Arcadia Controls Community Edition is a fully free, MIT-licensed Blazor chart library available on NuGet. No trial periods. No watermarks. No revenue caps. Here is what is included:

4 chart types:

• Line Chart — time series, trends, multi-series with area fill
• Bar Chart — vertical, horizontal, grouped, and stacked
• Pie Chart — standard pie with label positioning and custom colors
• Scatter Chart — point clouds with size mapping and tooltips

7 dashboard widgets:

• KPI Card
• Gauge (radial and linear)
• Sparkline
• Progress Ring
• Stat Tile
• Mini Chart
• Notification Badge

Technical highlights:

• Pure SVG rendering from C# — zero JavaScript dependencies
• WCAG 2.1 AA accessible — hidden data tables, keyboard navigation, ARIA labels
• Multi-target: .NET 5 through .NET 10 — works with every supported Blazor version
• All render modes — Server, WebAssembly, Auto, and SSR
• MIT license — use it in commercial projects, no attribution required on the UI

The NuGet package name is Arcadia.Charts. Install it and start building.

Quick Start — Your First Free Blazor Chart in 60 Seconds

Step 1: Install the package

dotnet add package Arcadia.Charts

Step 2: Add the CSS to your App.razor or _Host.cshtml

<link rel="stylesheet" href="_content/Arcadia.Charts/arcadia-charts.css" />

Step 3: Add a line chart to any page

@page "/dashboard"
@using Arcadia.Charts

<ArcadiaLineChart Width="600"
                  Height="350"
                  XAxisTitle="Month"
                  YAxisTitle="Revenue ($k)">
    <ChartSeries Name="2025"
                 Data="@(new[] { 12.5, 18.3, 15.7, 22.1, 28.9, 31.4 })"
                 Color="#8b5cf6" />
    <ChartSeries Name="2026"
                 Data="@(new[] { 15.1, 21.7, 19.3, 26.8, 33.2, 38.5 })"
                 Color="#ec4899" />
</ArcadiaLineChart>

That is it. No JavaScript imports. No canvas setup. No interop configuration. The chart renders as clean SVG directly from C# components. It works in Blazor Server, WebAssembly, and Auto mode without any changes.

Adding interactivity

Want tooltips? Add one parameter:

<ArcadiaLineChart Width="600"
                  Height="350"
                  ShowTooltips="true"
                  ShowCrosshair="true"
                  XAxisTitle="Month"
                  YAxisTitle="Revenue ($k)">
    <ChartSeries Name="2025"
                 Data="@(new[] { 12.5, 18.3, 15.7, 22.1, 28.9, 31.4 })"
                 Color="#8b5cf6" />
</ArcadiaLineChart>

Need click events? Use the standard Blazor callback pattern:

<ArcadiaBarChart OnClick="HandleBarClick" ... />

@code {
    private void HandleBarClick(ChartClickEventArgs args)
    {
        selectedCategory = args.Label;
        selectedValue = args.Value;
    }
}

What About Other Free Blazor Chart Options?

Arcadia is not the only free option. Here is a honest comparison of every free Blazor chart library in 2026:

MudBlazor Charts

Price: Free (MIT)

MudBlazor includes 6 basic chart types as part of its component suite. The charts work but they are limited — no multi-series support on some chart types, no dashboard widgets, and no accessibility features like hidden data tables. The charts rely on JavaScript interop for rendering.

Best for: Projects already using MudBlazor where you need a simple pie or bar chart and nothing more.

Radzen Charts

Price: Freemium (free tier with limitations)

Radzen offers charts in their free component library, but the free version has limitations on customization and the more advanced chart types require a paid license. Charts use JS interop under the hood.

Best for: Teams already invested in the Radzen ecosystem.

ChartJs.Blazor

Price: Free (MIT)

This is a Blazor wrapper around Chart.js. It was popular in 2021-2022 but the repository has not seen meaningful updates since 2023. It still targets .NET 6 and does not support .NET 8+ render modes (Auto/SSR). Since it wraps Chart.js, you are pulling in a full JavaScript charting library.

Best for: Legacy .NET 6 projects where you absolutely need Chart.js compatibility.

Why we built Arcadia differently

Most “free Blazor charts” are wrappers around JavaScript chart engines. Data flows from C# to JS via interop, gets rendered in a canvas or JS-generated SVG, and events flow back through interop. This architecture adds latency, bundle size, and complexity.

Arcadia Charts renders pure SVG from C# Blazor components. The chart elements are part of the Blazor component tree. They participate in normal Blazor diffing and lifecycle. There is no JavaScript runtime involved in rendering.

When to Upgrade to Arcadia Pro

The free Community Edition covers most dashboard use cases. But if you need advanced visualizations, the Pro plan at $299/developer/year unlocks:

• Area Chart with gradient fills and stacking
• Donut Chart with center labels
• Radar Chart for multi-axis comparisons
• Treemap for hierarchical data
• Heatmap for density visualization
• Funnel Chart for conversion pipelines
• Rose / Polar Area Chart for directional data
• Candlestick Chart for financial data

Plus Pro features on all chart types:

• Annotations and reference lines
• Data zoom and pan
• Export to PNG/SVG
• Real-time streaming data support
• Custom tooltip templates

How does $299 compare?

You save $700 to $950 per developer compared to Telerik and Syncfusion — and you still get the zero-JS architecture, full accessibility, and .NET 5-10 support.

Get Started Today

The Arcadia Controls Community Edition is free forever. No sign-up. No license keys for the free tier. Just install and build.

dotnet add package Arcadia.Charts

Useful links:

• Documentation — full API reference and guides
• Chart Playground — interactive chart builder
• GitHub — source code, issues, discussions
• NuGet — package page
• Chart Library Comparison — detailed feature comparison

Whether you are building an internal admin panel, a SaaS dashboard, or a customer-facing analytics page, free Blazor charts are production-ready in 2026. You do not need to pay $1,000+ per developer to render data visualizations in your Blazor app.