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OpenSilver vs Plotly

Professional comparison and analysis to help you choose the right software solution for your needs.

OpenSilver icon
OpenSilver
Plotly icon
Plotly

OpenSilver vs Plotly: The Verdict

⚡ Summary:

OpenSilver: OpenSilver is an open-source implementation of Silverlight, providing similar functionality for building rich internet applications using C# and XAML. As an open-source alternative, it allows developers to avoid being locked into Microsoft's ecosystem.

Plotly: Plotly is an open-source graphing library for Python, R, JavaScript, and Excel. It allows users to create interactive, publication-quality graphs, charts, and dashboards that can be embedded in websites and apps. Plotly is useful for data analysis and visualization.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature OpenSilver Plotly
Sugggest Score — —
Category Development Data Visualization
Pricing Open Source Open Source

Product Overview

OpenSilver
OpenSilver

Description: OpenSilver is an open-source implementation of Silverlight, providing similar functionality for building rich internet applications using C# and XAML. As an open-source alternative, it allows developers to avoid being locked into Microsoft's ecosystem.

Type: software

Pricing: Open Source

Plotly
Plotly

Description: Plotly is an open-source graphing library for Python, R, JavaScript, and Excel. It allows users to create interactive, publication-quality graphs, charts, and dashboards that can be embedded in websites and apps. Plotly is useful for data analysis and visualization.

Type: software

Pricing: Open Source

Key Features Comparison

OpenSilver
OpenSilver Features
  • XAML-based UI framework
  • C# and .NET support
  • MVVM architecture
  • 2D vector graphics
  • Media playback
  • Out-of-browser apps
  • Cross-platform deployment
Plotly
Plotly Features
  • Interactive data visualization
  • Support for Python, R, JavaScript, Excel
  • 2D and 3D plotting
  • Statistical charts
  • Dashboards
  • Collaboration tools
  • Exporting and sharing

Pros & Cons Analysis

OpenSilver
OpenSilver

Pros

  • Open source and free
  • Avoids vendor lock-in
  • Active community support
  • Familiar to Silverlight developers

Cons

  • Limited adoption
  • Less features than Silverlight
  • No designer tooling
  • Lacks some advanced capabilities
Plotly
Plotly

Pros

  • User-friendly
  • High-quality visualizations
  • Cross-platform compatibility
  • Open source and free
  • Large gallery of examples
  • Active community support

Cons

  • Steep learning curve
  • Limited customization compared to matplotlib
  • Online dependency for full functionality
  • Freemium pricing model limits features

Pricing Comparison

OpenSilver
OpenSilver
  • Open Source
Plotly
Plotly
  • Open Source

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Learn More About Each Product

OpenSilver
OpenSilver
Reviews, pricing & alternatives →
Plotly
Plotly
Reviews, pricing & alternatives →

Ready to Make Your Decision?

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