Skip to content
CAI
Produce a survey ↗Verify a survey

plotly/Plotly.NET

Plotly.NET is a .NET library that generates interactive and static data visualizations by binding to the Plotly.js JavaScript library. It provides a comprehensive, type-safe API for constructing diverse chart types—including 2D, 3D, and domain-specific plots—using a modular object model for layout, trace, and configuration. The system supports multiple output formats, including interactive HTML, static images, and notebook-rendered graphics, while offering fluent styling and global default management for consistent chart appearance.

60.1

Adequate · 1 August 2026

7.8k

lines of production code

F#

with C#

1

bus factor · 39 authors in all

3

measurements over time

CAI band scale
CAI trend line

How it got here

2016–2021 · Modernization and API expansion

This period focused on modernizing the project's build infrastructure and migrating to .NET 10, while significantly expanding the public API with strongly-typed object abstractions for traces, layouts, and configuration. The library introduced new features including headless image export, notebook integration, and global chart defaults, alongside a comprehensive refactoring of the Chart API for improved type safety and discoverability.

22 changes

2022–2025 · C# API expansion and test coverage

This period focused on significantly expanding the C# API for chart styling and creation, introducing fluent extension methods and supporting types to make the library more idiomatic for C# developers. Concurrently, the team implemented a modular build system and added extensive test coverage for C# bindings, HTML code generation, and various chart types.

21 changes

CAI lens gauges

Survey your own repository

plotly/Plotly.NET was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point the surveyor at a repository you know and see whether you agree with it.

Survey a repository

About this page

  • The description of this project is derived from its own commit history, not from its README.
  • The score is its highest published measurement, taken on 1 August 2026 at a pinned commit. It is not a live figure and does not change until the project is measured again.
  • Measured at commit bca20de484 — the exact code this score is about.
  • Scored under rubric rubric-2026.08.18. Score the same commit under that rubric and you get the same number.
CAI link cards