head to head · open source
diagram-design vs ScottPlot
diagram-design has 64,318 GitHub stars, 4,247 forks, 42 open issues and last shipped 2 days ago. ScottPlot has 6,796 stars, 1,021 forks, 242 open issues and last shipped 3 months ago. diagram-design leads on adoption by 846% (64,318 vs 6,796 stars). diagram-design is written in HTML under MIT; ScottPlot is written in C# under MIT. diagram-design has attracted 7% as many forks as stars, ScottPlot 15%. diagram-design was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (data-visualization), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| diagram-design | ScottPlot | |
|---|---|---|
| GitHub stars | ★ 64K | ★ 6.8K |
| License | MIT | MIT |
| Written in | HTML | C# |
| Last push | 2026-11-01 | 2026-08-15 |
| Forks | ⑂ 4.2K | ⑂ 1.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick diagram-design if
- You weight community size — 64K stars and counting
- You want the MIT license terms
- Your stack matches HTML
- You value the larger contributor base for long-term maintenance
pick ScottPlot if
- You want the ScottPlot feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C#
- You evaluated both and ScottPlot fits your workflow better
About diagram-design
Diagram Design Editorial diagrams your designer won't hate. New in 2.0 — the Loop: flywheels with a shared memory hub. The dashed lines are the write backs. New in 2.3: semantic system patterns and optional accessible motion, while static output stays the default. New in 2.5.10: ten more layout grammars — Sankey, fishbone, Wardley map, kanban, user journey, deployment, dependency graph, UML class, story map, and database schema. 39 editorial diagram types for Claude Code, Codex, Factory Droid, Pi, and Agent Skills compatible hosts. Self contained HTML + SVG. No shadows. No Mermaid slop. Semantic patterns…
read the full diagram-design overview →
About ScottPlot
ScottPlot ScottPlot is a free and open source plotting library for .NET that makes it easy to interactively display large datasets. The ScottPlot Cookbook demonstrates how to create line plots, bar charts, pie graphs, scatter plots, and more with just a few lines of code. The ScottPlot Demo shows how to create plots in GUI environments with advanced interactive behaviors. ScottPlot supports Windows Forms, WPF, Console, Uno Platform, Blazor, Avalonia, Eto, Notebooks, and more! Visit for documentation and additional information Contributing: Due to Scott's medical status ScottPlot is open source but not open to…
read the full ScottPlot overview →
More in Data & Analytics
Related comparisons
More Business Intelligence & Reporting projects
Compare either of these against the rest of the Business Intelligence & Reporting field.
Frequently asked questions
Is diagram-design or ScottPlot more popular?
diagram-design has 64,318 GitHub stars and ScottPlot has 6,796. diagram-design has the larger community by that measure.
Are diagram-design and ScottPlot free?
Both are open source. diagram-design is licensed under MIT and ScottPlot under MIT. Neither carries a licence fee.
What is the difference between diagram-design and ScottPlot?
diagram-design is written in HTML and ScottPlot in C#. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, diagram-design or ScottPlot?
Choose diagram-design if you want the larger community (64,318 stars) or its MIT licence terms. Choose ScottPlot if its feature set, stack or MIT licence fits better. Both are self-hostable.