Diagram-JS vs Plotly

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

Diagram-JS

Plotly

Diagram-JS vs Plotly: The Verdict

⚡ Summary:

Diagram-JS: Diagram-JS is an open-source JavaScript diagramming library that allows you to create flowcharts, network diagrams, BPMN diagrams, ER diagrams, UML diagrams, and more. It provides a customizable canvas and diagramming components for building interactive diagrams.

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	Diagram-JS	Plotly
Sugggest Score	—	—
Category	Development	Data Visualization
Pricing	Open Source	Open Source

Product Overview

Diagram-JS

Description: Diagram-JS is an open-source JavaScript diagramming library that allows you to create flowcharts, network diagrams, BPMN diagrams, ER diagrams, UML diagrams, and more. It provides a customizable canvas and diagramming components for building interactive diagrams.

Type: software

Pricing: Open Source

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

Diagram-JS Features

Canvas component for rendering diagrams
Extensible through custom shapes and plugins
Supports BPMN, flowcharts, ER diagrams, UML diagrams
Drag and drop diagramming
Connectors, ports, docking
Undo/redo, copy/paste, delete
Keyboard shortcuts
Zooming and panning
Cross-browser support

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

Diagram-JS

Pros

Open source and free
Active community support
Customizable and extensible
Good documentation
Supports multiple diagram types
Interactive and easy to use

Cons

Steep learning curve
Limited built-in shape libraries
Not a complete diagramming solution out of the box
Requires coding skills to customize extensively

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

Diagram-JS

Open Source

Plotly

Open Source

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