SequenceDiagram Core

SequenceDiagram is tool to generate simple sequence diagram(UML) from source code.

New : A new MCP Tool generate_sequence_diagram has been released. This tool can generate sequence diagram in mermaid string format. You can use this tool though the bundled MCP server of ide.

Note : Starting from version 4.x, SequenceDiagram has been upgraded to modular structure, which consists of a core module and multiple language extension modules. The Core module remains Freemium. Language modules may be either free or paid.

The SequenceDiagram Core does not include a language module. At least one language module needs to be installed to use its features.

The language module plugin are available in the Marketplace:

• SequenceDiagram Java (free)
• SequenceDiagram JS
• SequenceDiagram Rust
• SequenceDiagram Go
• SequenceDiagram Python
• SequenceDiagram C/C++

Upgrade Guide: SequenceDiagram 3.x = SequenceDiagram Core 4.x + SequenceDiagram Java 4.x.

Edition Comparison

free

• Generate simple sequence diagram.
• Navigate the code by click the diagram shape.
• Save diagram(.sdt)
• Open diagram file(.sdt)
• Limited to 5 call deep.

freemium

• Export the diagram as image. (Paid)
• Export the diagram to PlantUML, Mermaid file format. (Paid)
• Unlock generator limits. (Paid)
• Filter Manager. (Paid)