Software architecture
Describe structure and behavior with UML, layer diagrams, flowcharts, and data flow diagrams. Use documentation and glossaries to communicate the design.
Software Ideas Modeler
Model complex software with clarity.
Design software architecture, map business processes, and document systems in one professional CASE tool.
Version 15.55 Released August 13, 2026
- 110+ diagram typesUML, BPMN, SysML, ERD, and more
- Connected modelsReuse model elements across diagrams
- From models to codeGenerate code and visualize existing code
Capabilities
From requirements to implementation
Explore how the same workspace supports design, analysis, and documentation across a project.
Source code engineering
Turn existing code into diagrams. Use the source code generators and custom templates to generate code from your model.
Requirements capture
Record what your system needs to do with use case analysis, user stories, and requirement diagrams.
Wireframing and UX design
Sketch application interfaces, web pages, and mobile apps. Show how people move through them with screen flows.
Database design
Describe entities and relationships with ER diagrams. Generate SQL creation and change scripts with the ERD tool.
Business process modeling
Map how work gets done with BPMN and CMMN. Document repeatable decisions with DMN diagrams.
System analysis
Model systems with SysML and analyze failure modes with FTA, ETA, and FMEA.
Enterprise architecture
Describe and visualize enterprise architecture using ArchiMate elements, layers, and color conventions.
Visual communication
Create infographics, roadmaps, and tutorials with configurable shapes.
Modeling toolkit
Choose the right diagram for the job
Modeling tools
Diagram guides
The workspace
Keep your diagrams consistent as projects grow
Organize complex diagrams
Use layers, groups, snap lines, and automatic layouts to make diagrams easier to read.
Reuse model elements
Place one element in multiple diagrams. Changes to the element carry across every view where it appears.
Share a visual style
Use built-in styles or create reusable style sets in the diagram editor.
Independent reviews
What reviewers say
Softpedia
Editor’s rating of 5 out of 5. The review highlights the intuitive workspace and the availability of a portable edition.
Read the Softpedia reviewFindMySoft
Editor’s rating of 5 out of 5. The review highlights the variety of diagrams and support for multiple languages.
Read the FindMySoft reviewBetaNews
A review of Software Ideas Modeler’s diagramming tools, including flowcharts and mind maps.
Read the BetaNews reviewNews
Major Performance Improvements for Large Diagrams – Software Ideas Modeler 15.55
Software Ideas Modeler 15.55 brings major performance improvements for working with large and complex diagrams. Rendering, navigation, element movement, and snapping have all been optimized, making diagrams with thousands of elements significantly more responsive. This release also introduces adaptive rendering quality, improves Mind Map auto-layout, adds single-diagram XMI export, and includes several fixes for C++ reverse engineering and Mind Maps.
Software Ideas Modeler 15.51 – UML State Machine Project Loading Fix
Software Ideas Modeler 15.51 is a hotfix release that resolves an issue affecting the loading of projects containing UML State Machine diagrams. Updating is recommended for users working with these diagrams.
Software Ideas Modeler 15.50 – Model Health, Diagram Readability, and Enhanced Mind Maps
Software Ideas Modeler 15.50 introduces two major analysis-focused features: Diagram Readability and Model Health. These new tools help you detect layout, clarity, documentation, naming, and relationship issues directly inside your project. This release also adds new mind map node types, improves status bar feedback, and introduces new toolbox ordering options for a smoother modeling workflow.
Software Ideas Modeler 15.40 – Smarter Text-Based Diagram Generation and Refined User Experience
Software Ideas Modeler 15.40 expands text-based modeling capabilities with enhanced support for automatic diagram generation, introduces Mermaid syntax support, and delivers a more polished and streamlined user experience. This release also improves layouts, connector routing, and several key areas of the user interface to make everyday modeling faster and more intuitive.
Stability Improvements and Modeling Accuracy Enhancements - Software Ideas Modeler 15.31
Software Ideas Modeler 15.31 is a maintenance-focused release that improves modeling reliability, refines visual rendering, and resolves several issues affecting everyday workflows. This version ensures more consistent behavior across diagrams and strengthens the accuracy of generated outputs.
Software Ideas Modeler 15.30 – Smarter Layouts, Better UI, and Enhanced Documentation
Software Ideas Modeler 15.30 focuses on improving diagram creation efficiency, refining the user interface, and expanding capabilities for interactive documentation. This release brings more intelligent layout behavior, enhanced visual consistency, and powerful new options for structuring and presenting your models.
Software Ideas Modeler 15.25 – Faster Navigation and Smarter Diagram Creation
Software Ideas Modeler 15.25 continues refining everyday diagram work with faster keyboard navigation, smarter element placement, and extended modeling flexibility. This release also delivers important stability improvements following the recent platform migration, ensuring a smoother experience across complex projects.