draw.io vs Software Ideas Modeler

draw.io is a free, open-source diagramming tool for creating visual layouts, from flow charts and mind maps to network, architecture, UML, BPMN and floor-plan diagrams. It supports real-time collaboration, and files can be opened and edited across platforms. Users can choose their own storage or save locally with the desktop app; draw.io says it cannot access users' data. No sign-up or credit card is required to start diagramming, and the desktop app is free forever. Diagrams can remain editable or be exported to SVG, PNG or PDF. Supported imports include draw.io, XML, Gliffy, VSDX, Lucidchart, PNG, SVG and JPEG. Integrations include Google, Microsoft, Atlassian, GitHub, VS Code, Notion and Chrome. Interactive diagrams can be embedded in documents, wikis or applications. The listed platforms are web, Windows, macOS, Linux, iOS and Android. Support is available through GitHub Discussions and Stack Overflow. The site says there is no Enterprise tier for SSO.

Software Ideas Modeler is a CASE tool for designing software and processes with diagrams. It supports more than 110 diagram types, including UML, BPMN, SysML, ERD, and flowcharts. A project keeps diagram elements in a connected model, so an element can appear in several diagrams and edits carry across them. The software can generate and parse source code, reverse engineer code into models, and create SQL creation and change scripts from ER diagrams. Editions range from basic diagrams to documentation and diagram generation, project comparison, cooperation tools, and model versioning. Ultimate lists AI support through the OpenAI API; SVN and XMI import and export are also supported. It can work offline except for downloading, obtaining a license key, and internet-dependent features such as AI tools. Setup and portable packages are available for x64, x86, and Arm64. The maker is based in Bratislava, Slovakia, and was founded in 2009. The product has a free plan for non-commercial use and a 30-day trial.