Developer Tools
Best UML Modeling Software in 2026
UML modeling software helps you work with diagrams and models, but the listed capabilities vary across these tools. Compared on UML diagram types, code generation, and reverse engineering, they also show details about model repositories and team collaboration.
- 01 BESSER
BESSER suits developers and teams interested in low-code or AI-assisted software engineering through models and generated artifacts.
Free plan Open source Web · Windows · macOS · Linux9.0 Visit Specs - 02
Sparx Enterprise Architect It suits analysts, designers, architects, developers, testers, project managers, and maintenance staff working with modeled business or technical systems.
Free plan Web · Windows · macOS · Linux8.9 Visit Specs - 03 objectiF RPM Free trial Web · Windows · API · Self-hosted8.3 Visit Specs
- 04
Altova UModel Free trial Windows8.2 Visit Specs - 05 ArgoUML
ArgoUML suits people modeling UML 1.4 designs who need diagram exports, code generation, or Java reverse engineering.
Free plan Windows · macOS · Linux8.2 Visit Specs - 06
Eclipse Papyrus Papyrus suits engineering and modeling teams that need UML or related standards, including users seeking an open-source tool for industrial or academic work.
Free plan Web · Windows · macOS · Linux8.1 Visit Specs - 07 Horusec
Horusec suits developers and DevSecOps teams that want configurable security analysis in development or CI/CD workflows.
Free plan Web · Windows · macOS · Linux8.1 Visit Specs - 08 StarUML From $129/mo Free trial Windows · macOS · Linux · Browser extension8.1 Visit Specs
- 09
BridgePoint BridgePoint suits software and hardware application development and system design using UML and model-driven methods.
Free plan Windows · macOS · Linux8.0 Visit Specs - 10 Visual Paradigm
Visual Paradigm suits individuals and teams working across diagrams, software development, agile management, or enterprise architecture.
From $4/mo Free plan Web8.0 Visit Specs - 11 BOUML
BOUML suits people modeling systems with UML who need code generation, reverse engineering, or project collaboration.
Free plan Windows · macOS · Linux7.9 Visit Specs - 12 UMLet
UMLet suits people who want to sketch UML diagrams through text-based editing on desktop, in a browser, or within development tools.
Free plan Web · Windows · macOS · Linux7.9 Visit Specs - 13 Gaphor
Gaphor suits people documenting systems with standard modeling diagrams, and teams that need to export, script, or embed models in documentation.
Free plan Windows · macOS · Linux7.8 Visit Specs - 14 kUML
kUML suits developers and modelers who want diagramming and code-generation workflows expressed in Kotlin.
Free plan Web · Windows · macOS · Linux7.8 Visit Specs - 15 AgileUML Windows · macOS · Linux7.7 Visit Specs
- 16 JetUML
It suits people who want a focused desktop UML tool for quickly sketching software ideas on Windows, macOS, or Linux.
Free plan Windows · macOS · Linux7.6 Visit Specs - 17 Modelio
Modelio suits developers, analysts, and software or systems architects who need to model across multiple standards.
Free plan Windows · Linux · Self-hosted7.5 Visit Specs - 18 Umple Web · Windows · macOS · Linux7.3 Visit Specs
- 19 Violet UML Editor
Violet suits developers, students, teachers and authors who need simple UML diagrams.
Free plan Web · Windows · macOS · Linux7.3 Visit Specs - 20 IBM Rational Software Architect Designer Windows · macOS · Linux7.2 Visit Specs
- 21 UMLGen Free plan Web6.9 Visit Specs
- 22 Astah UML Windows · macOS · Linux6.3 Visit Specs
- 23 PragmaDev Studio Windows · macOS · Linux6.2 Visit Specs
- 24 IBM Engineering Rhapsody Web · Windows · Linux5.9 Visit Specs
- 25 UML Lab 5.9 Visit Specs
BESSER, ArgoUML, and BOUML are among the entries to explore. Deployment and supported platforms add practical points of comparison, while free-plan availability and paid-from pricing give cost context. Consider which UML diagrams you need and whether your work involves generating code or reverse engineering. Then check the listed repository, collaboration, and platform details against the way you manage and share models.
Compare BESSER and Sparx Enterprise Architect Get a place on this list
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