Best UML Modeling Software in 2026
21 uml modeling software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
21ranked
14free plans on this page
$4/molowest paid tier
1 Oct 2026last checked
#1 Visual Paradigm Top pick · 8.7 Free plan · $4/mo #2 Sparx Enterprise Architect Runner-up · 8.3 Free plan · Free
#3 BOUML Also great · 8.3 Free plan · Free- Free plan Web
- Free plan
- Yes
- Paid from
- 4 /user/mo
RecognisedDocumentedFree planFree trialPlatforms$4/mofirst paid tier About Visual ParadigmVisit site - Free planRecognisedDocumentedFree planFree trialPlatforms
- Free plan LinuxmacOSWindows
- Free plan
- Yes
- UML diagram types
- use case, sequence, communication, class, composite class, activity, state, object, composite object, component, deployment
- Code generation
- Yes
- Reverse engineering
- Yes
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan LinuxmacOSWindows
- Free plan
- Yes
- UML diagram types
- Class, component, state machine, interaction, activity, use case, sequence, communication/collaboration
- Code generation
- Yes
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- UML diagram types
- class, object, state machine
- Code generation
- Yes
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan LinuxmacOSWindows
- Free plan
- Yes
- UML diagram types
- Class, Component, Action, Sequence, Interaction, State Machine, Use Case, Deployment, Information Flow
- Code generation
- Yes
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan LinuxmacOSWindows
- Free plan
- Yes
- UML diagram types
- class, statechart, activity, use case, collaboration, deployment, sequence
- Code generation
- Yes
- Reverse engineering
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan WebWindowsmacOSLinux
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Windows
- Free plan
- No
- UML diagram types
- Class, activity, component, communication, composite structure, deployment, interaction overview, object, package, profile, sequence, state machine, timing, use case
- Code generation
- Yes
- Reverse engineering
- Yes
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan WebWindowsmacOSLinux
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan WindowsLinux
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan WindowsmacOSLinux
- Free plan
- Yes
- UML diagram types
- class, sequence, state, object, use case
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiextensionLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WebWindowsmacOSLinux
- UML diagram types
- class, state, composite structure, feature, entity-relationship, instance
- Code generation
- Yes
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan
- Free plan
- Yes
- UML diagram types
- class diagrams; use cases; state machines; activities; interaction diagrams; SysML requirements models
- Code generation
- Yes
- Reverse engineering
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WebWindowsmacOSLinux
- UML diagram types
- Class, Object, Package, Component, Composite Structure, Deployment, Profile, Use Case, Activity, State Machine, Sequence, Communication, Timing, Interaction Overview
- Code generation
- Yes
- Reverse engineering
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WindowsmacOSLinux
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms$129/mofirst paid tier About StarUMLVisit site - Free plan Web
- Free plan
- Yes
- UML diagram types
- Use Case, Class, Sequence, Activity, Deployment, ER, EER
RecognisedDocumentedFree planFree trialPlatforms - WebWindows
- Free plan
- No
- Team collaboration
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WebWindowsLinux
- UML diagram types
- Class, activity, object, sequence, state, use case
RecognisedDocumentedFree planFree trialPlatforms -
- UML diagram types
- Class diagrams; component diagrams
- Code generation
- Yes
- Reverse engineering
- Yes
RecognisedDocumentedFree planFree trialPlatforms
Is your platform on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which uml modeling software is ranked first on The Geeks Club?
Visual Paradigm is ranked #1 of 21 with a score of 8.7. Sparx Enterprise Architect is second and BOUML third.
How many of these have a free plan?
14 of the 21 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Visual Paradigm has the lowest first paid tier we found: $4/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.
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