Best UML Modeling Software in 2026
Updated
In short: BESSER is ranked #1 of 24 as of 4 October 2026, ahead of ArgoUML and BOUML. The best-ranked option with a free plan is ArgoUML. The lowest first paid tier on this page is Visual Paradigm at $4/mo.
UML modeling tools support creating and maintaining software models, with different options for diagrams and development workflows. Compared on UML diagram types, code generation and reverse engineering, the entries show which modeling capabilities to weigh. Model repositories and team collaboration may shape how work is organized, while deployment and supported platforms help narrow practical fit. Free-plan availability and paid-from pricing offer cost context. BESSER and Umple open the ranking, followed by ArgoUML. Compare these listed features with the models you need to create or maintain and the platforms and collaboration arrangements that suit your work.
24 UML modeling software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
24ranked
9free plans on this page
$4/molowest paid tier
4 Oct 2026last checked
Input list UML Modeling Software 24 channels on this page · 97 of 192 spec lines stated by the makers
Ch Tool Free planPaid fromUML diagram typesCode generationReverse engineeringTeam collaborationDeploymentSupported platforms Spec sheet Score
01 BESSER Free planYesPaid fromnot statedUML diagram typesclass, object, state machineCode generationYesReverse engineeringnot statedTeam collaborationYesDeploymentbothSupported platformsweb, Linux, macOS, Windows 6/8spec lines stated 7.4
02 ArgoUML Free planYesPaid fromnot statedUML diagram typesclass, statechart, activity, use case, collaboration, deployment, sequenceCode generationYesReverse engineeringYesTeam collaborationnot statedDeploymentdesktopSupported platformsWindows, macOS, Linux via Java runtime 6/8spec lines stated 7.2
03 BOUML Free planYesPaid fromnot statedUML diagram typesuse case, sequence, communication, class, composite class, activity, state, object, composite object, component, deploymentCode generationYesReverse engineeringYesTeam collaborationYesDeploymentdesktopSupported platformsWindows, Linux, macOS 7/8spec lines stated 7.2
04 BridgePoint Free planYesPaid fromnot statedUML diagram typesClass, component, state machine, interaction, activity, use case, sequence, communication/collaborationCode generationYesReverse engineeringnot statedTeam collaborationYesDeploymentdesktopSupported platformsWindows, macOS, Linux 6/8spec lines stated 7.2
05 Gaphor Free planYesPaid fromnot statedUML diagram typesClass, Component, Action, Sequence, Interaction, State Machine, Use Case, Deployment, Information FlowCode generationYesReverse engineeringnot statedTeam collaborationYesDeploymentdesktopSupported platformsWindows, macOS, Linux 6/8spec lines stated 7.2
06 Horusec Free planYesPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 1/8spec lines stated 7.2
07 Violet UML Editor Free plannot statedPaid fromnot statedUML diagram typesClass, activity, object, sequence, state, use caseCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentbothSupported platformsWeb, Windows, Linux 3/8spec lines stated 7.1
08 Visual Paradigm Free planYesPaid from4/user/moUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 2/8spec lines stated 7.1
09 Astah Professional Free planYesPaid fromnot statedUML diagram typesClass, Use Case, State Machine, Activity, Sequence, Timing, Communication, Component, Deployment, Composite StructureCode generationYesReverse engineeringYesTeam collaborationYesDeploymentdesktopSupported platformsWindows, macOS, Linux 7/8spec lines stated 7.0
10 Umple Free plannot statedPaid fromnot statedUML diagram typesclass, state, composite structure, feature, entity-relationship, instanceCode generationYesReverse engineeringnot statedTeam collaborationYesDeploymentbothSupported platformsweb, Windows, macOS, Linux, Docker 5/8spec lines stated 7.0
11 Altova UModel Free planNoPaid fromnot statedUML diagram typesClass, activity, component, communication, composite structure, deployment, interaction overview, object, package, profile, sequence, state machine, timing, use caseCode generationYesReverse engineeringYesTeam collaborationYesDeploymentdesktopSupported platformsWindows 10, Windows 11, and Windows Server 2016 or newer 7/8spec lines stated 6.7
12 PragmaDev Studio Free planYesPaid fromnot statedUML diagram typesClass, structural, use case, sequence, state chartCode generationYesReverse engineeringnot statedTeam collaborationYesDeploymentdesktopSupported platformsWindows, Linux, macOS, Raspbian 6/8spec lines stated 6.5
13 Sparx Enterprise Architect Free planYesPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 1/8spec lines stated 6.5
14 kUML Free plannot statedPaid fromnot statedUML diagram typesClass, Object, Package, Component, Composite Structure, Deployment, Profile, Use Case, Activity, State Machine, Sequence, Communication, Timing, Interaction OverviewCode generationYesReverse engineeringYesTeam collaborationnot statedDeploymentbothSupported platformsWindows, macOS, Linux, web browser 5/8spec lines stated 6.3
15 UMLet Free planYesPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 1/8spec lines stated 6.3
16 StarUML Free planNoPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 1/8spec lines stated 6.2
17 JetUML Free planYesPaid fromnot statedUML diagram typesclass, sequence, state, object, use caseCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentdesktopSupported platformsWindows, macOS, Linux 4/8spec lines stated 6.0
18 Rodin Platform Free planYesPaid fromnot statedUML diagram typesUML-B class diagrams; UML-B state-machine diagramsCode generationYesReverse engineeringnot statedTeam collaborationnot statedDeploymentdesktopSupported platformsnot stated 4/8spec lines stated 6.0
19 UML Lab Free plannot statedPaid fromnot statedUML diagram typesClass diagrams; component diagramsCode generationYesReverse engineeringYesTeam collaborationnot statedDeploymentdesktopSupported platformsnot stated 4/8spec lines stated 6.0
20 Eclipse Papyrus Free planYesPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 1/8spec lines stated 5.9
21 objectiF RPM Free planNoPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationYesDeploymentbothSupported platformsWindows, web browser 4/8spec lines stated 5.8
22 UMLGen Free planYesPaid fromnot statedUML diagram typesUse Case, Class, Sequence, Activity, Deployment, ER, EERCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentwebSupported platformsWeb browser; desktop, tablet, and mobile browsers 4/8spec lines stated 5.7
23 AgileUML Free planYesPaid fromnot statedUML diagram typesclass diagrams; use cases; state machines; activities; interaction diagrams; SysML requirements modelsCode generationYesReverse engineeringYesTeam collaborationnot statedDeploymentdesktopSupported platformsnot stated 5/8spec lines stated 5.6
24 Modelio Free planYesPaid fromnot statedUML diagram typesnot statedCode generationnot statedReverse engineeringnot statedTeam collaborationnot statedDeploymentnot statedSupported platformsnot stated 1/8spec lines stated 5.4
Is your tool 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 Specifiction?
BESSER is ranked #1 of 24 with a score of 7.4. ArgoUML is second and BOUML third.
How many of these have a free plan?
9 of the 24 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 what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.
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