BridgePoint vs Violet UML Editor

BridgePoint is a desktop tool suite for UML model editing, simulated execution, and translation in model-driven development. Built on Eclipse, it combines an editor, the Verifier, and model compilers. The Verifier runs and debugs models with stack tracing, variable views, stepping, and breakpoints. Compilers translate models into implementation languages such as C or SystemC and can conform to standards including IP-XACT, AUTOSAR, and MISRA-C. Modeling constructs provide ways to connect models to existing code and libraries. The Editor, Verifier, and Model Compilers are available under the Apache 2.0 license at no cost. Installable zip builds include the Eclipse and BridgePoint environment, so no prior software is required. BridgePoint supports Windows, macOS, and Linux, and includes class, component, state machine, interaction, activity, use case, sequence, and communication or collaboration diagram types. Nightly builds contain the newest code but are described as the least tested engineering delivery. Production projects can obtain BridgePoint Pro releases and support through a Service Pro contract.

Violet UML Editor is a free, open-source application for drawing simple UML diagrams quickly. It supports class, activity, object, sequence, state and use case diagrams. The project describes Violet as easy to learn and use, and intended for developers, students, teachers and authors who need straightforward UML diagrams. Violet is licensed under GNU General Public License version 2.0 (GPLv2) and is written in Java, with Java Swing and Java SWT listed as interfaces. Linux, Mac and Windows are named operating systems, while the platform listing also includes web. The source repository directs users to SourceForge for downloads. Building from source requires Java Development Kit 17 or greater and Maven 3 or greater; the repository specifies running `mvn clean package` from the root directory to compile and package the project. The maintainer invites contributors to submit pull requests and says requests will be examined before contacting contributors. Violet has one listed plan: free, described as a completely free, cross-platform UML editor. Deployment is listed as both, with web, Windows and Linux among supported platforms.