PlantText is described as 'The PlantText tool is an online tool for quickly creating UML (Unified Modeling Language) diagrams. Unlike most tools, PlantText can build diagrams without the use of a mouse because it is based on PlantUML markup language' and is a UML Modeling tool in the development category. There are more than 50 alternatives to PlantText for a variety of platforms, including Windows, Web-based, Mac, Linux and Android apps. The best PlantText alternative is draw.io, which is free. Other great apps like PlantText are LibreOffice - Draw, yEd Graph Editor, Dia and Lucidchart.
Lightweight, powerful, easy to use, UML tool
Software Ideas Modeler is a lightweight and powerful CASE tool. It supports UML 2.2 diagrams and a lot of other ones. Software Ideas Modeler is freeware (for non-commercial use). Commercial user may use this software only after buying.
Mindmapping, brainstorming and progress tracking tool for creatives and software developers. Simple and effective to use, letting just go the flow of creativity.
Core2D is a multi-platform application for making data driven 2D diagrams. The application has built-in wyswig vector graphics editor where you can bind data to shapes, share data across multiple documents, edit documents using layers.
NClass is a free tool to easily create UML class diagrams with full C# and Java language support. The user interface is designed to be simple and user-friendly for easy and fast development. Properties, enums, delegates and other language specific elements are fully supported...
Free Sequence Diagram Tool Online. Clean simple interface and fast client side processing. Works Online and Offline, Scripting and Drag and Drop.
WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to recent Delphi editions, reducing dependence on third party components and fixing bugs and adding new features.
Nevron Vision for .NET provides a complete set of components for data visualization that integrate with WinForms, Wpf, ASP.NET, and MVC applications.
Grapholite is a powerful online solution for the creation of flowcharts, org charts, mind maps, Venn charts, web site structures, etc. Can be used online and offline
UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide support for all types UML diagrams.
Graphity is a diagram editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks.
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