ClickCharts is described as 'Create flowcharts, UML, Venn, and mind map diagrams with customizable templates, a drag-and-drop editor, and export options for sharing visual data easily' and is a Diagram Editor in the office & productivity category. There are more than 100 alternatives to ClickCharts for a variety of platforms, including Windows, Mac, Web-based, Linux and iPad apps. The best ClickCharts alternative is draw.io, which is both free and Open Source. Other great apps like ClickCharts are Excalidraw, LibreOffice - Draw, yEd Graph Editor and Dia.
TiddlyMap is a TiddlyWiki plugin that turns your favourite personal note taking software in a wiki-concept-map hybrid! Yes, you will be able to do both: drawing maps and putting down knowledge in a wiki way.
Germany
EU
Visual Paradigm for UML (VP-UML) is a UML design tool and UML CASE tool designed to aid software development. VP-UML supports key modeling standards such as Unified Modeling Language (UML) 2.4, SysML, ERD, DFD, BPMN 2.0, ArchiMate 2.0, etc.
Hong Kong SAR China
VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts. Such maps can help you to improve your creativity and effectivity. You can use them for time management, to organize tasks, to get an overview over complex contexts, to sort your ideas etc.
GermanyEU
OmniGraffle can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to shapes even when they’re moved, and magically organizing diagrams with just one click.
United States
Mind mapping software with AI for generating ideas, infinite canvas, over 10 import/export formats, personalized layouts, real-time collaboration, Gantt charts, and encryption. Perfect for brainstorming, project planning, and knowledge management across platforms.
China
A streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes.
RomaniaEU
Visualize projects, ideas, and strategies with mind maps, charts, and diagrams. Manage tasks, meetings, and information using attachments, embedded browsers, and templates. Collaborate in teams and integrate with multiple platforms, including Office and cloud services.
Canada
Umbrello is a Unified Modelling Language (UML) modelling tool and code generator. It can create diagrams of software and other systems in the industry-standard UML format, and can also generate code from UML diagrams in a variety of programming languages.
GermanyEU
Gaphor is a WYSIWYG (What You See Is What You Get) UML and SysML modeling environment easy to use that will help you create your applications.
NetherlandsEU
Penrose is a platform that enables people to create beautiful diagrams just by typing mathematical notation in plain text. The goal is to make it easy for non-experts to create and explore high-quality diagrams and provide deeper insight into challenging technical concepts.
United States
Axure RP is the leading tool for rapidly creating wireframes, prototypes and specifications for applications and web sites.
United States
StarUML is a program to develop fast, flexible, extensible, featureful, and freely-available UML/MDA platform running on Win32 platform. The goal of the StarUML project is to build a software modeling tool and also platform that is a compelling replacement of commercial UML...
South Korea
