Sites and apps similar to Diagramly include PlantUML, which is free and open source. Other options are Mermaid, Visual Paradigm, SciDraw and IngaBoard. You can choose from more than 10 Diagram Editors like Diagramly for Mac, Windows, Linux, self-hosting and Android.
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.
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EU
Ever wanted to simplify documentation and avoid heavy tools like Visio when explaining your code? This is why mermaid was born, a simple markdown-like script language for generating flowcharts, Gantt charts and sequence diagrams from text via JavaScript.
SwedenEU
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
Create publication-ready figures & data charts with AI. Illustration + Visualization in one platform. Trusted by 10,000+ researchers worldwide.
IngaBoard is a minimalist, keyboard-driven application that turns fragments of "Cause and Effect" into structured Directed Acyclic Graphs (DAG) instantly. No manual boxes, no dragging lines. By stripping away superficial decoration, we reveal the inherent beauty of structural truth.
Japan
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.
Turn blog posts, articles, and PDFs into engaging infographics. Generate visuals quickly and easily from your data in seconds.
Automatically generates diagrams and visuals from written ideas, streamlining communication and clarifying concepts for education, meetings, collaboration, or brainstorming, without design skills, with browser-based access and easy export or sharing options.
United States
Create Mermaid Chart, Graph and Diagram in minutes with AI Graph Maker. Transforms your data into stunning visualizations effortlessly.
Transforms plain descriptions into editable Mermaid diagrams, mindmaps, and UML models directly in the browser with instant or conversational modes, live code preview, Markdown, OPML, SVG, and PNG exports, clipboard sharing, and multilingual support.
China
Diagram-Generator is an AI-powered platform that transforms your ideas into professional diagrams and infographics. Simply describe what you want, and our AI creates it in seconds. We offer two modes: Draft Mode (free, unlimited, editable Mermaid diagrams) and Pro Vision...
