The best free alternative to Graphviz is yEd Graph Editor. If that doesn't suit you, our users have ranked more than 50 alternatives to Graphviz and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Graphviz are Mermaid, PlantUML, Gephi and D3.js.
yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams...
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.
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.
Gephi is the leading visualization and exploration software for all kinds of graphs and networks. Gephi is open-source and free.
D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.
Efficient web-based tool for constructing high-quality commutative diagrams. Offers LaTeX export with embedded links, intuitive interface supporting both mouse and keyboard inputs, and features like multiple selections, macro support, and smart label alignment.
Google Drawings, part of Google Drive, allows users to collaborate creating, sharing, and editing images or drawings. It can be used for creating charts, diagrams, designs, flow-charts, etc.
Creates diagrams from textual descriptions! It provides a unified API with support for BlockDiag, BPMN, Bytefield, C4 (with PlantUML), Ditaa, Erd, GraphViz, Mermaid, Nomnoml, PlantUML, SvgBob, UMLet, Vega, Vega-Lite, WaveDrom.
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.
Code2Flow is an innovative diagram creator that uses simple programming structure to build flowcharts in the most intuitive way possible. It employs syntax from the C programming language in a way that makes it easily usable for non-programmers and programmers alike.
Create flowcharts (and mind maps) without worrying about layout with QuikFlow. With our innovative interactive layout algorithms, you can work as if you were using a mind mapping application while creating flowcharts. Define your structure and the app handles the layout!
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.
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Also allows a way do display data as a graph. I used it to represent data from a spreadsheet.