The best open source alternative to Code2flow is Graphviz. If that doesn't suit you, our users have ranked more than 10 alternatives to Code2flow and nine of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Code2flow are ASCIIFlow, Penrose, Graphs and DIagrams Through Ascii Art.
Graphviz is open source graph visualization software. Graph visualization is a way of representing structural information as diagrams of abstract graphs and networks. It has important applications in networking, bioinformatics, software engineering, database and web design...
Simple web based ascii flow diagram drawing tool, draw boxes, lines, arrows and type, then export straight to text/html.
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.
Graphs is a simple, yet powerful tool that allows you to plot and manipulate your data with ease. You can import data from two-column files or generate it via an equation. All data can be manipulated using a variety of operations such as the ability to select, cut, translate...
DIagrams Through Ascii Art (ditaa) is a small, command-line tool built with Java to convert diagrams drawn ASCII art into bitmap graphics. ditaa interprets ascci art as a series of open and closed shapes, but it also uses special markup syntax...
Flowchart.js is a JavaScript library for drawing SVG-based flow charts from a simple text markup language representing the diagrams. The library is open-source and based on Raphaël .
I am searching for flowchart maker app but in the search I am finding this app which do not have any means to create a flowchart. The app may be use full but irrelevant for the search.
Elm bot lines converts ASCII text-based diagrams to SVG drawing. It's built with Elm and is available to download through GitHub, or directly accessible as a web app.
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same principle with pseudo-code to flow-chart. syntax is slightly more difficult