GraphUp is described as 'Online diagram generator that let's you build UML diagrams like sequence diagrams and gantt diagrams using very simple code. All main features are free, no need to create an account or login, the editor vailable right online' and is a Diagram Editor in the development category. There are more than 25 alternatives to GraphUp for a variety of platforms, including Web-based, Mac, Windows, Linux and Android apps. The best GraphUp alternative is draw.io, which is both free and Open Source. Other great apps like GraphUp are Penpot, LibreOffice - Draw, Pencil Project and yEd Graph Editor.
Design flowcharts, UML, Venn, and mind map diagrams with customizable templates, varied symbols, shapes, connector styles, overlapping sheet support, and intuitive drag-and-drop editing. Export visuals as images, edit multiple diagrams, and organize complex data visibly.
Cacoo is a user-friendly online diagramming tool that allows you to create a variety of diagrams such as wireframes, flowcharts, UML diagrams, network diagrams, mindmaps, sitemaps, database diagrams, and more.
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...
PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.
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.
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 .
Free Sequence Diagram Tool Online. Clean simple interface and fast client side processing. Works Online and Offline, Scripting and Drag and Drop.
A tool for drawing flowchart and sequence diagrams with a simple, concise and easy to use syntax, in a similar manner as markdown.
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
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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