Graphviz graph visualization software is well suited to network diagrams, machine learning, database connections, bioinformatics, and so on. The mobile version of this alternative for Visio comes with UI stencils, shapes, and status bars to prototype on the go.

Other features include drag-and-drop editing, template libraries, data linking, and so on. Pencil’s integration with lets users search the Web for images/ clip arts quickly. You can export diagrams to formats like PNG, PDF, SVG, Open Document, among others. The software supports connectors to wire shapes together in a diagram. It offers built-in shapes collections for UI designs and flowcharts. Pencil is an open-source GUI prototyping software with a user-friendly interface that anyone can use, from beginners to experts. Supported Platforms: Linux, Mac OS X, Windows Other options include grouping objects, gradient editor, embedded bitmaps, and so on. Inkspace supports PNG, PDF, DXF, PostScript export formats and more. You can draw exactly what you need onto the Inkscape canvas via freehand drawing tools. This open-source diagramming software is possible to use any installed outline fonts for text, including right-to-left scripts. It offers shape tools like rectangle, star, ellipse, spiral, and the control bar parameters for editing. Inkscape is a free and open-source vector graphics editor that enables flowcharts and data flow diagrams. However, it requires the installation of OpenOffice on the system. You can also develop SWF flash files of your drawings. It is possible to import graphics from various popular formats like JPEG, PNG, BMP, GIF, TIFF, etc. Sophisticated rendering features enable the creation of photorealistic images. In addition, this open-source network diagram software has a 3D controller to create shapes like spheres, rings, and cubes quickly. You can draw everything from a quick sketch to a complex plan with the maximum page size of 300cm by 300cm. It’s an offline software and comes as a part of LibreOffice, already present in Linux.Īpache OpenOffice Draw offers drawing, style, and formatting tools to create different types of diagrams like graphs, posters, charts, and more. Other features such as photo album creation from a gallery and pdf-file editing are also supported. You can export the diagrams in XML, SWF flash files, and so on. The grouping feature enables users to bring different objects together and move/ connect all of them at one time. It provides flexible diagramming tools like smart connectors, dimension lines, etc.

Openoffice drawing