Inkscape is an Open Source vector graphics editor, with capabilities similar to Illustrator, CorelDraw, or Xara X, using the W3C standard Scalable Vector Graphics (SVG) file format.

Note: This software is now renamed as "diagrams.net", however, it is still popularly known as "draw.io".

A comprehensive design application combining innovative photo and video editing with advanced AI capabilities to streamline creating designs. Users can produce unique graphics, engaging social media content using customizable templates and thousands of images, videos, and fonts accessible through its vast li...

OmniGraffle can help you make eye-popping graphic documents—quickly—by providing powerful styling tools, keeping lines connected to shapes even when they’re moved, and magically organizing diagrams with just one click.

Wondershare EdrawMax is a software designed for creating various diagrams and charts including flowcharts, mind maps, and business diagrams. It also provides a user-friendly floor planning solution and a visual reference for complex electrical systems.

Instead of starting with a blank screen, SmartDraw gives you the exact template you need. Then use simple commands to add your information and SmartDraw does the rest. There's no other drawing software like it.

Chemix is a free online editor for drawing science lab diagrams and school experiment apparatus. Easy sketching for both students and teachers

Bioicons is a free library of open source icons for scientific illustrations using vector graphics software such as Inkscape or Adobe Illustrator.