SmartDraw is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The most popular Linux alternative is 
Pencil Project, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to SmartDraw and 11 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to SmartDraw are 
Dia (Free, Open Source), 
yEd Graph Editor (Free), 
LibreOffice - Draw (Free, Open Source) and 
PlantUML (Free, Open Source).
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. If you're looking for more info about SmartDraw like screenshots, reviews and comments you should visit our info page about it. Below you find the best alternatives.
Pencil is a standalone app or Firefox extension* that lets you create diagrams or UI mockups. It doesn't have collaboration/multi-user features. The Pencil Projects unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use.
Dia is a GTK+ based diagram creation program for Linux, Unix, Mac OS X and Windows released under the GPL license. Dia is roughly inspired by the commercial Windows program Microsoft Office Visio, though more geared towards informal diagrams for casual use. It can be used to draw many different kinds of diagrams. It currently has special objects to help draw entity relationship diagrams, UML diagrams, flowcharts, network diagrams, and many other diagrams.
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, organization charts, mind maps, and many other kinds of diagrams, graphs, and networks. Choose from a wide range of highly sophisticated layout algorithms to automatically arrange diagrams in no time.
Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.
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. Mostly based on Graphviz. Can render various diagram syntax such as PlantUML, Dot, and Ditaa.
Creating flowcharts, organizational charts, business diagrams, science illustration, network diagrams, mind map and lots more.
IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard. Run it in less than one minute - without installation - always in the latest version. IYOPRO offers modelling, simulation and workflow automation in three editions. There are various operating modes available: SaaS within the browser, installed out of the browser and on premise.
MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software. MockupTiger provides widgets for building quick website wireframes, mobile stencils and dashboard charts. The dashboard chart accept data so you can prototype realistic charts. It provides consistent approach that is both simple and extensible.
Creately makes diagramming and design easy. We do this with an access anywhere, online application that is purpose built for collaboration. Creately allows teams to solve problems and collaborate visually. It stands out from the crowd for its ease of use and intuitive interface. Built-in collaboration, revision control, 1-click publishing on the Internet and Smart Objects make Creately the easiest and most powerful online diagramming application today.
Install the Free Thortspace App on Windows, Mac, Android, iPad and Linux… The world’s first collaborative 3D mind mapping software. Breakthrough thinking, whenever and wherever it is needed most. Thortspace has many different possible applications; however, the great potential is to help those individuals or organisations in the formative stages of getting their thoughts together.
