Open Source Tools For Software Design Diagrame

Design Software Easier with Visuals

With SmartDraw, building software is easier. We won't write the code for you, but we can help you plan and execute your design better through professional visuals that make communication and collaboration a breeze.

SmartDraw comes with dozens of software diagram templates. Pick a template that fits your project, click a few, simple commands and SmartDraw builds your diagram for you, automatically.

Software design example

Build Class Diagrams Automatically from Code

SmartDraw lets you build class diagrams using your source code, without any drawing at all. Using the Class Diagram extension, you can point SmartDraw at any repository and generate a class diagram with all its methods and properties automatically.

Learn more about generating class diagrams from code.

Automatic class diagram

Top Reasons SmartDraw is the Perfect Software Diagram Maker

Automated Diagrams from Data
Click simple commands and SmartDraw builds your software design diagram for you, automatically using your code repository.
Intelligent Formatting for Software Design
Add or remove a shape, and SmartDraw realigns and arranges all the elements so that everything looks great.
Make Software Design Diagrams Online
Use SmartDraw on your computer, browser or mobile device—Windows^®, Mac^®, Android^®, iOS^®, or any other platform with an internet connection. Whether you're in the office or on the go, you'll enjoy the full set of features, symbols, and high-quality output you get only with SmartDraw.
Quick-Start Software Design Templates
Dozens of professionally designed data flow and software design diagram examples make you instantly productive. Simply choose the software design template that is most similar to your coding project, and customize to suit your needs.
Free Support
Got a question? Call or email us. SmartDraw experts are standing by ready to help, for free!

Software design templates

Effortless Collaboration

You and your team can work on the same software design by saving it to a shared SmartDraw folder or by using your favorite file sharing apps like Dropbox^®, Google Drive^®, Box^® or OneDrive^®. You can also share files with non SmartDraw users by simply emailing them a link.

SmartDraw collaboration

Smart Integration

Share your software design diagram in a variety of common graphics formats such as a PDF or PNG. You can also export it to any Office^® or Google Workspace^™ application in just a few easy clicks.

SmartDraw is also fully integrated with Atlassian's Jira and Confluence. You can also easily add software designs to your Trello boards.

SmartDraw integrates with the tools you use

Software Design Examples

SmartDraw has templates to make data flow diagrams, entity relationship diagrams, activity diagrams, class diagrams, component diagrams, object diagrams, and much more. If you need to visualize it, SmartDraw has the symbols and templates to help.