Block Diagram Maker

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Create block diagrams, electrical circuit diagrams, schematics, and more easily.

Create Block Diagrams Easily - Online or On Your Desktop

Block diagrams are easier with built-in block diagram templates and specific block diagram generating tools. Just start with a template and customize it using SmartDraw's large selection of symbols. Add lines and connectors and SmartDraw's automation will help your shapes remain connected and organized.

Block diagram maker

Top reasons SmartDraw is the ideal block diagram software:

  • Quick-Start Templates
    Dozens of electrical design examples make you instantly productive. Choose a block diagram template that is most similar to your project and customize it to suit your needs.
  • Exhaustive Symbol Library
    You get hundreds of ready-made visuals and templates for electrical switches, sensors, relays, bulbs, analog devices, audio systems, NECA symbols and more!
  • Automatic Formatting
    SmartDraw helps you align and arrange everything perfectly. And SmartDraw's "intelligent" connecting lines stay attached to your components even when you move them around.
  • Free Support
    Got a question? Call or email us. SmartDraw experts are standing by ready to help, for free!
Block diagram templates

Effortless Collaboration

You and your team can work on the same block diagram using SmartDraw Cloud, or your favorite file sharing apps like Dropbox®, Google Drive or OneDrive®. You can also share files with non SmartDraw users by simply emailing them a link.

SmartDraw collaboration

Smart Integration

Use SmartDraw to create block diagrams on any 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.

When you diagram is complete, share it with your team or clients, by sending them a link, exporting it as a PDF, or inserting it into any Office® application in one click.

Export to Office

Create Block Diagrams and More:

  • Electric plans
  • Schematics
  • Circuit panels
  • And other engineering diagrams!

Try SmartDraw Free

Discover why SmartDraw is the ideal block diagram maker.