Block diagram maker
Lucidchart is an intelligent diagramming application that combines diagramming, data visualization, and collaboration to accelerate understanding and drive innovation.
A simplified block diagram software
Design, visualize, and improve your system
A block diagram is a specialized flowchart typically used by engineers to provide a visualization of systems and their various interactions. Block diagrams are ideal for creating a high-level overview of a system to account for major system components, visualize inputs and outputs, and understand working relationships within your system. Our block diagram maker is the ideal diagramming solution to help engineers tackle complex system overviews when designing hardware or software, implementing process improvements, and more.
Diagram effortlessly with built-in shapes and templates
Easily create and customize professional block diagrams with Lucidchart’s complete range of diagramming features. If you prefer to start from scratch, our block diagram creator includes shape libraries with hundreds of industry-standard symbols and notations for electrical components, audio systems, and more. Or you can get started on your diagram even quicker when you select one of our customizable templates from our template library. Once your diagram is built, use our intelligent formatting features to arrange it how you please.
Collaborate, present, and share your work for universal understanding
Block diagrams are an ideal resource for communicating a high-level overview of your system to stakeholders and less technical employees. With our block diagram software, you can take advantage of powerful collaboration features like in-editor chat, comments, and @mention notifications to enable teams to work together in real time, no matter their device or location. Share your diagram via email or published link to create an easily accessible reference for individuals or teams. With our in-editor presentation mode, you can present your work to any audience without ever leaving the Lucidchart editor.
Leverage integrations to access, edit, and share your work in your favorite apps
Lucidchart is fully integrated with today’s popular workplace apps, including those most commonly used by engineers. Insert block diagrams and other visuals that you have created in Lucidchart directly into Confluence wikis and Jira issues using our Atlassian apps. Include a link to your live Lucidchart document, complete with a preview, to provide more context for issues and pull requests within GitHub. Thanks to powerful integrations with G Suite, Microsoft Office, Microsoft Teams, Slack, and other platforms, you can access, edit, and share your diagrams from anywhere.
How to make a block diagram online
Start with a system to visualize
Start with a blank canvas, or select and edit one of our templates. Then identify all the components, inputs, and outputs within your system.
Add symbols to your block diagram
Use Lucidchart's drag-and-drop interface to add symbols and notation onto your canvas. As you build out your block diagram, connect shapes with arrows to indicate the flow of data.
Label inputs and outputs
Identify and label the input that starts your block diagram. Then identify and label the output that ends the block diagram.
Present, publish, or share
Present your block diagram with our in-editor presentation mode or share it directly as a published link or across any of our supported integrations.
Frequently asked questions about our block diagram generator
Visualize your system with Lucidchart’s block diagram maker
Used by millions across the globe
"I come to Lucidchart any time I need to design any sort of system or process. I use it to figure things out for myself or to communicate ideas to others."
4.5/5 stars 650+ reviews