Create Your Block Diagram It’s free and easy to use.

This website uses cookies to improve the user experience. By using our website you consent to all cookies in accordance with our cookie policies included in our privacy policy.

Charts and Graphs > Block Diagrams

Professional Block Diagram Maker for Easy Diagramming

Create Your Block Diagram It’s free and easy to use..
A block diagram template available in Visme.
  • Block diagram maker with a drag-and-drop interface.
  • Easy-to-use connectors for comprehensive workflows.
  • Customize text, colors, sizes and positions quickly and easily.

Chosen by brands large and small

Our block diagram maker is used by over 10,209,854 marketers, communicators, executives and educators from over 120 countries that include:

Brand 6
Brand 6
Brand 6
Brand 6
Brand 6
Brand 6

Block Diagram Templates

While you can always start a design from scratch, Visme also provides pre-built templates designed by professionals. These templates empower you to create high level designs fast. All you have to do is swap out the content, connect and reconnect lines where necessary, and modify the color and fonts.

select * from templates where type = 'infographic' and (category LIKE '%flowchart%' or content_type LIKE '%flowchart%' or name LIKE '%flowchart%' or keywords LIKE '%flowchart%') order by is_featured DESC , is_premium ASC LIMIT 0,8

Features of the Block Diagram Maker

Need to create block diagrams to help explain complex systems and processes to non-technical users or team members? Visme enables you to make block diagrams easily.

Beautiful block diagram templates

Are you wondering, where can I create a block diagram? Starting with a block diagram template is an excellent way to get a head start on your design based on diagrams that have succeeded in the past. Start with the basic structure, then customize text and shapes to rearrange the diagram for your specific use.

Create Your Block Diagram
A selection of block diagram templates available in Visme.

Build your block diagram

Visme’s block diagram software helps you rapidly prototype diagrams by quickly adding shapes, connecting them to lines, and moving them around the canvas to properly illustrate the complex system.

Colors and icons available in Visme's editor.

Customize every aspect of your block diagram to better organize your thought process

Customize everything inside the free online block diagram maker. It's easy to resize your shapes while keeping the relevant lines connected. You can also customize the lines making them thicker, longer, or changing their direction. You can also insert your custom text inside the shapes and modify the color and shape at will.

Diagramming tools available in Visme.

More Great Features of the Block Diagram Maker

  • template-many Library of premade templates to help explain your complex system
  • icon-photos Hundreds of thousands of icons and photos to choose from
  • fonts Add in your own branded fonts and colors to make it your own
  • drag-drop Easy drag-and-drop design tools, made with the non-designer in mind
  • customize Choose a custom line and shape style, then draw out your block diagram
  • download-upload Download as an image file or embed on a webpage
An illustration showing all the ways to share a flowchart made with Visme.

Share Your Block Diagram

After you finish your creation, there are many ways to share your block design in Visme. After finishing with the block diagram tool, you can quickly and easily share it with your audience by embedding your UML diagram on a webpage, generating a shareable link or downloading it in a variety of different formats.


What is a Block Diagram?

A block diagram is a flowchart to provide a visualization of complex systems and their interactions. These circuit diagrams help your users get a high level overview of the working relationships in a system.

You can easily create your own professional block diagram using a diagramming tool like Visme. Start with a basic template and customize your own diagram to build out your process.

Create Your Block Diagram
A selection of block diagram templates available in Visme.

Use the block diagram maker to organize ideas and visualize concepts.

You can find the free online block diagram maker inside the Data tab on the left-hand panel of the Visme editor. Select a shape to begin building your diagram. Use the customizable building tools to attach lines to the block diagram in the directions you need.


More Than a Block Diagram Maker

Visme’s circuit block diagram maker gives you more options than most online tools. With a variety of shapes and line designs to choose from, the ability to drag and drop different elements all over the canvas, and easy-to-use ER diagram-making capabilities, you’ll be able to make block diagrams in minutes.


Create interactive and animated block diagrams that are clickable and engaging for your audience to look through and learn more about your idea.

Charts & Graphs

Utilize Visme’s block diagramming tools along with other charts and graphs to visualize all kinds of information in the blink of an eye.

Images & Graphics

Choose from over a million stock photos, icons, illustrations, characters, lines, shapes and more to decorate your diagrams and accent your content.


Make Block Diagrams in 5 Steps

Visme makes it easy to simplify even the most complex systems. Need to make precise connections? It’s easy to edit and attach shapes as you go.

Our drag and drop diagramming tool makes it simple to control your diagram. Follow this five-step tutorial to learn more.

  • Log in to the Visme dashboard and click the Flowcharts icon in the Data tab.
  • Select it and choose your initial shape for the block diagram.
  • Click on a second shape and an arrow to connect them.
  • Add relevant text to the shapes and customize the color, size and font.
  • Download your finished design from the block diagram creator as an image file.

How to Use the Block Diagram Maker

  • Start by getting an idea of the entire system that you need to represent and its various interactions.
  • Sketch a quick rough draft of your block diagram map to understand how you want it to look.
  • Log in to the Visme dashboard and choose a blank canvas or a block diagram template.
  • Click on the Data tab, located on the left-hand panel. Choose the flowchart tool from the menu.
  • Select the first shape to start building your block diagram.
  • Add symbols to your block diagram to represent the crucial elements of your system.
  • Customize the size of shapes and lines. If you need to move a line and shapes to another section, just un-attach it and attach it somewhere else.
  • Make sure to label all of the inputs and outputs correctly.
  • Change the font, color, and size of the text inside your block diagram.
  • Download your diagram from the free online block diagram maker, and add it to an email or message. Also, you can embed the flowchart to your website with just a little snippet of code.

Frequently Asked Questions (FAQs)

How much does it cost to make a block diagram with the free online block diagram maker?

You can create block diagrams online for free with Visme. You can add a block diagram to any project or create one on its own. Download your diagram as a JPEG image file in one click. To download as a PNG, PDF, GIF or HTML, you’ll need to upgrade to a premium plan.

What is a system block diagram?

System block diagrams provide non-technical team members or users a simple view of how the major components, inputs and outputs, and working relationships interact in a system.

Is everything customizable inside the block diagram maker?

Yes. All shapes and lines inside the lock diagram tool are customizable in size, color and position for easy-to-use formatting.

What is the best software for creating block and network diagrams?

The top flowchart software to create comprehensive block diagrams and mind maps is Visme. While other tools, like Lucidchart,, Visio, Gliffy, SmartDraw and Creately can help with the basics, Visme’s advanced features allow you to create easy-to-understand diagrams as well as several other content and diagram types.

Are there any block diagram templates I can use?

Absolutely! You can find the block diagram templates inside the dashboard and we are creating more all the time!

How do you create a block diagram?

You can draw block diagrams online quickly and easily with Visme, regardless of whether you’re using a Mac or PC. Start by bringing to mind the system you want to visualize. Then, add symbols to your diagram. Next, make sure to label all inputs and outputs properly. Lastly, share it with your audience!