An easy-to-use block diagram maker

Block diagrams help you visualize systems, creating a common understanding for development teams. Get started in seconds with our free block diagram maker, and get everyone on the same page in minutes.
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accenture.svgbumble.svgdelloite.svgdocusign.svgcontentful.svgasos.svgpepsico.svghanes.svghewlett packard.svgdropbox.svgmacys.svgliberty mutual.svgtotal.svgwhirlpool.svgubisoft.svgwalt disney.svgyamaha.svgwp engine.svg

More than just an online block diagram creator

Diagram your connections, model objects, and visualize your system complexity with a block diagram online. Invite your team to work with you directly on your board and plan out new systems or quickly iterate on existing ones.
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Why Miro’s block diagram maker stands out

Brainstorm

Quickly visualize interactions

Create a block diagram using Miro's Diagramming mode. Enjoy a curated diagramming toolbar, visualize current and future states using layers, and add custom shapes. Design workflows, software development, hardware design, or any non-technical algorithm.
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Communicate your vision

Easily represent your block diagram components using our extensive diagramming shape library, and seamlessly collaborate. Tag team members in comments to keep everyone in the loop on conversations that matter.
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Reduce complexity

Visualize entire systems using Miro’s block diagram maker — no matter how complex. Use our infinite canvas to illustrate your block diagram in detail and visually communicate technical flows to everyone, even to non-technical stakeholders.
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Iterate and innovate

Miro’s block diagram maker helps you zoom out, allowing you to see entire systems at a glance, all in one board. Turn the infinite canvas into an exploration field and create the conditions for creative solutions.
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Break down silos

Improve cross-functional collaboration by inviting other teams to access your board. Miro’s visual workspace makes capturing and organizing ideas easy with comments, sticky notes, and video.
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Share it

Share your board with the whole team with just a few clicks, or download your block diagram as an image or PDF file. Quickly circulate your block diagram so stakeholders can weigh in and move projects forward.

Integrated with your favorite tools

Ideas, inspiration, and intel in full view. Visualize marketing campaigns and client and prospect info to take action, and track tasks and status updates for the team.
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Related templates

How to create a block diagram online

1. Start a new Miro board

Head to the toolbar on your Miro board and click on “Templates” to open our free Block Diagram Template.
An image showing how to create a block diagram online in Miro's block diagram maker

2. Populate the template

Identify the input, output, process blocks, and interactions. Add names to each component and use connection lines to represent flows.

3. Add labels

Label arrows to identify important processes. If you used multiple types of connection lines, add a legend to easily differentiate between them.

4. Make it yours

Color-code your block diagram to identify stages and processes. Drag and drop any icons you need. Resize and frame your block diagram to fit your presentation or working board.
See more in detail
An image showing how to create a block diagram online in Miro's block diagram maker

Block diagram maker FAQs

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Do you have block diagram templates to get started?

Use our free and customizable Block Diagram Template to start diagramming, or browse our community templates to leverage your knowledge and get inspired.

Can I customize my block diagram in Miro?

Miro’s block diagram creator allows you to fully customize your design, giving you the flexibility you need to diagram according to specific projects or needs.

What is the difference between a block diagram and a flowchart?

A block diagram represents system components using blocks, showcasing their relationships and interactions. A flowchart is more widely used to describe information or data flow. They are both very similar but serve different purposes.

Can I share or download my block diagram?

Yes. In Miro’s block diagram creator, you can either download your block diagram as an image or PDF file, share a link to your board, or embed it on other sites.

Get on board in seconds

Join thousands of teams using Miro to do their best work yet.
accenture.svgbumble.svgdelloite.svgdocusign.svgcontentful.svgasos.svgpepsico.svghanes.svghewlett packard.svgdropbox.svgmacys.svgliberty mutual.svgtotal.svgwhirlpool.svgubisoft.svgyamaha.svgwp engine.svg
accenture.svgbumble.svgdelloite.svgdocusign.svgcontentful.svgasos.svgpepsico.svghanes.svghewlett packard.svgdropbox.svgmacys.svgliberty mutual.svgtotal.svgwhirlpool.svgubisoft.svgyamaha.svgwp engine.svg