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 make sure everyone is rowing in the same direction.
Over 50M users love Miro
More than just a 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.
Why Miro is the best tool for diagramming
Quickly visualize interactions
Easily model complex systems and visualize interactions in one shared space. Miro’s block diagram creator allows you to diagram workflows, software development, hardware design, or any other non-technical algorithm with just a few clicks.
Communicate your vision
Use a ready-made diagramming UML shape pack that easily represents your block diagram components, and make co-creation simple. Tag team members in comments and seamlessly align on the same vision.
Miro’s block diagram maker allows you to visualize entire systems, no matter how complex. Use our infinite canvas to illustrate your block diagram in its totality and visually communicate technical flows to everyone, even to non-technical stakeholders.
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.
Break down silos
Improve cross-functional collaboration by inviting other teams to access your board. Miro’s visual collaborative space makes capturing and organizing ideas easy with comments, sticky notes, and video.
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.
Understand how the elements of your database interact with each other.
Plan object-oriented systems in a joint workspace that fosters collaboration and innovation.
Understand how external entities affect your system at a high level with a context diagram.
How to create a block diagram
Map out system components
Select the UML shapes representing your systems blocks. Identify the connections and interactions, and add the connector lines.
Label the blocks
Add names to each component and a legend to the connector lines for input and outputs. Add arrows representing your system’s flows.
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.
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.
Connect Miro to 1OO+ of your favorite collaboration tools
“Miro helps solve one of the major gaps in product design: how to manage tasks across product designers whose projects are in different tools.”
Head of Design at DocuSign
Block diagram maker FAQs
Do you have block diagram templates to get started?
Use our 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 with blocks, showcasing their relationships and interactions, whereas 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, or simply share your board link with others.
Other Miro solutions
Miro’s all-in-one diagram maker removes the hassle of switching between diagramming and collaboration tools while helping you check off all the essential steps of your diagramming process.
Visualize, build, and document software systems and processes with a UML diagram. Design and communicate technical plans with a unified language that everyone understands.
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