Online UML diagram maker

Make UML diagrams effortlessly, draw inspiration from a vast collection of templates, all within an intuitively user-friendly interface – for free.

Free UML diagram templates from EdrawMax

Class Diagram for Order System
Sequence Diagram for Loan Application
Activity Diagram
Use Case Diagram for Online Shopping
Deployment Diagram for Online Shopping
Class Diagram for Airport Operation
Explore More Templates

Why Use EdrawMax UML Diagram Maker?

Rich templates, icons, symbols

EdrawMax has tons of templates, icons, and symbols available. Find a perfect match to your task needs. All of them are easily customizable for your UML diagrams.

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Customize your diagram with ease

Adding symbols is just dragging and dropping into the canvas. Plus, each diagram has its separate library for symbols. So, save time, choose UML Diagram symbols, and narrow your search for the correct symbol.

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Sync work in a unified workspace

Always keep in touch with your team through EdrawMax cloud services. Collaborate on lengthy projects by saving and sharing files. You can utilize the sharing permission feature to allow specific access to distinguished individuals.

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Export your diagram in various formats

You can export your files in many formats, including Visio, PDF, JPG, PNG, and SVG. This enables you to easily share your work with team members, even if they don't have EdrawMax.

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What our users say

Eric Dalton, Senior Backend Engineer
I’ve spent way too many hours wrestling with Visio just to get a simple class diagram looking halfway decent. It’s usually a total headache. Switching to the Wondershare tool was honestly a breath of fresh air. The auto-snapping is a godsend—it actually aligns things where you want them without you having to pixel-push for twenty minutes. It’s dead simple to use, and honestly, it’s a no-brainer if you’re tired of bloated enterprise software that feels like it’s stuck in 2005.
Elliot Ramsey, Solutions Architect
I was tasked with mapping out a right mess of a legacy system last month and was dreading the documentation side of things. I gave this a go and I’m well chuffed with the results. The sheer amount of UML templates they’ve got is spot on—didn’t have to build a single component from scratch. It’s saved me a massive amount of faffing about during the design phase. If you need to churn out professional-looking sequence diagrams without the usual grief, this is definitely worth a shout.
Audrey Palmer, Junior Web Developer
I’m fairly new to the game, and honestly, UML used to look like a different language to me. This tool made it a piece of cake to get my head around it. The interface is super intuitive—none of that confusing jargon everywhere or hidden menus. It’s an absolute lifesaver when I’m trying to document my personal projects for my portfolio. Plus, it doesn’t cost an arm and a leg, which is a massive plus when you’re just starting out. Cheers for making it so straightforward!

FAQs about UML diagram makers

  • UML stands for Unified Modeling Language, a standardized modeling language used to visualize, specify, and document software systems. It provides a common set of symbols and notations that help developers, architects, and stakeholders communicate complex system designs clearly. By using UML, teams can simplify the architectural design process before coding begins.
  • UML diagrams are divided into two primary categories: Structural and Behavioral. Structural diagrams represent the static aspects of a system, such as classes and objects. Behavioral diagrams describe the dynamic aspects, showing how the system functions and how objects interact over time. Both types are essential for a complete overview.
  • A Class Diagram is a structural diagram that describes the internal structure of a system by showing its classes, attributes, operations, and relationships between objects. It acts as a blueprint for the system's data and functionality, helping developers understand how different components connect and interact in a static environment.
  • Structural diagrams focus on what the system is made of, capturing its static elements like classes, components, and packages. In contrast, behavioral diagrams focus on what the system does, illustrating how it reacts to inputs and how internal elements interact over time. Together, they provide a comprehensive view of design.

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