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Best UML Diagram Tools in December 2022

UML diagram tools are a type of software used for designing, building and maintaining software systems. UML diagrams visually represent an object-oriented design, which helps communicate how systems are structured.

20 Listed services

2,154Analyzed reviews

215Suspicious reviews

Service

Price

Drag-and-Drop Interface

UML Diagram Types

UML Templates

Team Collaboration

Export Formats

1

EdrawMax logo
Truely score heart icon

5.0/5

58 reviews

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$245.00

One-time payment

Structural UML,Behavior UML

Unlimited

Non Real-time

JPEG,PNG,PDF

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2

Cacoo logo
Truely score heart icon

5.0/5

140 reviews

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$5.00

per month, $60.00 billed annually

Structural UML,Activity UML

Unlimited

Real-time

JPEG,PNG,PDF

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3

yEd logo
Truely score heart icon

4.8/5

11 reviews

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Contact company for pricing

Structural UML,Activity UML

Limited

Real-time

JPEG,PNG,PDF,SVG

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4

Creately logo
Truely score heart icon

4.6/5

145 reviews

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$8

per month, $57.60 billed annually

Structural UML,Activity UML

Unlimited

Non Real-time

PNG,PDF

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5

$4.00

per month, $48.00 billed annually

Structural UML,Behavior UML,Activity UML

Limited

Non Real-time

PNG

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6

Moqups logo
Truely score heart icon

4.5/5

78 reviews

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$13.00

per month, $156.00 billed annually

Structural UML,Behavior UML,Activity UML

Unlimited

Real-time

PNG,PDF

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7

$69.00

per license

Structural UML,Behavior UML

Limited

Real-time

JPEG,PNG,PDF

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8

SmartDraw logo
Truely score heart icon

4.2/5

80 reviews

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$5.95

per month, $71.40 billed annually

Structural UML,Activity UML

Unlimited

Non Real-time

PDF

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9

Sketchboard logo
Truely score heart icon

4.1/5

36 reviews

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$7.00

per month, $84.00 billed annually

Structural UML,Behavior UML,Activity UML

Unlimited

Real-time

JPEG,PNG,PDF

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10

UMLet logo
Truely score heart icon

3.8/5

3 reviews

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Free

Activity UML

Limited

Non Real-time

JPEG,PDF

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Best Products

#1

EdrawMax

EdrawMax

Best Overall

58 Reviews analysed

56 Positive

2 Negative

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Key facts

  • Drag-and-Drop Interface

  • UML Diagram Types

    Structural UML, Behavior UML

  • UML Templates

    Unlimited

  • Team Collaboration

    Non Real-time

  • Export Formats

    JPEG, PNG, PDF

Pros

  • Easy to use

  • Very intuitive

  • Many templates to choose from

  • Professional

  • Lots of long time users

See all

Cons

  • Customer support is unresponsive

  • Account setup is hard

See all

#2

Cacoo

140 Reviews analysed

139 Positive

1 Negative

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Key facts

  • UML Diagram Types

    Structural UML, Activity UML

  • UML Templates

    Unlimited

  • Team Collaboration

    Real-time

  • Export Formats

    JPEG, PNG, PDF

Pros

  • Easy to use

  • Free version is great

  • Very intuitive

  • Lots of long time users

  • Easy sharing feature

See all

Cons

  • Doesn't work

See all

In their reviews, users have mentioned that Cacoo is easy to use and very intuitive. Lots of long time users have said that there are many templates to choose from, and the design is appealing. The easy sharing feature is also a great benefit, as users can share their work easily with others. The free version is also praised by many, as it offers great value for its price.

#3

yEd

11 Reviews analysed

9 Positive

2 Negative

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Key facts

  • UML Diagram Types

    Structural UML, Activity UML

  • UML Templates

    Limited

  • Team Collaboration

    Real-time

  • Export Formats

    JPEG, PNG, PDF, SVG

Pros

  • Free version is great

  • Easy to use

  • Does not have to pay to use

  • Collaboration is easy

  • Lots of long time users

See all

Cons

  • Account setup is hard

  • Disappointing free version

See all

#4

Creately

145 Reviews analysed

129 Positive

16 Negative

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Key facts

  • UML Diagram Types

    Structural UML, Activity UML

  • UML Templates

    Unlimited

  • Team Collaboration

    Non Real-time

  • Export Formats

    PNG, PDF

Pros

  • Free version is great

  • Easy to use

  • Many templates to choose from

  • Useful for students

  • Very intuitive

See all

Cons

  • Disappointing free version

  • Customer service is bad

  • Bad accessibility

  • Don't waste your time

  • Difficult to understand

See all

In their reviews, users have mentioned that one of the pros of Creately is that it offers a free version which is great. Another pro is that there are many templates to choose from. Additionally, users have found the tool to be useful for students as it is very intuitive and easy to use. The trial version is also great, according to reviewers.

Key facts

  • Drag-and-Drop Interface

  • UML Diagram Types

    Structural UML, Behavior UML, Activity UML

  • UML Templates

    Limited

  • Team Collaboration

    Non Real-time

  • Export Formats

    PNG

Pros

  • Instructions are clear

  • Easy to understand

  • Good value for money

  • Really appreciated by its users

  • Easy to install

See all

Cons

  • Difficult to understand

  • Hard to navigate

  • Data protection concerns

  • Don't waste your time

  • Inaccurate

See all

In their reviews, users have mentioned that the instructions for Visual Paradigm are clear and concise. The tool is also good value for money, and easy to install. However, some users have found it difficult to navigate the interface. Additionally, while some people find the tool very useful, others find it difficult to understand.

#6

Moqups

78 Reviews analysed

66 Positive

12 Negative

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Key facts

  • Drag-and-Drop Interface

  • UML Diagram Types

    Structural UML, Behavior UML, Activity UML

  • UML Templates

    Unlimited

  • Team Collaboration

    Real-time

  • Export Formats

    PNG, PDF

Pros

  • Nothing to dislike

  • Easy sharing feature

  • Free version is great

  • Easy to use

  • Better than the rest

See all

Cons

  • Bad accessibility

  • Update issues

  • Not user friendly

  • There are better alternatives

  • Clunky

See all

Key facts

  • Drag-and-Drop Interface

  • UML Diagram Types

    Structural UML, Behavior UML

  • UML Templates

    Limited

  • Team Collaboration

    Real-time

  • Export Formats

    JPEG, PNG, PDF

Pros

  • User friendly

  • Lots of long time users

  • Works perfectly

  • Effortless

  • Great for small business

See all

#8

SmartDraw

80 Reviews analysed

62 Positive

18 Negative

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Key facts

  • UML Diagram Types

    Structural UML, Activity UML

  • UML Templates

    Unlimited

  • Team Collaboration

    Non Real-time

  • Export Formats

    PDF

Pros

  • Lots of long time users

  • Will use it again

  • Easy to use

  • Great for designers and engineers

  • Many templates to choose from

See all

Cons

  • Don't waste your time

  • Latest update is not great

  • Too expensive

  • Bad user experience

  • Data loss

See all

Key facts

  • UML Diagram Types

    Structural UML, Behavior UML, Activity UML

  • UML Templates

    Unlimited

  • Team Collaboration

    Real-time

  • Export Formats

    JPEG, PNG, PDF

Pros

  • Really appreciated by its users

  • Free version is great

  • Professional

  • Really fun

  • Don't mind negative reviews

See all

Cons

  • App permission problems

  • Clunky

  • Data loss

  • Doesn't work

  • Disappointing features

See all

Key facts

  • UML Diagram Types

    Activity UML

  • UML Templates

    Limited

  • Team Collaboration

    Non Real-time

  • Export Formats

    JPEG, PDF

Pros

  • Free version is great

  • Pleased with experience

  • Make appointments easily

See all

Most Viewed Comparisons

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Truely score heart icon

5.0/5

140 reviews

VS

Truely score heart icon

4.8/5

11 reviews

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Truely score heart icon

5.0/5

140 reviews

VS

Truely score heart icon

4.6/5

145 reviews

Compare
Truely score heart icon

4.8/5

11 reviews

VS

Truely score heart icon

4.6/5

145 reviews

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Frequently Asked Questions

The best UML Diagram Tool is EdrawMax. EdrawMax has been ranking number 1 for the last 127 days.

UML diagram tools provide a medium where users can develop and visualize their class models by automatically generating common diagrams in the UML.

This tool is primarily meant for the conceptual and architectural design phase of a project. It is one method to express and visualize what a system looks like, helping your audience understand the structure and evolution of what you’re working on so that all collaborators can be on the same page.

Drag-and-Drop Interface

The drag-and-drop interface feature in a UML diagram tool makes files accessible from the context menu of a design element. You can drag an object from another schema and drop it into the diagram pane or into the drawing area.


Multiple UML Diagram Types

Multiple UML diagram types contain elements for showing a component hierarchy, as well as dependencies between those components. It can illustrate the dynamic relationship between different classes, which are ranked by considerations like sequence, dependency and precedence.


UML Templates

UML templates allow users to generate multiple diagrams with one basic outline. This is a more efficient way to create layouts and diagram representations by sharing common content, than reinventing the wheel every time. This supports programmers and engineers needing to create new classes, objects and conceptual frameworks for programs and systems.

Sequence UML Diagram Tool

A UML sequence diagram tool produces diagrams illustrating the sequence in which tasks will be completed, their deadlines and their locations. It includes diagram creators, diagram editors and technical documentation generators. It also clearly presents all sequential task dependencies.


Class UML Diagram Tool

Class UML diagram tools design object-oriented systems. They are ideal for designing diagrams of classes and class relationships, displaying class objects and attributes, or outlining interfaces between information systems and their environment. Class diagrams depict abstractions like classes, interfaces, traits, enumerations and objects.


Use Case UML Diagram Tool

Use case diagram tools typically are used in the software design process to specify what the software does. Usually it’s one of the first diagrams created in the process and is sometimes called a scope diagram. A use-case diagram visualizes functional requirements which arise while using a system, application or device.

Software Developer

Software developers can use these to show their work to their team before it actually works. UML diagrams visually depict how a software functions, which mitigates miscommunication by showing the steps, structure and data flow as clearly as possible to your software to others who aren’t as involved as they are.


Project Manager

Project managers appreciate this tool because it visualizes dependencies between different project components.