20 Best Diagramming Software for Free in February 2025

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List of the Best Diagramming Software For Free as of February 2025

9.8

Spot Score

Lucidchart

Collaboration made simple for your organization.

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4.2

(356)

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Product Description

Lucidchart is the diagramming tool trusted by thousands of organizations and millions of users. This simple, intuitive tool allows everyone in the organization to arrange information quickly and easily. Lucidchart is used by teams throughout the world to boost collaboration, increase ...

Pricing

Free Trial available, Try Now

Starts from $0, also offers free forever plan

9.5

Spot Score

Creately

Unleash your creativity with seamless flowcharting.

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4.4

(645)

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Product Description

Create highly-detailed and professional flowcharts, process maps, activity diagrams and more with Creately. This diagramming software helps in easy creation of plans, ideas, and knowledge using a proven flowcharting method. The easy, intuitive way to create visual project documentation and ...

Pricing

Starts from $4/Month when Billed Yearly, also offers free forever plan

9.2

Spot Score

Gliffy

Bring your diagrams to life with collaboration tools.

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4.1

(123)

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Product Description

Gliffy is web-based diagramming software that allows users to bring diagrams to life. Upload and share diagrams, import documents, add shapes, and drag and drop text for a meaningful collaboration experience. Stay on track with tools for managing documents, alerts for due dates, updates about ...

Pricing

Free Trial available, Try Now

Starts from $8/Month when Billed Yearly

9.1

Spot Score

Cacoo

Streamline visual communication with effortless diagrams.

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4.5

(213)

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Product Description

Cacoo is user-friendly diagramming software for knowledge workers and designers. It helps people to work together, communicate clearly and build shared understanding. Cacoo lets user easily express thoughts and ideas and present them in the best possible light by making them easier to ...

Pricing

Free Trial available, Try Now

Starts from $5/User/Month when Billed Yearly, also offers free forever plan

8.9

Spot Score

EDraw Max

Effortlessly create professional flowcharts and diagrams.

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4.4

(57)

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Product Description

EDraw Max combines the simplicity of a flowcharting and basic drawing program that lets anyone create high-quality professional looking flowcharts and diagrams. Simple flowchart and diagramming tools help quickly create professional looking diagrams. Perfect for business and technical ...

Pricing

Free Trial available, Try Now

Starts from $99/Year

8.9

Spot Score

Microsoft Visio

Visualize your ideas with precision and ease.

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4.3

(215)

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Product Description

Visio is a diagramming software for visually conveying information. Use it to create flowcharts, organizational charts, or detailed systems diagrams—even mind maps and other task-oriented graphic organizers. Visio also integrates with other tools used in the office and comes with a rich library ...

Pricing

Free Trial available, Try Now

Starts from $5/User/Month

8.7

Spot Score

Zen Flowchart

Streamline your ideas with Zen Flowchart.

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Product Description

Zen Flowchart is diagramming software that helps to plan and create flowcharts, organizational charts, workflows, life cycles, and other kinds of diagrams. Quickly and easily produce professional-looking visual reports, charts, or data analysis with logical connections between ideas or ...

Pricing

Starts from $5.90/Month, also offers free forever plan

8.6

Spot Score

QuickDBD

Effortlessly design powerful database structures with QuickDBD.

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5.0

(3)

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Product Description

Complete DSDB-based diagramming software for professionals interested in Data Modeling and database design. QuickDBD is a powerful, full-featured tool for diagramming of Database structures. Easy to use with a few clicks of the mouse, QuickDBD enables user to create rich database structure ...

Pricing

Starts from $7.90/Month when Billed Yearly, also offers free forever plan

8.6

Spot Score

FlowMapp

Visualize connections, optimize operations.

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4.7

(64)

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Product Description

FlowMapp Diagramming Software is a diagramming application that teaches the foundational ideas of systems thinking and organizational flow by connecting and visualizing the people, tasks, data, materials, and energy that move through a business or social system. FlowMapp gives users the power ...

Pricing

Free Trial available, Try Now

Starts from $8.25/Month when Billed Yearly, also offers free forever plan

8.6

Spot Score

Plectica

Complex designs made simple.

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Product Description

Plectica is software for creating professional, polished technical diagrams. It is used in the aerospace, manufacturing, and other industries to create richly-annotated drawings which clearly communicate the design of complex products, industrial processes and systems, and other technical ...

Pricing

Starts from $3/Month when Billed Yearly, also offers free forever plan

8.5

Spot Score

Nakisa Hanelly

Streamline information visualization with advanced diagramming.

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4.6

(1)

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Product Description

Nakisa's Diagramming Software provides for the visual presentation of complex information. It allows user to present it in an intuitive, graphical way that accurately depicts both process and structure. To allow organization of information, Nakisa offers a wide variety of different diagram ...

Pricing

Free Trial available, Try Now

Starts from $1,000/Month

8.5

Spot Score

Textografo

Visualize your ideas with ease and speed.

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4.0

(2)

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Product Description

Textografo is a low-cost, flexible, diagramming software that makes it easy to create high-quality diagrams in minutes. Create entity relationship diagrams, class diagrams, activity diagrams, mind maps, concept maps, and more. It is also an answer for anyone who wants to learn to diagram ...

Pricing

Free Trial available, Try Now

Starts from $4/Month when Billed Yearly

8.5

Spot Score

diagrams.net

Visualize your ideas with ease.

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3.6

Add to compare

Product Description

diagrams.net is a diagramming software, providing a wide range of diagram types suitable for any project from document and flowcharts, to UML diagrams and website wireframes. It provides a WYSIWYG interface so user can draw diagrams using mouse or touchscreen for Mac, Windows, Linux and iPad. ...

Pricing

8.4

Spot Score

UpDiagram

Effortlessly create stunning diagrams with UpDiagram.

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4.5

(3)

Add to compare

Product Description

UpDiagram is an easy-to-use diagramming software that allows user to create, edit and print flowcharts and diagrams with minimum time & effort. It is an affordable, neat & complete diagramming package, which allows to generate various types of diagrams including organizational charts, logic ...

Pricing

Starts from $5/User/Month, also offers free forever plan

8.4

Spot Score

Gleek

Transform your data into dynamic charts effortlessly.

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Product Description

Gleek is a diagramming tool that allows user to capture data and relationships quickly on the Windows desktop, turning existing charts upside down. Gleek draws the powerful component-based charts, the forced layout charts and includes new, unique charts such as Candlestick chart or Bullet ...

Pricing

Starts from $9.95/Month, also offers free forever plan

8.4

Spot Score

Terrastruct

Effortless diagramming for construction professionals.

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Product Description

Terrastruct is Diagramming Software for Windows. It enables users to draw with the mouse and insert and edit text quickly and easily. Terrastruct has been developed with the primary intention to support diagramming activity in the conceptual design, early detailing, pre-production and ...

Pricing

Free Trial available, Try Now

Starts from $4.99/Month, also offers free forever plan

8.3

Spot Score

Custellence

Streamline Your Legal Practice with Ease.

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4.2

(6)

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Product Description

Custellence is easy-to-use and affordable legal practice management software created by attorneys for attorneys. Its mission is to help small and solo practitioners improve their work flow and increase their revenue by offering programs that are practical and easy to use. Custellence provides a ...

Pricing

Starts from $25/User/Month when Billed Yearly, also offers free forever plan

8.3

Spot Score

CardBoard

Collaborate, create, and share with ease.

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3.9

(15)

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Product Description

CardBoard is an incredible collaboration software that allows teams to effortlessly create and share user story maps. It has become a leader in the industry due to its exceptional story mapping and collaboration capabilities. Plus, it simplify online meetings & events, because you can invite ...

Pricing

Free Trial available

Starts from $8.50/User/Month when Billed Yearly

8.3

Spot Score

Mermaid Chart

Transforming data into impactful visuals with ease.

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Product Description

Introducing Mermaid Chart, the ultimate visualization solution that goes beyond typical charts and graphs. With its tagline as "A Complete Visualization Tool," Mermaid Chart offers a seamless way to map out vital information streams for success without the clutter of lengthy text and cumbersome ...

Pricing

Free Trial available, Try Now

Starts from $80.00/user / year when Billed Yearly, also offers free forever plan

8.2

Spot Score

ProcessOn

Streamline your planning with dynamic diagramming.

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4.8

(20)

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Product Description

ProcessOn is an intuitive, high-performance diagramming software that provides users with the flexibility to create diagrams using a wide range of visual tools and styles. Effortlessly navigate, link and animate ideas and concepts in all stages of planning processes. Create one, two or three ...

Pricing

Starts from $58.80/Year, also offers free forever plan

Best Diagramming Software For Free

Lucidchart

Collaboration made simple for your organization.

Lucidchart is the diagramming tool trusted by thousands of organizations and millions of users. This simple, intuitive tool allows everyone in the organization to arrange information quickly and easily. Lucidchart is used by teams throughout the world to boost collaboration, increase ...

Creately

Unleash your creativity with seamless flowcharting.

Create highly-detailed and professional flowcharts, process maps, activity diagrams and more with Creately. This diagramming software helps in easy creation of plans, ideas, and knowledge using a proven flowcharting method. The easy, intuitive way to create visual project documentation and ...

Gliffy

Bring your diagrams to life with collaboration tools.

Gliffy is web-based diagramming software that allows users to bring diagrams to life. Upload and share diagrams, import documents, add shapes, and drag and drop text for a meaningful collaboration experience. Stay on track with tools for managing documents, alerts for due dates, updates about ...

Cacoo

Streamline visual communication with effortless diagrams.

Cacoo is user-friendly diagramming software for knowledge workers and designers. It helps people to work together, communicate clearly and build shared understanding. Cacoo lets user easily express thoughts and ideas and present them in the best possible light by making them easier to ...

EDraw Max

Effortlessly create professional flowcharts and diagrams.

EDraw Max combines the simplicity of a flowcharting and basic drawing program that lets anyone create high-quality professional looking flowcharts and diagrams. Simple flowchart and diagramming tools help quickly create professional looking diagrams. Perfect for business and technical ...

Microsoft Visio

Visualize your ideas with precision and ease.

Zen Flowchart

Streamline your ideas with Zen Flowchart.

Zen Flowchart is diagramming software that helps to plan and create flowcharts, organizational charts, workflows, life cycles, and other kinds of diagrams. Quickly and easily produce professional-looking visual reports, charts, or data analysis with logical connections between ideas or ...

QuickDBD

Effortlessly design powerful database structures with QuickDBD.

Complete DSDB-based diagramming software for professionals interested in Data Modeling and database design. QuickDBD is a powerful, full-featured tool for diagramming of Database structures. Easy to use with a few clicks of the mouse, QuickDBD enables user to create rich database structure ...

FlowMapp

Visualize connections, optimize operations.

FlowMapp Diagramming Software is a diagramming application that teaches the foundational ideas of systems thinking and organizational flow by connecting and visualizing the people, tasks, data, materials, and energy that move through a business or social system. FlowMapp gives users the power ...

Plectica

Complex designs made simple.

Plectica is software for creating professional, polished technical diagrams. It is used in the aerospace, manufacturing, and other industries to create richly-annotated drawings which clearly communicate the design of complex products, industrial processes and systems, and other technical ...

Nakisa Hanelly

Streamline information visualization with advanced diagramming.

Nakisa's Diagramming Software provides for the visual presentation of complex information. It allows user to present it in an intuitive, graphical way that accurately depicts both process and structure. To allow organization of information, Nakisa offers a wide variety of different diagram ...

Textografo

Visualize your ideas with ease and speed.

Textografo is a low-cost, flexible, diagramming software that makes it easy to create high-quality diagrams in minutes. Create entity relationship diagrams, class diagrams, activity diagrams, mind maps, concept maps, and more. It is also an answer for anyone who wants to learn to diagram ...

diagrams.net

Visualize your ideas with ease.

diagrams.net is a diagramming software, providing a wide range of diagram types suitable for any project from document and flowcharts, to UML diagrams and website wireframes. It provides a WYSIWYG interface so user can draw diagrams using mouse or touchscreen for Mac, Windows, Linux and iPad. ...

UpDiagram

Effortlessly create stunning diagrams with UpDiagram.

UpDiagram is an easy-to-use diagramming software that allows user to create, edit and print flowcharts and diagrams with minimum time & effort. It is an affordable, neat & complete diagramming package, which allows to generate various types of diagrams including organizational charts, logic ...

Gleek

Transform your data into dynamic charts effortlessly.

Gleek is a diagramming tool that allows user to capture data and relationships quickly on the Windows desktop, turning existing charts upside down. Gleek draws the powerful component-based charts, the forced layout charts and includes new, unique charts such as Candlestick chart or Bullet ...

Terrastruct

Effortless diagramming for construction professionals.

Terrastruct is Diagramming Software for Windows. It enables users to draw with the mouse and insert and edit text quickly and easily. Terrastruct has been developed with the primary intention to support diagramming activity in the conceptual design, early detailing, pre-production and ...

Custellence

Streamline Your Legal Practice with Ease.

Custellence is easy-to-use and affordable legal practice management software created by attorneys for attorneys. Its mission is to help small and solo practitioners improve their work flow and increase their revenue by offering programs that are practical and easy to use. Custellence provides a ...

CardBoard

Collaborate, create, and share with ease.

CardBoard is an incredible collaboration software that allows teams to effortlessly create and share user story maps. It has become a leader in the industry due to its exceptional story mapping and collaboration capabilities. Plus, it simplify online meetings & events, because you can invite ...

Mermaid Chart

Transforming data into impactful visuals with ease.

Introducing Mermaid Chart, the ultimate visualization solution that goes beyond typical charts and graphs. With its tagline as "A Complete Visualization Tool," Mermaid Chart offers a seamless way to map out vital information streams for success without the clutter of lengthy text and cumbersome ...

ProcessOn

Streamline your planning with dynamic diagramming.

ProcessOn is an intuitive, high-performance diagramming software that provides users with the flexibility to create diagrams using a wide range of visual tools and styles. Effortlessly navigate, link and animate ideas and concepts in all stages of planning processes. Create one, two or three ...

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