Best Open Source Diagram Software

Find the latest and top-rated open source diagram software for your business. Compare features, reviews, and prices. Find a perfect match for your business needs.

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Most Popular Software

This listing showcases software based on user recommendations and popularity. It also highlights products from our valued client partnerships.
draw.io

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e!Sankey

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Free Demo
Archbee

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Free Demo
ConceptDraw DIAGRAM v12

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Free Demo

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List of 19 Best Open Source Diagram Software

Showing 1 - 26 of 20 products
#2

Product Description

draw.io is a versatile, security-first diagramming tool for teams, offering seamless integration with popular platforms like Google Drive, OneDrive, and GitHub. Collaborate in real-time without registration, ensuring your data remains private and accessible wherever you choose to store it. Learn more about draw.io

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
API

Recent Review

"This service has been a lifesaver many..." - Sachin Shrestha

#3

Product Description

e!Sankey is a powerful software tool for visualizing material and energy flows. It creates intuitive Sankey diagrams, making it easier to analyze and optimize resource efficiency, energy management, and production processes within your organization. Learn more about e!Sankey

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
API
Free Trial
#4

Product Description

This information is provided by vendor.

Archbee is a powerful documentation tool designed for teams, offering real-time collaboration, customizable templates, and seamless integrations. It enhances productivity by streamlining knowledge sharing, ensuring your team stays aligned and informed with up-to-date, easily accessible information. Learn more about Archbee

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
API
#5

Product Description

This information is provided by vendor.

A versatile diagramming offline program that delivers a full set of drawing tools on both Macintosh and Windows. Format, Order, Align, and Position options allow one to create professional-looking engineering drawings, flowcharts, dashboards, and more diagrams. Learn more about ConceptDraw DIAGRAM v12

This is Open Source Diagram Software

Starting Price: Available on Request

Free Trial
#6

Product Description

MindManager is a brainstorming and planning tool. Its mind map maker helps to improve business productivity by providing the best way to capture, visualize, and apply business information. This mind map software integrates seamlessly with Microsoft Office and is a must-have for any size of organization. Learn more about MindManager

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
Free Trial
#7

Product Description

This information is provided by vendor.

Nevron helps you get industry-driven diagrams with just a few clicks. Its enterprise-grade data visualization features help the end-user represent data in an effective and understandable manner. With a minimal learning curve, it is a ready-to-use platform. Learn more about Nevron

This is Open Source Diagram Software

Starting Price: Available on Request

Free Trial
#8

Product Description

yEd is a versatile and user-friendly diagramming tool that empowers you to create stunning visual representations effortlessly. Whether for personal projects or professional use, yEd simplifies complex data visualization, making your insights clear and impactful. Learn more about yEd

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
API
Free Trial
#9

Product Description

This information is provided by vendor.

ClickCharts is a versatile diagramming software that allows users to create flowcharts, mind maps, and organizational charts with ease. Its intuitive interface and extensive template library make it ideal for visualizing complex processes and brainstorming ideas efficiently. Learn more about ClickCharts

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
API
#10

Product Description

OmniGraffle Pro is a versatile design tool that empowers professionals to create detailed diagrams, prototypes, and visual communications effortlessly. Its intuitive interface and robust features streamline complex projects, enhancing productivity and clarity in visual organization. Learn more about OmniGraffle Pro

This is Open Source Diagram Software

Starting Price: Available on Request

Mobile App
API
Free Trial
#11

Product Description

D3M is a powerful sales and diagramming tool that enhances your digital sales process through real-time collaboration, automation, and seamless integration. Simplify network design, improve communication, and accelerate deal closures with intuitive features tailored for various industries. Learn more about D3M

This is Open Source Diagram Software

Starting Price: $0 Per Month

Mobile App
API
Free Trial
#12

Product Description

Whimsical is a versatile tool for creating flowcharts, wireframes, and mind maps with ease. It enhances team collaboration and streamlines project visualization. Learn more about Whimsical

This is Open Source Diagram Software

Starting Price: $0 Per Editor/Month

Mobile App
API
#13

Product Description

Inkscape is a great open-source graphic design tool for making vectorized versions of sketches. It is a free and powerful graphic design software. It has a wide range of editing tools that help in editing shapes, editing text, adding filters, filling gradients, node editing, and much more. Learn more about Inkscape

This is Open Source Diagram Software

Starting Price: Available on Request

Recent Review

"It's a feature-rich software, capable of professional..." - Bhavya Kumar Garg

#14

Product Description

This information is provided by vendor.

Lucidchart has taken mind map creation to a revolutionary level. It serves as the ultimate tool to make expert flowcharts, mind mapping tools, and other such diagrams. It has a drag-and-drop interface and real-time collaboration capabilities. It allows the publishing of diagrams to the web and sharing them with others through email and generated links. Learn more about Lucidchart

Starting Price: $0 Per Month

Mobile App
API
Free Trial

Recent Review

"The text is grammatically correct and does..." - Basil Aikabeli

#15

Product Description

With SmartDraw's architectural drawing software, designing architecture plans has never been easier. Whether you are a professional designer or a beginner, the ease of use and broad selection of templates and examples help make you instantly productive. Learn more about SmartDraw

Starting Price: $297 Onetime

Mobile App
Free Trial

Recent Review

"SmartDraw has various features that make your..." - Mercy

#16

Product Description

Gliffy is a website wireframe tool for planning, creating, sharing, and editing mockups and wireframes. It seamlessly integrates with Confluence, JIRA, and Google Drive. It has a user-friendly interface and helps you communicate and collaborate better, thus increasing your efficiency. Learn more about Gliffy

Starting Price: $8 Month/Billed Annually

Mobile App
Free Trial
#17

Product Description

This information is provided by vendor.

Creately is an AI-powered visual collaboration platform that automates complex diagramming. Used by teams worldwide, it simplifies workflows through an intuitive infinite canvas, smart templates, and real-time multi-user editing. Learn more about Creately

Starting Price: $0 Per Month

Mobile App
API
Free Trial

Recent Review

"Creately aims to provide powerful diagramming features..." - islam. Pakistan

#18

Product Description

EDraw Max is mind mapping software for innovation and productivity. It is super simple, helping you visualize your ideas in the best possible manner. It is used to make professional flowcharts, company charts, network diagrams, business presentations, etc. Learn more about EDraw Max

Starting Price: Available on Request

Mobile App
Free Trial

Recent Review

"I am amazed by this, and I..." - wikky khan

#19

Product Description

Visual Paradigm is a favorite wireframe tool for many. Using the document generation tool, you can draw wireframes compatible with iPhone, iPad, Android apps, desktop applications, and web pages. It has an intuitive interface and helps you mock-up much more efficiently and effectively. Learn more about Visual Paradigm

Starting Price: $6 Per Month

Mobile App
Free Trial

Recent Review

"Visual Paradigm, particularly its System Modeling component,..." - Prachi Shah

#20

Product Description

This information is provided by vendor.

MyDraw helps you draw better charts, which help you in better planning and a better understanding of your organization. It is used to draw flowcharts, floor plans, UML diagrams, mind maps, and so on. Learn more about MyDraw

Starting Price: $69 One Time

API
Free Trial
Supriya Bajaj
Researched and Written by Supriya Bajaj | Last Updated: August 25, 2026