# Best Diagramming Software - Page 9

## How Many Diagramming Software Products Does G2 Track?

**Total Products under this Category:** 136

### Category Stats (Aug 2026)

- **Average Rating:** 4.4/5 The average rating of products in this category, based on all submitted ratings
- **Top Trending Product:** Cvent Event Marketing & Management (+0.54%) - Among all products in this category, Cvent Event Marketing & Management recorded the largest rating increase compared to last month

_Last updated: August 04, 2026_

## How Does G2 Rank Diagramming Software Products?

**Why You Can Trust G2's Software Rankings:**

- 30 Analysts and Data Experts
- 34,100+ Authentic Reviews
- 136+ Products
- Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

## G2 Grid® for Diagramming Software
 ![G2 Grid® for Diagramming Software plotting products by satisfaction and market presence](https://www.g2.com/categories/diagramming/grids.png?focus%5B%5D=42445&focus%5B%5D=2887&focus%5B%5D=17137&focus%5B%5D=1215793&focus%5B%5D=737&focus%5B%5D=89809&focus%5B%5D=6782&focus%5B%5D=17725)

Highlighted products: Miro, Lucid Visual Collaboration Suite, Visio, FigJam, Cvent Event Marketing & Management, Wondershare EdrawMax, Mural, and SmartDraw.

Underlying data: [Grid® JSON](https://www.g2.com/categories/diagramming/grids.json?focus%5B%5D=miro&focus%5B%5D=lucid-software-inc-lucid-visual-collaboration-suite&focus%5B%5D=visio&focus%5B%5D=fig-jam&focus%5B%5D=cvent-event-marketing-management&focus%5B%5D=wondershare-edrawmax&focus%5B%5D=mural&focus%5B%5D=smartdraw)

### [Modeldraw](https://www.g2.com/products/modeldraw/reviews)

Modeldraw is a comprehensive diagramming solution that's completely free for teams, offering a full suite of tools for professional communication. Create specialized diagrams for software development, business planning, and Agile workflows, including UML diagrams, system architecture maps, flowcharts, mind maps, and user story maps. With powerful real-time collaboration and an intuitive interface, Modeldraw allows unlimited team members to work together with no credit card required.

#### Who Is the Company Behind Modeldraw?

- **Seller:** [Atlantean IT](https://www.g2.com/sellers/atlantean-it)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ebc503ba5fa50c5c78cb922aadfe6cb8cf674ffdbb0d3fe0370dcd05154251fa&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F106171276%2F&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Monodraw](https://www.g2.com/products/monodraw/reviews)

Powerful ASCII art editor designed for the Mac

#### Who Is the Company Behind Monodraw?

- **Seller:** [Monodraw](https://www.g2.com/sellers/monodraw)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Nevron Open Vision for .NET (NOV)](https://www.g2.com/products/nevron-open-vision-for-net-nov/reviews)

Nevron Open Vision for .NET is a suite of advanced UI components that helps you develop feature-rich Web (Blazor WebAssembly) and Desktop (WinForms, WPF, Xamarin.Mac) applications from a single code base. The suite includes advanced components for all major User Interface categories - Chart, Diagram, Grid, Rich Text Editor, Scheduler, and a complete set of 70+ Widgets (Ribbon, Dockable Toolbars, Layout Panels, Buttons, CheckBox, TextBox etc). The main features of Nevron Open Vision for .NET are: The only suite of components that works in Blazor WebAssembly, WinForms, WPF, and Xamarin.Mac projects from a single code base. Provides your users with identical experience in Web and Desktop (Windows and macOS) environments. Includes a complete set of User Interface components: 70+ Widgets, Chart, Diagram, Grid, Rich Text Editor, Scheduler, Gauge, Barcode etc. All components are based on an extensible Document Object Model (DOM), with support for styling, events, serialization, history, and others. All components in the suite can be integrated into each other - for example, you can embed a Chart inside a Diagram or a Rich Text Document. All components are vector-based, printable, hi-res (4K monitor) ready, and best of all - hardware accelerated where possible.

**Average Rating:** 3.5/5.0

**Total Reviews:** 1

#### How Do G2 Users Rate Nevron Open Vision for .NET (NOV)?

- **Quality of Support:** 8.3/10 (Category avg: 8.7/10)
- **Ease of Use:** 6.7/10 (Category avg: 8.7/10)

#### Who Is the Company Behind Nevron Open Vision for .NET (NOV)?

- **Seller:** [Nevron Software](https://www.g2.com/sellers/nevron-software)
- **Year Founded:** 1998
- **HQ Location:** Wilmington, DE
- **Twitter:** @NevronSoftware  
228 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=dcf00cb78b2cb507e7c6781c9bb62bbf83ae39ab3559190f7b8cae96f839e8d2&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F130361%2F&secure%5Burl_type%5D=linkedin_company_website)  
14 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

### [PRD Chart](https://www.g2.com/products/prd-chart/reviews)

PRD Chart is an AI-powered web app that converts Product Requirements Documents into clear visual diagrams. Paste a PRD or upload a .docx file, and the tool instantly generates editable Mermaid sequence diagrams, flowcharts, and user journey maps. Users can refine the output in a built-in Monaco code editor, switch between six color themes, and export to PNG. It runs on a credit-based system with a generous free tier, making it ideal for PMs, designers, and developers who need to communicate product behavior fast.

#### Who Is the Company Behind PRD Chart?

- **Seller:** [PRD Chart](https://www.g2.com/sellers/prd-chart)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Querychart](https://www.g2.com/products/querychart/reviews)

Querychart is a free web application enabling users to effortlessly generate flowcharts using data, eliminating the need for manual drawing. With a user experience akin to Excel, users input data directly into a spreadsheet to create charts. This streamlined process not only enhances pace but also ensures consistency in visualizations.

#### Who Is the Company Behind Querychart?

- **Seller:** [Querychart](https://www.g2.com/sellers/querychart)
- **Year Founded:** 2022
- **HQ Location:** Odense, DK
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=bc5afa87996d15afda8c3b9fdf9f728cc7b0e03a118d4ff0e5251e3c686d80aa&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fquerychart%2F&secure%5Burl_type%5D=linkedin_company_website)

### [Rarchy](https://www.g2.com/products/rarchy/reviews)

Rarchy offers a suite of website planning tools, including visual sitemaps and user flows, designed for agencies and teams. The core product is our free visual sitemap editor, which allows you to create a sitemap from scratch or import your existing website pages via our [visual sitemap generator](https://rarchy.com/sitemaps/visual-sitemap-generator). You're then able to view your website in five different visual formats, use the drag-and-drop interface to make changes, and auto-capture screenshots of your current page designs. Your sitemap can be exported to XML (ready to upload to search engines), CSV, or PDF format. Rarchy is ideal for teams, allowing you to collaborate, revise, and communicate changes to your website in one place.

#### Who Is the Company Behind Rarchy?

- **Seller:** [Rarchy Pty LTD](https://www.g2.com/sellers/rarchy-pty-ltd)
- **HQ Location:** Sydney, AU
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=02628161cc34f515727c8cf2c990d2ee1664979751d04339f5dce02abea4cd50&secure%5Burl%5D=http%3A%2F%2Fwww.linkedin.com%2Fcompany%2Frarchy&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Revision](https://www.g2.com/products/revision/reviews)

Revision is a purpose-built web tool designed for creating, sharing, and maintaining system and software architecture diagrams. It emphasizes standardized documentation through a structured model, allowing teams to build, navigate, and update hierarchical design diagrams efficiently. This structure supports the C4 model, enabling users to zoom between abstraction levels and link components across diagrams—making it easier for both technical and non-technical stakeholders to understand complex architectures. Highlighted features include reusable components, live image exports (always up‑to‑date), over 100 included icons, and full support for sharing and access control—all without extra reader licensing costs Revision combines the speed and ease of a general-purpose drawing tool with the structure and reuse features of an enterprise architecture tool.

#### Who Is the Company Behind Revision?

- **Seller:** [Revision](https://www.g2.com/sellers/revision)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ed27654579956e5310c433815832a7a822d7196e37944546a208d52a42487281&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Frevision-app%2F&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Sankey Flow Show](https://www.g2.com/products/sankey-flow-show/reviews)

Sankey Flow Show is a modern webapp for drawing flow diagrams and Sankey diagrams directly in your browser.

#### Who Is the Company Behind Sankey Flow Show?

- **Seller:** [Sankeyflowshow](https://www.g2.com/sellers/sankeyflowshow)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Simulaction](https://www.g2.com/products/simulaction/reviews)

Simulaction is a browser-based animated diagram and flowchart maker for software teams. Create diagrams visually or import Mermaid and D2, then animate requests, decisions, state changes, camera movement, and data flow along connections. Present architecture, processes, incidents, and onboarding scenarios as guided step-by-step walkthroughs. Free accounts can save, present, and export PNG or SVG diagrams; Pro adds video and GIF export plus hosted, revocable share links.

#### Who Is the Company Behind Simulaction?

- **Seller:** [Simulaction](https://www.g2.com/sellers/simulaction)
- **HQ Location:** N/A
- **LinkedIn® Page:** [linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=2a0b29ee8fb4685be0ea28c7bb607861f5c2117b4b625ee85001b7e18e257daa&secure%5Burl%5D=https%3A%2F%2Flinkedin.com%2Fcompany%2Fsimulaction%2F&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [StructureFlow](https://www.g2.com/products/structureflow/reviews)

Effortless visualization for business professionals. Transform the way you create structure charts, step plans, timelines, and process maps to help you navigate complexity with confidence and precision.

#### Who Is the Company Behind StructureFlow?

- **Seller:** [StructureFlow](https://www.g2.com/sellers/structureflow)
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=31713ee362eea77ce1c13c63d487c622587f196c5e86eb82ec647440d00d91a1&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fstructureflow&secure%5Burl_type%5D=linkedin_company_website)

### [Sysonaut Draw](https://www.g2.com/products/sysonaut-draw/reviews)

Sysonaut is a cloud and data center architecture diagramming tool built for Solution Architects, Cloud Architects, Presales Engineers, Consultants, and Enterprise IT teams. Create professional architecture diagrams using a consistent visual language across AWS, Azure, Google Cloud, Kubernetes, VMware, networking, and on-premises infrastructure. Build reusable custom components, standardize diagrams across projects, and produce presentation-ready visuals for documentation, workshops, proposals, and technical design. Unlike infrastructure discovery tools, Sysonaut is designed for human-created diagrams that communicate architecture clearly to customers, stakeholders, and engineering teams. Sysonaut supports local-first workflows, allowing sensitive diagrams to remain on your device while still offering cloud synchronization when needed.

#### Who Is the Company Behind Sysonaut Draw?

- **Seller:** [Sysonaut](https://www.g2.com/sellers/sysonaut)
- **HQ Location:** N/A
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Timblee](https://www.g2.com/products/timblee/reviews)

Timblees user flow diagrams (in beta) and visual sitemaps (not in beta) will help you design better user experience from day one of your web or mobile project long before you create a single design, or start development.

#### Who Is the Company Behind Timblee?

- **Seller:** [Timblee](https://www.g2.com/sellers/timblee)
- **Year Founded:** 2015
- **HQ Location:** Sydney, AU
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e495c0168c75eb9aa9915a02ead720e550a4086b22bb5c75527790e57c574534&secure%5Burl%5D=http%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftimblee&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [ToDiagram](https://www.g2.com/products/todiagram/reviews)

ToDiagram is a data visualization tool and an editor that transforms complex data formats like JSON, CSV, YAML, and XML into interactive, easy-to-navigate diagrams in seconds. It offers users an intuitive way to explore, edit, and understand their data visually, without getting lost in raw code.

#### Who Is the Company Behind ToDiagram?

- **Seller:** [ToDiagram](https://www.g2.com/sellers/todiagram-b2b147e4-1afa-4128-8635-397eb233727e)
- **Year Founded:** 2022
- **HQ Location:** Istanbul, TR
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e620642fb3bbb9bc0b0e767a76f970f8b2d68640f4cbb56971911645bbfb17c0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fjsoncrack&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

### [Vecta](https://www.g2.com/products/vecta/reviews)

Vecta is a web-based collaborative diagramming tool.

#### Who Is the Company Behind Vecta?

- **Seller:** [Vecta](https://www.g2.com/sellers/vecta)
- **HQ Location:** Sheffield, England
- **Twitter:** @Vectaio  
137 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website)  
1 employees on LinkedIn®

#### Who Uses This Product?

- **Company Size:** 100% Small

#### What Are G2 Users Discussing About Vecta?

- [What is Vecta used for?](https://www.g2.com/discussions/what-is-vecta-used-for)

### [Visible Analyst](https://www.g2.com/products/visible-analyst/reviews)

Whether you are designing e-business applications, developing a data warehouse, or integrating your legacy systems with new enterprise applications; Visible Analyst has all the power you need. Visible Analyst enables true enterprise application engineering by storing and documenting data, processes, business requirements, and objects that can be shared by application developers throughout an organization. The result: you can more easily design and control enterprise software for quality, consistency, and reusability in business applications through the managed sharing of meta-data. All editions support concurrent multi-user access. Learn more about Visible Analyst at: https://visiblesystemscorp.com/Products/Analyst/index.htm

#### Who Is the Company Behind Visible Analyst?

- **Seller:** [VISIBLE Systems](https://www.g2.com/sellers/visible-systems)
- **Year Founded:** 2019
- **HQ Location:** Boston, US
- **Twitter:** @VISIBLECorp  
58 Twitter followers
- **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=647259f5e1377fe408458791243f8e95d03908b534640a0e28a7656833d12e32&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fvisible-systems-corporation&secure%5Burl_type%5D=linkedin_company_website)  
8 employees on LinkedIn®

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[Browse Diagramming Themes](/categories/diagramming/themes)

 ![Neeraja Prakash](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Neeraja Prakash")
NP

Researched and written by [Neeraja Prakash](https://research.g2.com/insights/author/neeraja-prakash)

Updated October 3, 2024

Diagramming software allows users to create detailed diagrams—such as flow charts and floor plans—out of data and images. Diagramming tools often include templates for building diagrams in addition to enabling users to create diagrams from scratch. Certain diagramming programs can integrate with other design tools, and may offer collaborative platforms so multiple users can view and edit diagram files at the same time.

To qualify for inclusion in the Diagramming category, a product must:

- Offer specialized tools for designing one or more types of diagrams, such as organizational charts and floorplans
- Provide industry-related shapes and elements for use in diagrams and allow users to create or import custom diagram components
- Allow specified users to view and interact with diagrams online during and after presentations

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