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Top Rated Diagram Software with Open source - Page 3

Last updated: October 2026

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112 software options

VisionFlow logo

Product dev., ALM, ITSM, Help Desk, Project Mng. and CRM

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VisionFlow is a powerful, web-based software with modules for Issue Tracking, Customer Support, CRM, Time Management, Document management, Product and Release management, Asset Management and much more. VisionFlow offers extensive functionality but is easy to use and flexible at the same time.

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Cyzag logo

Driven by Data, Powered by You

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Cyzag boosts profitability by streamlining workflows, improving efficiency, and empowering teams with data-driven insights.

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SAP Signavio logo

Understand, improve, and transform business processes

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SAP Signavio solutions help companies accelerate each phase of any transformation project, allowing them to prepare faster, deploy faster, and realize continuous value. As a market leader in business process transformation, customers look to SAP Signavio.

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Astah SysML logo

Lightweight SysML modeling for MBSE teams

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Create SysML v1 block definition, internal block, parametric, requirement, and state machine diagrams in one desktop tool for Windows and macOS. All diagrams share one model, and free plug-ins add rule-based legends, dependency matrices, and HTML export for sharing models with stakeholders.

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Textografo logo

Create flowcharts, mind maps and such from text

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Textografo is an online diagramming tool that enables users to create static and animated diagrams from text, including decision trees, mindmaps, and flowcharts

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Astah Professional logo

Desktop UML and data modeling with AI assistance

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Create UML 2.x, ER, data flow, flowchart, CRUD, requirement, and mind map diagrams in one desktop tool for Windows, macOS, and Linux. Export diagrams as images, embed them in Word and Excel with the Office Integration plug-in, or convert them to PlantUML and Mermaid text.

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Slickplan logo

Plan websites faster, together.

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Create user journeys, decision trees and workflows connected directly to sitemap pages for accurate UX planning.

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Pencil Project logo

GUI prototyping software with built-in shapes collection

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Pencil Project is an open-source GUI prototyping software designed to help developers create mockups across popular desktop platforms. It lets teams draw different types of user interfaces ranging from desktop to mobile platforms using the built-in shapes collection.

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draw.io logo

Open platform for creating & sharing diagrams

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draw.io is a free diagramming application for creating and sharing diagrams within any web browser, with integration to G Suite/Google Drive & Dropbox

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EdrawMax logo

All-in-one diagram tool.

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Edraw Max is an all-in-one diagram creation solution that allows businesses to design a range of diagrams for illustrating workflows, floor plans, organizational charts, and more. The platform allows users to create flow charts, mind maps, fishbone diagrams, UML diagrams, and more.

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Dia Diagram Editor logo

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Visio logo

Diagramming, process modeling & data visualization

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Microsoft Visio is a cloud-based flowchart and diagram creation tool, designed to aid collaboration and connect real-time data with business workflows. The platform enables communication of complex information through data-linked diagrams, flowcharts, org charts, floor plans, and more.

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Creately logo

From Idea to Execution - 10x Faster with AI Diagrams

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Creately is a next-generation AI-powered diagramming tool trusted by professionals worldwide. Whether you need genograms for counseling, org charts for business, or UML for software, Creately delivers with an intuitive editor and smart templates.

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Gliffy logo

Create quick, easy, professional diagrams today!

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With Gliffy you can create professional-looking flowcharts, UML diagrams, entity-relationship diagrams, and more in just a few clicks

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SmartDraw logo

Precise floor plans and diagrams without CAD complexity

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SmartDraw makes professional drawings and diagrams accessible to everyone. SmartDraw can replace Lucidchart or Visio at your enterprise. Create flowcharts, organizational charts, floor plans, CAD drawings, project charts, network diagrams, UML diagrams, AWS, Azure, and more.

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empower logo

Create documents faster, stay on-brand, reduce complexity.

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empower® Chart Creation is designed for building complex business charts and is ideal for data-driven presentations. With more than 40 chart types, including waterfall, Mekko, and Gantt charts as well as Excel linking and automatic layout adjustments, users create charts around 50% faster.

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MyDraw logo

MyDraw- Advanced Diagramming Software

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MyDraw is a cloud-based whiteboard solution that helps small to large businesses create flowcharts and diagrams via text formatting, automatic layouts, barcodes, image generation, and pre-made templates. Key features include data import/export, predefined shapes, user interface, and more.

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Apache OpenOffice logo

Multilingual open-source office suite

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Apache OpenOffice is an open-source office suite that helps organizations create spreadsheets, presentations, and graphics, among other files. The writer module offers document templates, which allow team members to create letters, agendas, and faxes with table of contents, references, and notes.

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Simulaction logo
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dbForge Query Builder for MySQL logo
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MySQL and MariaDB query builder tool

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dbForge Query Builder for MySQL is a sophisticated visual tool designed for database professionals who need to create and edit complex MySQL and MariaDB queries efficiently.

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FrameFlow logo
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Server monitoring & log management platform

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FrameFlow is a server monitoring and log management platform that assesses the performance of online systems and creates risk management alerts. It can be installed onto one system within minutes and can be built upon to extend monitoring, reporting, and more.

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SankeyJourney logo
(0)

Visualize Your Customer's Journey with SankeyJourney

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Online tool for analyzing user journeys through Sankey diagrams or flow charts. Upload a CSV file containing event data from your website or app, and quickly generate an interactive data visualization interface that illustrates your customer paths. Boost your engagement, retention, and monetization.

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DiagramDeck logo
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Blueprintr logo
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Tekyous logo
(0)

Interactive tech stack builder for developers

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Tekyous is an interactive tech stack builder and tools directory designed for developers and founders. The platform allows users to browse hundreds of developer tools, compare alternatives, and receive questionnaire-driven stack recommendations based on project parameters. It features a visual architecture diagram editor that updates in real time, enables users to swap tools instantly, and provides hints on tool relationships and conflicts.

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