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Top Rated Diagram Software with Free

Last updated: June 2026

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43 software options

Lucidchart logo

Visual diagramming tool for team collaboration

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Our online diagramming application makes it easy to create and share professional diagrams.

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Vani logo
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The intelligent visual collaboration platform for your team.

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Vani is an intelligent visual collaboration platform that helps teams visualize, collaborate, and execute work together.

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Figma logo

Collaborative platform for UI designing and prototyping

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Figma is a cloud-based UI designing and prototyping tool, which allows multiple teams to collaborate on creating, testing, and deploying interface or product designs. Features include version history, project management, commenting, user-based permissions, plugin creation, and single sign-on (SSO).

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Miro logo

Miro is a visual workspace for innovation

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Miro is the #1 collaborative whiteboard platform, trusted by over 100M users worldwide. Create robust maps and diagrams that elevate knowledge and align everyone on the vision. Miro is ideal for diagramming complex systems,
processes, and customer journeys.

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Cacoo logo

Diagram maker for team collaboration & work processes

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Cacoo is an online diagram and collaboration tool for businesses to create sitemaps, flowcharts, mind maps, wireframes, mockups, and more

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JointJS logo

Diagramming library for No-Code and visual applications.

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JointJS+ is a diagramming toolkit, a commercial extension of JointJS, that allows businesses to create advanced Low-Code/No-Code and visual applications. Developers can utilize UI plugins to build custom applications, customize user interfaces and embed elements according to requirements.

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FigJam logo

Collaborative online whiteboard

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FigJam by Figma is a collaborative online whiteboard that allows teams to ideate and brainstorm together. The platform includes a range of templates for diagramming, mood boards, design sprints, team meetings, and more.

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EventDraw logo

Experience the Power of EventDraw: Where Events Come to Life

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EventDraw is top event diagram software with 2D/3D visualization, real-time collaboration, and a vast library for effortless event space design. From small gatherings to large conferences, it offers scalability, customization, and data analytics. Visit www.eventdraw.com to create remarkable events.

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JDElite Flowchart Builder logo

Flowchart and diagram software

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JDElite Flowchart Builder is an online tool for businesses to create from simple to most complex professional flowcharts for presentation, modeling, and documentation of data or processes.

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MindManager logo

Information mapping and idea visualization tool

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Mindjet’s information mapping software, MindManager, is available for both Windows and Mac, and is centered around information mapping – visual representations of ideas and information that can bridge the gap between brainstorming and action plan.

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WorkCanvas logo

Digital whiteboard to collaborate, plan, and visualize tasks

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WorkCanvas is a cloud-based digital whiteboard software that helps teams plan, collaborate, and execute tasks and projects.

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DRAKON Editor Web logo

Online diagram, flowchart, mind map, and checklist software

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DrakonHub is an online diagramming software enabling the creation of clear flowcharts, mind maps, and checklists. Designed for software developers, development managers, and business users to create visual business processes and summaries, DrakonHub supports tablet computers and real-time editing.

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Cloudcraft logo

Cloud architecture visualization

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Draw smart AWS cloud architecture diagrams

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ChartDB logo

Visual database diagramming solution

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ChartDB turns your schema into a visual ER diagram in seconds. Ideal for developers and teams working on database design, documentation, or migrations.

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Vexlio logo

Precise diagrams with interactive popups and sharing

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Create precise, interactive flowcharts with clickable popups and shareable viewer links. Smart snapping, LaTeX, and code highlighting.

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Mermaid Chart logo

Simplify Diagram Creation, Enhance Efficiency

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Mermaid Chart is a text-based diagramming tool with AI capabilities that enables teams to collaborate on visual flowcharts, sequence diagrams, and more.

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Zoho Show logo

Online Presentation Software

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Make detailed mind maps with a wide array of flowchart symbols. Add symbols, connectors and shapes, and edit them with vector precision.

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Graficto logo

The infographic creator creates fantastic infographics.

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Graficto is an easy-to-use infographic and smart visuals maker that allows you to create infographic designs in seconds.

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Thortspace logo

Cloud-based & on-premise strategic planning tool for teams.

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Thortspace is a cloud-based and on-premise strategic planning platform that helps businesses and organizations conceive new ideas, collaborate on existing ones, and capture knowledge. It is a collaborative mind mapping software that enables businesses to make diagrams of any thinking structure and the relationships amongst any set of thoughts.

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Software Ideas Modeler logo

Powerful diagramming and wireframing CASE tool

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Software Ideas Modeler is a lightweight yet powerful CASE tool. Its complete toolset allows users to describe and design software and processes using UML 2.5, BPMN 2.0, SysML 1.5, ERD, flowcharts, ArchiMate, Autosar, and other diagrams.

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Cacti logo

Network graphing RRDTool

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Cacti is an application performance management and monitoring RRDTool used to administrate network graphing functions. Cacti provides in-depth graph templating, numerous data acquisition methods all controlled through it's dashboard.

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Sketchboard logo

Virtual whiteboard solution for businesses of all sizes

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Sketchboard is a virtual whiteboard software that enables businesses of all sizes to visualize, share ideas, and collaborate with remote teams in real-time. Software development teams can utilize the platform to send or receive feedback on ideas, post comments, and share private whiteboards.

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Moqups logo

Wireframe, Diagram & Whiteboard Online

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Moqups is a cloud-based visual collaboration tool that helps organizations create & validate functional prototypes for designing websites or mobile applications. Whiteboard functionality lets teams collaborate on wireframes, mockups, and diagrams, and develop sitemaps, storyboards or flowcharts.

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AnyChart logo

Award-winning JavaScript charting library

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Award-winning JavaScript charting library. Enables developers to easily add stunning interactive charts and dashboards into any web, mobile, or standalone projects regardless of stack. Offers numerous built-in chart types, robust API and documentation, and enterprise-grade support.

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Collaboard logo

GDPR compliant online whiteboard with self-hosting options

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Swiss online whiteboard software for creative and interactive collaboration to bring your online meetings, and workshops to the next level. The software is GDPR-compliant, and the data is hosted securely in NL and Switzerland. You can also self-host the data on-premises or in your cloud.

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