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Best Diagram Software in 2026

Updated

In short: draw.io is ranked #1 of 37 as of 4 October 2026, ahead of EdrawMax and Lucidchart. The best-ranked option with a free plan is EdrawMax. The lowest first paid tier on this page is Visual Paradigm at $4/mo.

Diagrams can make processes, systems, and ideas easier to map and share. Compare the diagram types each tool supports with import and export formats, then consider desktop app availability and the maximum number of editors. Real-time collaboration and version history matter if others will work on diagrams or you need to track changes. Free plans and paid-from pricing help frame the cost. The entries include draw.io, EdrawMax, and Lucidchart, with ProcessOn and Grapholite also represented. Weigh these details against the work you need to visualize, the formats you already use, and whether diagrams will be maintained by one person or a group.

37 diagram software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.

37ranked
11free plans on this page
$4/molowest paid tier
4 Oct 2026last checked

Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score

  1. 1 draw.io iPhone + Android RecognisedPhone appDocumentedFree plan 7.8Free Diagram types: flow charts, mind maps, org charts, Venn diagrams, infographics, network diagrams, architecture diagrams, floor plans, electrical diagrams, rack diagrams, UML diagrams, BPMN diagrams, Kanban boards, ER diagrams, Mermaid diagrams, Gitflow diagrams, C4 models, threat modelsReal-time collaboration: YesExport formats: PNG, SVG, JPEG, animated GIF, PDF, HTML, URL, XML, JSON
  2. 2 EdrawMax iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$5.90/mo
  3. 3 Lucidchart iPhone + Android RecognisedPhone appDocumentedFree plan 7.7$9/mo Diagram types: flowcharts, org charts, entity relationship diagrams, sequence diagrams, mind maps, UML/class diagrams, process diagramsReal-time collaboration: YesExport formats: PDF, PNG, JPEG, SVG, VSDX, VDX, JSON, CSV, BPMN
  4. 4 ProcessOn iPhone + Android RecognisedPhone appDocumentedFree plan 7.7Free Diagram types: mind maps, flowcharts, swimlane diagrams, Gantt charts, UML diagrams, architecture diagrams, ER diagrams, network topology diagrams, organizational charts, Venn diagrams, BPMN diagrams, circuit diagrams, floor plans, timelines, fishbone diagrams, tree diagrams, matrix diagrams, data visualization chartsReal-time collaboration: YesExport formats: PNG, PDF, PPT, SVG, Excel, Word, JPG, POS, XMind, FreeMind, Visio
  5. 5 Grapholite iPhone + Android RecognisedPhone appDocumentedFree plan 6.7 Diagram types: flowcharts, organizational charts, mind maps, swimlanes, SWOT diagrams, BPMN diagrams, UML diagrams, floor plans, brainstorming diagrams, website wireframes, workflow diagrams, TQM diagrams, Venn diagrams, network layouts, planograms, office plans, home plansExport formats: PNG, JPEG, PDF, SVG, VDX
  6. 6 OmniGraffle iPhone only RecognisedPhone appDocumentedFree plan 6.7 Diagram types: family trees, flow charts, org charts, layouts, directed graphs, nondirected graphsExport formats: PNG, JPG, GIF, BMP, TIFF, PDF, EPS, PSD, SVG, OmniOutliner, Visio XML
  7. 7 Cacoo No phone app RecognisedPhone appDocumentedFree plan 6.4$6/mo Diagram types: flowcharts, wireframes, mind maps, process diagrams, BPMN diagrams, network diagrams, UML diagrams, organizational charts, timelines, charts, wireframesReal-time collaboration: YesExport formats: PNG, SVG, PDF, PS, PPT
  8. 8 Visual Paradigm No phone app RecognisedPhone appDocumentedFree plan 6.4$4/mo Diagram types: UML, SysML, flowchart, organization chart, ER, BPMN, data-flow, EPC, mind map, C4, Gantt, wireframe, cloud architectureReal-time collaboration: YesExport formats: JPG, PNG, SVG, TIFF, EMF, PDF, XML, Excel, XMI, UML2
  9. 9 Eraser No phone app RecognisedPhone appDocumentedFree plan 6.3$15/mo Diagram types: Flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams, BPMN diagramsReal-time collaboration: YesExport formats: PNG, SVG, PDF, PowerPoint, Google Slides, BPMN, Visio, draw.io, Markdown
  10. 10 Bizagi Modeler No phone app RecognisedPhone appDocumentedFree plan 6.2Free Diagram types: BPMN process diagrams; value chain diagramsReal-time collaboration: YesExport formats: Image; Visio; XPDL; XML; BPMN; Word; PDF; Web; SharePoint; Wiki
  11. 11 Buddi No phone app RecognisedPhone appDocumentedFree plan 6.2Free Diagram types: class, sequence, state, object, use caseExport formats: PNG, JPEG
  12. 12 Creately No phone app RecognisedPhone appDocumentedFree plan 6.2Free
  13. 13 IcePanel No phone app RecognisedPhone appDocumentedFree plan 6.1$40/mo Diagram types: Context diagrams, app diagrams, component diagramsReal-time collaboration: YesExport formats: PNG, PDF, JSON, CSV, HTML, LLMs.txt, PlantUML, Mermaid
  14. 14 Sparx Enterprise Architect No phone app RecognisedPhone appDocumentedFree plan 5.8 Diagram types: UML Use Case, Activity, State, Interaction Overview, Sequence, Communication, Package, Class, Object, Composite, Component, Deployment; BPMN; SysMLReal-time collaboration: YesExport formats: XMI, PDF, HTML, RTF, XSD, DDL
  15. 15 Structurizr No phone app RecognisedPhone appDocumentedFree plan 5.6£300/mo Diagram types: system landscape, system context, container, component, code, dynamic, deployment, custom, filtered, imageExport formats: PlantUML, C4-PlantUML, Mermaid, WebSequenceDiagrams, static HTML, PNG, SVG, JSON, theme
  16. 16 Astah Professional No phone app RecognisedPhone appDocumentedFree plan 5.4 Diagram types: Class, object, communication, timing, component, deployment, composite structure, use case, sequence, activity, statemachine, package, requirement, mind map, ER, flowchart, CRUD, data flow, traceability map, Eriksson-Penker processReal-time collaboration: NoExport formats: JPEG, PNG, EMF, SVG, RTF, HTML, CSV, XML, CMOF
  17. 17 SmartDraw No phone app RecognisedPhone appDocumentedFree plan 5.4 Diagram types: floor plans, site plans, building layouts, evacuation plans, accident reconstructions, crime scenes, circuit diagrams, wiring diagrams, electrical plans, planograms, flowcharts, organizational charts, network diagrams, UML diagrams, ERDs, data flow diagrams, timelines, mind maps, Gantt charts, cause-and-effect diagramsReal-time collaboration: YesExport formats: JPEG, PNG, SVG, PDF, Visio
  18. 18 yEd Graph Editor No phone app RecognisedPhone appDocumentedFree plan 5.4 Diagram types: BPMN diagrams, semantic networks, family trees, flowcharts, social networks, UML class diagrams, entity relationship diagrams, swimlane diagramsExport formats: PDF, SVG, EMF, JPG, GIF, BMP, PNG, HTML, EPS, SVGZ
  19. 19 Archi No phone app RecognisedPhone appDocumentedFree plan 5.3 Diagram types: ArchiMate Views, Sketch Views, Canvas ViewsExport formats: BMP, JPG, PNG, PDF, SVG, CSV, Open Exchange XML, HTML
  20. 20 ConceptDraw MINDMAP No phone app RecognisedPhone appDocumentedFree plan 5.3$199/mo Diagram types: flowcharts, block diagrams, process diagrams, UML diagrams, organizational charts, network diagrams, rack diagrams, cloud service architecture diagrams, technical schematics, building plans, floor plans, dashboards, infographics, presentationsExport formats: PNG, JPG, BMP, GIF, TIFF, EPS, Adobe PDF, HTML, SVG, PowerPoint, VDX, VSDX
  21. 21 Dia No phone app RecognisedPhone appDocumentedFree plan 5.3 Diagram types: Entity-relationship diagrams; UML diagrams; flowcharts; network diagramsExport formats: EPS; SVG; XFIG; WMF; PNG
  22. 22 Diagram Designer No phone app RecognisedPhone appDocumentedFree plan 5.3 Diagram types: flowcharts, UML class diagrams, illustrations, slide showsExport formats: WMF, EMF, BMP, JPEG, PNG, MNG, ICO, GIF, PCX
  23. 23 Holori No phone app RecognisedPhone appDocumentedFree plan 5.3 Diagram types: AWS, Azure, GCP, multi-cloud, Kubernetes, Terraform, cloud architectureReal-time collaboration: YesExport formats: PNG, SVG, JPG, PDF
  24. 24 Microsoft Visio No phone app RecognisedPhone appDocumentedFree plan 5.3$5/mo Diagram types: basic, block, business matrix, Venn, cycle, pyramid, flowchart, process, cross-functional, SDL, UML, ERD, network, Azure, AWS, BPMN, floor plan, HVAC, plant layout, timeline, Gantt, PERT, ITIL, Pivot, Six Sigma, value-stream map, organization chartReal-time collaboration: YesExport formats: PDF, PNG, JPG, SVG, EMF, GIF, TIF, BMP, WMF
  25. 25 Modelio No phone app RecognisedPhone appDocumentedFree plan 5.3 Diagram types: UML, BPMN, ArchiMate, SysMLExport formats: XMI, HTML

Is your app on this list?

Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.

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Questions about this list

Which diagram software is ranked first on Samsung Mobile US Press?

draw.io is ranked #1 of 37 with a score of 7.8. EdrawMax is second and Lucidchart third.

How many of these have a free plan?

11 of the 25 on this page publish a free plan on their own pricing pages.

Which is the cheapest paid option?

On this page, Visual Paradigm has the lowest first paid tier we found: $4/mo.

How is this list ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.

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