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Best Diagram Software in 2026

Updated

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

35ranked
0free plans on this page
$59/molowest paid tier
4 Oct 2026last checked

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

  1. 26 Hava No phone app RecognisedPhone appDocumentedFree plan 5.7$59/mo Diagram types: Infrastructure, security group, list, container, hybrid cloudExport formats: PDF, PNG, VSDX, CSV, JSON
  2. 27 Modelio No phone app RecognisedPhone appDocumentedFree plan 5.5 Diagram types: UML, BPMN, ArchiMate, SysMLExport formats: XMI, HTML
  3. 28 Archi No phone app RecognisedPhone appDocumentedFree plan 5.5 Diagram types: ArchiMate Views, Sketch Views, Canvas ViewsExport formats: BMP, JPG, PNG, PDF, SVG, CSV, Open Exchange XML, HTML
  4. 29 StarUML No phone app RecognisedPhone appDocumentedFree plan 5.4$129/mo Diagram types: UML 2, entity-relationship, data flow, flowchart, mindmap, C4, SysML, BPMN, UI wireframe, AWS architecture, GCP architecture, Azure architectureReal-time collaboration: YesExport formats: PNG, JPEG, SVG, PDF, HTML
  5. 30 Dia No phone app RecognisedPhone appDocumentedFree plan 5.4 Diagram types: Entity-relationship diagrams; UML diagrams; flowcharts; network diagramsExport formats: EPS; SVG; XFIG; WMF; PNG
  6. 31 Graphviz No phone app RecognisedPhone appDocumentedFree plan 5.2 Diagram types: graph diagrams; network diagrams; hierarchical diagramsExport formats: BMP, EPS, GIF, JPEG, JSON, PDF, PNG, PS, SVG, TIFF, WebP, DOT, XDOT
  7. 32 Pencil Project No phone app RecognisedPhone appDocumentedFree plan 5.1 Diagram types: GUI mockups, wireframes, flowcharts, desktop UI, web UI, Android UI, iOS UIExport formats: PNG, HTML/web page, OpenOffice/LibreOffice text, SVG, PDF
  8. 33 TaskMap No phone app RecognisedPhone appDocumentedFree plan 5.0 Diagram types: process mapsExport formats: HTML/website, Excel, PowerPoint, Microsoft Project
  9. 34 Diagram Designer No phone app RecognisedPhone appDocumentedFree plan 4.9 Diagram types: flowcharts, UML class diagrams, illustrations, slide showsExport formats: WMF, EMF, BMP, JPEG, PNG, MNG, ICO, GIF, PCX
  10. 35 Violet UML Editor No phone app RecognisedPhone appDocumentedFree plan 4.8 Diagram types: class, sequence, state, object, use caseExport formats: PNG, JPEG

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