Ranked chart · Productivity

Best Diagram Software in 2026

Diagram software can help you turn processes, systems, and ideas into visuals. Compare the diagram types and import and export formats each option supports, then consider desktop app availability, real-time collaboration, and version history. Maximum editors can be useful to check for shared projects, while free plans and paid-from pricing offer points of comparison for access and cost. The entries include draw.io,…

36 appsSorted 25 Oct 2026How we rank

18.3

Structurizr

Structurizr is a models-as-code tool for creating multiple software architecture diagrams from one C4 model written in Structurizr DSL.

Free planOpen sourceWebAPILinux

From £300 a month

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28.1

Creately

Creately is a visual collaboration platform built around an infinite canvas for brainstorming, diagramming, planning, workshops, project management, and research.

Free planWebAPILinux

Free plan

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37.9

SmartDraw

SmartDraw is a paid diagramming application from SmartDraw, founded in 1994 and headquartered in The Woodlands, Texas.

AndroidiOSWeb

From $8.95 a month

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4
Sparx Enterprise Architect
Sparx Enterprise Architect is a multi-user visual modeling tool for business and IT systems, software and systems engineering, and real-time and embedded development.
Free planWebAPILinuxmacOS
7.9$245 one-time
Visit
5
EdrawMax
EdrawMax is a diagramming product for creating and exporting many kinds of diagrams.
Free planAndroidiOSWebLinux
7.7From $5.90 a month
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6
draw.io
draw.io is a free, open-source diagramming tool for making visual layouts ranging from flow charts and mind maps to network diagrams, floor plans,…
Free planOpen sourceAndroidiOSWebWindows
7.6Free plan
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7
Cacoo
Cacoo is an online diagramming and visual collaboration tool for creating flowcharts, wireframes, mind maps, workflows, and other visuals.
Free planWebAPISelf-hosted
7.5From $6 a month
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8
Eraser
Eraser is a diagramming tool for technical teams that can create diagrams from prompts, code, files and private Git repositories.
Free planWebAPIExtensionSelf-hosted
7.5From $15 a month
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9
Microsoft Visio
Microsoft Visio is diagramming software for turning complex information into visual diagrams.
Free planWebmacOSWindows
7.4From $5 a month
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10
Mermaid
Mermaid is an open-source JavaScript tool that turns Markdown-inspired text definitions into diagrams and visualizations.
Free planWebAPIExtensionLinux
7.3From $10 a month
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11
Visual Paradigm
Visual Paradigm is a visual modeling and development platform spanning diagramming, code engineering, agile management, and enterprise architecture.
Free planWeb
7.3From $4 a month
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12
Lucidchart
Lucidchart is a cloud-based tool for creating diagrams that help users understand and improve systems and processes.
Free planAndroidiOSWebAPI
7.2From $9 a month
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13
Grapholite
Grapholite is a diagramming tool for business graphics, including process charts, software models, organizational diagrams, and space plans.
AndroidiOSWebmacOS
7.0$49.99 one-time
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14
Hava
Hava generates interactive cloud infrastructure diagrams from connected AWS, Azure, and GCP environments.
Free planWebAPISelf-hosted
7.0From $59 a month
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15
IcePanel
IcePanel is a collaborative software-architecture diagramming and modelling tool built around the C4 model.
Free planWebAPI
7.0From $40 a month
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16
Holori
Holori is a web-based infrastructure visibility and cost optimization platform for teams managing major cloud providers.
Free planWeb
6.8From $49 a month
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17
ProcessOn
ProcessOn is an online diagramming tool for flowcharts, mind maps and other visual diagrams.
Free planAndroidiOSWeb
6.8Free plan
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18
OmniGraffle
iOSmacOS
6.7
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19
PlantUML
PlantUML turns textual descriptions into diagrams, covering UML types such as sequence, use-case, class, object, activity, component, deployment,…
Free planWebAPIExtensionLinux
6.7Free plan
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20
StarUML
StarUML is a software modeler for concise agile modeling.
ExtensionLinuxmacOSWindows
6.7$129 one-time
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21
Bizagi Modeler
Bizagi Modeler lets users create, document, simulate, publish, and share business processes using BPMN.
Free planWebWindows
6.6Free plan
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22
ConceptDraw DIAGRAM
macOSWindows
6.6$199 one-time
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23
Eclipse Papyrus
Eclipse Papyrus is a free modeling environment dedicated to UML and its extensions.
Free planWebLinuxmacOSSelf-hosted
6.5Free plan
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24
Pencil Project
Pencil Project is a free, open-source desktop tool for creating GUI mockups, wireframes, and diagrams.
Free planLinuxmacOSWindows
6.5Free plan
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25
TaskMap
Free planWindows
6.5$349 one-time
Visit