18.7
Creately is a visual collaboration platform built around an infinite canvas for brainstorming, diagramming, planning, workshops, project management, and research.
Free planWebAPILinux
Best Diagramming Tools in 2026
28.7
Structurizr is a models-as-code tool for creating multiple software architecture diagrams from one C4 model written in Structurizr DSL.
Free planOpen sourceWebAPILinux
38.6
SmartDraw is a paid diagramming application from SmartDraw, founded in 1994 and headquartered in The Woodlands, Texas.
AndroidiOSWeb
- 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 planWebAPILinuxmacOS8.6$245 one-time - 5
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 sourceAndroidiOSWebWindows8.4Free plan - 6
EdrawMax
EdrawMax is a diagramming product for creating and exporting many kinds of diagrams.
Free planAndroidiOSWebLinux8.3From $5.90 a month - 7
Microsoft Visio
Microsoft Visio is diagramming software for turning complex information into visual diagrams.
Free planWebmacOSWindows8.2From $5 a month - 8
Gluu
Gluu is a paid process management platform from Gluu, founded in 2011 and headquartered in Copenhagen, Denmark.
AndroidiOSWebAPI8.2From €2 a month - 9
Lucidchart
Free planAndroidiOSWeb8.1Free plan - 10
Eraser
Eraser is a diagramming tool for technical teams that can create diagrams from prompts, code, files and private Git repositories.
Free planWebAPIExtensionSelf-hosted8.1From $15 a month - 11
Visual Paradigm
Visual Paradigm is a visual modeling and development platform spanning diagramming, code engineering, agile management, and enterprise architecture.
Free planWeb8.0From $4 a month - 12
Cacoo
Cacoo is an online diagramming and visual collaboration tool for creating flowcharts, wireframes, mind maps, workflows, and other visuals.
Free planWebAPISelf-hosted8.0From $6 a month - 13
Software Ideas Modeler
Software Ideas Modeler is a CASE tool for software and process design built around diagrams.
LinuxmacOSSelf-hostedWindows8.0$59 one-time - 14
Mermaid
Mermaid is an open-source JavaScript tool that turns Markdown-inspired text definitions into diagrams and visualizations.
Free planWebAPIExtensionLinux7.8From $10 a month - 15
Ilograph
Ilograph creates interactive visual documentation for systems and the relationships and flows between their components.
Free planWebAPILinuxmacOS7.8From $14.99 a month - 16
Gliffy
Gliffy is a web-based diagramming tool with support for a wide range of visual formats, including flowcharts, UML and BPMN diagrams, network maps,…
Free planWeb7.7From $2.80 a month - 17
Preceden
Preceden is a web-based tool for creating visual timelines about projects, history, legal cases, research, and writing.
Free planAndroidiOSWeb7.7From $10 a month - 18
Camunda
Camunda is a business-process orchestration platform for coordinating people, AI agents, systems, and devices across end-to-end workflows.
Free planWebAPILinuxmacOS7.6Free plan - 19
PlantUML
PlantUML turns textual descriptions into diagrams, covering UML types such as sequence, use-case, class, object, activity, component, deployment,…
Free planWebAPIExtensionLinux7.4Free plan - 20
UMLet
UMLet is a free, open-source tool for quickly sketching UML diagrams.
Free planWebExtensionLinuxmacOS7.4Free plan - 21
Bizagi Modeler
Bizagi Modeler lets users create, document, simulate, publish, and share business processes using BPMN.
Free planWebWindows7.3Free plan - 22
OmniGraffle
iOSmacOS7.3 - 23
MyDraw
WebmacOSWindows7.3From $36 a year ($3 a month) - 24
IcePanel
IcePanel is a collaborative software-architecture diagramming and modelling tool built around the C4 model.
Free planWebAPI7.3From $40 a month - 25
Arcentry
Arcentry is software for creating interactive infrastructure diagrams for cloud, on-premises, and open-source systems.
Free planWebAPISelf-hosted7.3From $9.90 a month