Productivity
Best Diagram Software in 2026
Diagram software turns processes, systems, and ideas into visuals you can create and revise. Compare on diagram types and import and export formats, then check desktop app availability, maximum editors, real-time collaboration, and version history.
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Creately Free plan Web · Windows · macOS · Linux9.3 Visit Specs - 02
Cacoo Cacoo suits teams that need to make and share diagrams together, from process maps to technical architecture visuals.
From $6/mo Free plan Web · API · Self-hosted9.2 Visit Specs - 03
Eraser Eraser suits enterprise architects, DevOps teams, technology consultants, and software engineers who need technical diagrams and team collaboration.
From $15/mo Free plan Web · API · Self-hosted · Browser extension9.1 Visit Specs - 04
Sparx Enterprise Architect It suits analysts, designers, architects, developers, testers, project managers, and maintenance staff working with modeled business or technical systems.
Free plan Web · Windows · macOS · Linux8.8 Visit Specs - 05
draw.io draw.io suits individuals and teams who need to create and share diagrams across platforms without signing up.
Free plan Open source Web · Windows · macOS · Linux8.7 Visit Specs - 06
EdrawMax EdrawMax suits people who need varied diagram types, templates, import and export formats, or AI-assisted diagram tools.
From $5.90/mo Free plan Web · Windows · macOS · Linux8.7 Visit Specs - 07
Structurizr Structurizr suits software architects and development teams that want to maintain multiple diagrams from a shared model.
From £25/mo Free plan Open source Web · Windows · macOS · Linux8.7 Visit Specs - 08
SmartDraw SmartDraw suits building and facility managers, construction and public safety professionals, investigators, and estimators who need plans or technical diagrams.
From $0.75/mo Free trial Web · Windows · macOS · Linux8.6 Visit Specs - 09
ConceptDraw DIAGRAM From $199/mo Free trial Windows · macOS8.5 Visit Specs - 10
Hava From $59/mo Free plan Web · API · Self-hosted8.4 Visit Specs - 11 Lucidchart
Lucidchart suits people who need to diagram processes, teams, or technical systems, especially when they want data-linked visuals or collaboration.
From $9/mo Free plan Web · iOS · Android · API8.4 Visit Specs - 12
Astah Professional It suits individuals and teams visualizing software designs, databases, and related requirements on desktop operating systems.
Free trial Windows · macOS · Linux · API8.3 Visit Specs - 13 Grapholite
Grapholite may suit people who need diagrams for processes, organizations, software models, or floor and office plans.
Free trial Web · Windows · macOS · iOS8.3 Visit Specs - 14 Microsoft Visio
Visio suits people who need to create diagrams ranging from flowcharts to technical, business, and floor-plan formats.
From $5/mo Free plan Web · Windows · macOS8.3 Visit Specs - 15
Archi Free plan Windows · macOS · Linux8.2 Visit Specs - 16
IcePanel From $40/mo Free plan Web · API8.2 Visit Specs - 17
Mermaid Mermaid is aimed at teams and visual thinkers, including developers, data engineers, analysts, educators, consultants, technical writers, and project managers.
From $10/mo Free plan Web · Windows · macOS · Linux8.2 Visit Specs - 18
Bizagi Modeler It suits people documenting or simulating business processes with BPMN, including teams that need process diagrams published to web or SharePoint.
Free plan Web · Windows8.1 Visit Specs - 19
Eclipse Papyrus Papyrus suits engineering and modeling teams that need UML or related standards, including users seeking an open-source tool for industrial or academic work.
Free plan Web · Windows · macOS · Linux8.1 Visit Specs - 20 Graphviz Free plan Windows · macOS · Linux · API8.1 Visit Specs
- 21 Visual Paradigm
Visual Paradigm suits individuals and teams working across diagrams, software development, agile management, or enterprise architecture.
From $4/mo Free plan Web8.1 Visit Specs - 22
Cloudcraft Free plan Web · API8.0 Visit Specs - 23
Holori From $49/mo Free plan Web8.0 Visit Specs - 24 PlantUML
PlantUML suits people who want to generate diagrams from text, including UML and several non-UML formats.
Free plan Web · Windows · macOS · Linux8.0 Visit Specs - 25 StarUML From $129/mo Free trial Windows · macOS · Linux · Browser extension8.0 Visit Specs
Free-plan access and paid starting prices add useful cost context. EdrawMax, draw.io, and Creately are among the options to weigh, alongside ProcessOn and Cacoo. If diagrams are shared work, editor limits and collaboration features may matter; for individual projects, the formats and diagram types you need may be the more relevant points.