Best D2 Alternatives in 2026
The top D2 alternatives are draw.io, Lucidchart and Microsoft Visio: 15 diagramming software our editors would look at instead of D2, in our ranking order.
D2: A strong developer-focused choice for diagrams-as-code and offline rendering. Where it falls short: text-first authoring is less suited to drag-and-drop diagramming.
Switching from D2? For most diagramming software buyers the best D2 alternative is draw.io, built for most users needing broad, free diagramming. On a budget, Visual Paradigm starts at $4/user/mo.
Why People Look for a D2 Alternative
- Text-first authoring is less suited to drag-and-drop diagramming
- Developer-oriented features may not fit general business users
- Local workflows are not centered on hosted collaborative editing
Quick Picks by What You Need
- Best overalldraw.io9.4
Most users needing broad, free diagramming
Visit draw.io - Lowest priceVisual Paradigm8.8
Paid plans from $4/user/mo
Visit Visual Paradigm - Best free optiondraw.io9.4
Has a free plan
Visit draw.io
All 15 D2 Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Sponsored alternatives to D2 Sponsored alternative
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Best forMost users needing broad, free diagramming
- Better than D2:
- Editor score 9.4 vs 6.3
A broad, free diagramming editor with strong format support and collaboration options.
- Real-time collaboration
9.4/10★★★★★Visit draw.io -
Best forCollaborative teams and business diagramming
- Better than D2:
- Editor score 9.3 vs 6.3
A broad, collaborative diagramming workspace for business and technical teams.
- Offline editing
- Real-time collaboration
9.3/10★★★★★Visit Lucidchart -
Best forMicrosoft-centric organizations
- Better than D2:
- Editor score 9.1 vs 6.3
A mature Microsoft-focused diagramming suite with web, Teams, and desktop options.
- Real-time collaboration
9.1/10★★★★★Visit Visio -
Best forBusiness and technical diagramming teams
- Better than D2:
- Editor score 8.9 vs 6.3
A paid diagramming suite with wide coverage, collaboration, migration tools, and integrations.
- Real-time collaboration
8.9/10★★★★☆Visit SmartDraw -
Best forTechnical modeling and engineering teams
- Better than D2:
- Editor score 8.8 vs 6.3
A broad modeling suite for technical teams that need formal notation, collaboration, and engineering tools.
- Real-time collaboration
8.8/10★★★★☆See Visual Paradigm -
Best forOpen-source UML and technical diagrams
- Better than D2:
- Editor score 8.7 vs 6.3
A capable text-first diagram generator for technical teams and documentation workflows.
8.7/10★★★★☆Visit PlantUML -
Best forEnterprise architecture and requirements modeling
- Better than D2:
- Editor score 8.6 vs 6.3
A deep enterprise modeling suite with broad standards support and high paid-license costs.
- Real-time collaboration
8.6/10★★★★☆Visit site -
Best forFree desktop graph and diagram editing
- Better than D2:
- Editor score 8.5 vs 6.3
A mature free desktop diagram editor with strong graph layouts and broad format support.
8.5/10★★★★☆Visit yEd -
Best forBPMN process modeling
- Better than D2:
- Editor score 8.4 vs 6.3
A focused BPMN tool with a capable free plan and enterprise collaboration options.
- Real-time collaboration
8.4/10★★★★☆Visit Bizagi -
Best forDesktop diagramming with Visio compatibility
- Better than D2:
- Editor score 8.3 vs 6.3
A capable desktop diagramming suite with Visio compatibility, but no collaboration.
8.3/10★★★★☆Visit ConceptDraw -
Best forMac and iPad diagramming professionals
- Better than D2:
- Editor score 8.2 vs 6.3
A precise Mac and iPad diagramming tool with paid-only access and focused Apple coverage.
8.2/10★★★★☆Visit OmniGraffle -
Best forWorkshops and visual collaboration
- Better than D2:
- Editor score 8.0 vs 6.3
A flexible web workspace for diagrams, workshops, collaboration, and project views.
8.0/10★★★★☆Visit Creately -
Best forSAP process modeling environments
- Better than D2:
- Editor score 7.9 vs 6.3
A strong fit for SAP-centered process modeling, with custom pricing and contract-dependent API access.
7.9/10★★★★☆Visit SAP Signavio -
Best forAI-assisted technical diagramming
- Better than D2:
- Editor score 7.8 vs 6.3
A flexible technical diagramming workspace with AI, diagram-as-code, and collaboration.
- Real-time collaboration
7.8/10★★★★☆Visit Eraser -
Best forCross-platform diagram and infographic work
- Better than D2:
- Editor score 7.7 vs 6.3
A broad diagramming suite with AI, collaboration, imports, and flexible exports.
7.7/10★★★★☆Visit EdrawMax
D2 Alternatives: Common Questions
What is the best alternative to D2?
draw.io: #1 in our Diagramming Software ranking, with an editor score of 9.4 out of 10. A broad, free diagramming editor with strong format support and collaboration options.
Is there a free alternative to D2?
Yes. draw.io, Lucidchart, Visual Paradigm, PlantUML and Sparx Enterprise Architect have a free plan or a free tier (10 of the 15 alternatives on this page).
What is the cheapest paid alternative to D2?
Of the alternatives here that publish a price, Visual Paradigm starts lowest, at $4/user/mo.
Why do people look for D2 alternatives?
Text-first authoring is less suited to drag-and-drop diagramming; Developer-oriented features may not fit general business users; Local workflows are not centered on hosted collaborative editing.
How do I switch from D2?
Export your data from D2 (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel D2.
How to Switch from D2
- Export your data from D2 (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel D2.
D2 vs Each Alternative
| # | Tool | Free plan | Paid from | Real-time collaboration | Diagram types | Score |
|---|---|---|---|---|---|---|
| 29 | D2 | Yes | Free | software architecture diagrams; UML class diagrams; sequence diagrams | 6.3 | |
| 1 | draw.io | Yes | Free | Yes | 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 models | 9.4 |
| 2 | Lucidchart | Yes | Free | Yes | process maps, flowcharts, org charts, technical diagrams, system architecture diagrams, UML diagrams, ERDs, sequence diagrams, Gantt charts, C4 models | 9.3 |
| 3 | Microsoft Visio | No | $5/user/mo | Yes | 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 chart | 9.1 |
| 4 | SmartDraw | No | Yes | 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 diagrams | 8.9 | |
| 5 | Visual Paradigm | Yes | $4/user/mo | Yes | UML, SysML, flowchart, organization chart, ER, BPMN, data-flow, EPC, mind map, C4, Gantt, wireframe, cloud architecture | 8.8 |
| 6 | PlantUML | Yes | Free | Sequence, use-case, class, object, activity, component, deployment, state, timing, regex, network, wireframe, Archimate, Gantt, mind map, WBS, EBNF, JSON, YAML | 8.7 | |
| 7 | Sparx Enterprise Architect | Yes | Yes | UML Use Case, Activity, State, Interaction Overview, Sequence, Communication, Package, Class, Object, Composite, Component, Deployment; BPMN; SysML | 8.6 | |
| 8 | yEd Graph Editor | Yes | Free | BPMN diagrams, semantic networks, family trees, flowcharts, social networks, UML class diagrams, entity relationship diagrams, swimlane diagrams | 8.5 | |
| 9 | Bizagi Modeler | Yes | Yes | BPMN process diagrams; value chain diagrams | 8.4 | |
| 10 | ConceptDraw DIAGRAM | No | $199 one-time | 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, presentations | 8.3 | |
| 11 | OmniGraffle | No | family trees, flow charts, org charts, layouts, directed graphs, nondirected graphs | 8.2 | ||
| 12 | Creately | Yes | $5/mo | 8.0 | ||
| 13 | SAP Signavio Process Modeler | No | BPMN 2.0; value chains; DMN | 7.9 | ||
| 14 | Eraser | Yes | $15/user/mo | Yes | Flow charts, entity-relationship diagrams, cloud architecture diagrams, sequence diagrams, BPMN diagrams | 7.8 |
| 15 | EdrawMax | Yes | $5.90/mo | 7.7 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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