TL;DR: Draw.io / diagrams.net fits teams that need a free, offline-capable diagram tool with no seat fees. Lucidchart fits professional diagramming with published Individual/Team rates. Microsoft Visio fits Microsoft 365 users who want desktop-grade diagrams inside the Microsoft stack. Order is not a quality ranking.
A diagram software tool creates flowcharts, network diagrams, UML, org charts and process maps. This comparison covers widely used options with public pricing.
Every entry uses the same fields. The order below is not a quality ranking. Free and published-price options appear first.
Diagram software compared at a glance
| Provider | Published pricing | Free limit | Best for | Link |
|---|---|---|---|---|
| draw.io / diagrams.net | $0 (open-source / free web & desktop) | Full core features; no seat limit | Teams wanting free professional diagrams | Visit → |
| Lucidchart | Free; Individual from ~$9; Team from ~$10/user | Limited documents on free | Professional diagramming + collaboration | Visit → |
| Microsoft Visio | Included in some Microsoft 365 plans or separate from ~$5–15/user | Depends on M365 plan | Microsoft 365 diagramming | Visit → |
| Miro | Free with 3 editable boards. Starter $8 per member per month, billed yearly. Business $20 per member per month, billed yearly. Enterprise custom from 30 members. | Member, yearly on paid | A team that wants a free board start, then a seat price | Visit → |
Packaging was read on 16 September 2026. draw.io remains fully free. Lucidchart and Visio publish list or plan-inclusion rates.
The 4 companies in detail
1. draw.io / diagrams.net
Best for: Any team that needs professional flowcharts and diagrams with zero software cost and offline desktop apps.
| Published pricing | $0 |
| Free / trial | Full product free |
| Main limitation | Less polished real-time collaboration than paid SaaS |
- Completely free web and desktop versions.
- Stores files in Google Drive, OneDrive, GitHub or local.
- Supports standard diagram types and export.
2. Lucidchart
Best for: Teams that need collaborative professional diagramming with published per-user rates and strong template libraries.
| Published pricing | Free tier; Individual and Team published rates |
| Main limitation | Advanced features and unlimited docs on paid |
- Clear published Individual and Team pricing.
- Deep shape libraries and data linking.
- Integrates with the Lucid Suite including Lucidspark.
3. Microsoft Visio
Best for: Organizations already on Microsoft 365 that want Visio diagrams inside the Microsoft ecosystem.
| Published pricing | Plan inclusion or separate Visio plans |
| Main limitation | Best value when already licensed for Microsoft 365 |
- Desktop and web options.
- Strong for process and network diagrams in Microsoft environments.
- Pricing depends on the chosen Microsoft 365 or Visio plan.
4. Miro
Best for: Teams that want diagrams on a collaborative canvas, with a free plan limited to three editable boards and published Starter and Business seat rates.
| Published pricing | Free. Starter $8 per member/month billed yearly. Business $20 per member/month billed yearly. Enterprise custom from 30 members. |
| Free / trial | Free plan: 3 editable boards, templates, and core formats |
| Diagram fit | Diagrams, flows and technical shapes on the canvas; Business adds 4,700+ shapes including UML, BPMN and cloud |
| Main limitation | Free keeps only three boards editable; advanced diagram shape libraries sit on Business |
- Free plan is usable for a small set of boards before a paid seat.
- Starter publishes unlimited boards at $8 per member/month billed yearly.
- Business is the tier that adds the larger technical shape libraries.
Kurums Match
Start with draw.io if budget is zero. Move to Lucidchart for collaboration polish. Choose Visio if the team already lives in Microsoft 365. Choose Miro when diagrams need to live on a shared workshop canvas.
Buying tip: Confirm whether Visio is already included in your Microsoft 365 SKU before buying a separate seat.
How this comparison was put together: Official pages checked 16 September 2026. Order follows free / published price rule.
FAQ
Is draw.io really free for commercial use?
Yes, the core diagrams.net / draw.io product is free for commercial use under its published terms.
Related: Best Digital Whiteboard Software in 2026
Last checked: 4 October 2026. Miro pricing rechecked on the official page the same day.
Discover more from Kurums | Business Intelligence
Subscribe to get the latest posts sent to your email.
