A diagram editor that talks back

The editor and the diagram are one surface. Type and watch it render. Click a shape and land on the line that drew it. The feedback loop is instant.

Download for macOS Buy License — $14.99/yr

Edit and explore in the same window

  • ✓ Live render — the diagram redraws as you type, not after you save
  • ✓ Click to navigate — click any element in the diagram to jump to its source line
  • ✓ Scroll sync — editor and preview stay in lockstep as you move through large diagrams
  • ✓ 26 chart types — sequence, flowchart, entity relationship, pie, timeline, bar, scatter, and more
  • ✓ 8 palettes, Vim mode, export to PNG/SVG/PDF/HTML
Sequence diagram in Diagrammo
Pie chart in Diagrammo
Timeline with settings panel in Diagrammo
Org chart in Diagrammo
Flowchart in Diagrammo

System requirements

● macOS 12+
● Apple Silicon
● 14-day free trial

Frequently asked questions

How much does Diagrammo cost?

Diagrammo costs $14.99 per year. This includes all updates and new features released during your subscription.

Is there a free trial?

Yes. Diagrammo comes with a 14-day free trial — no credit card required. Download and start using it immediately.

What operating systems are supported?

Diagrammo is currently available for macOS 12 and later on Apple Silicon. Windows and Linux support is planned.

What diagram types can I create?

Diagrammo supports 26+ chart types including sequence diagrams, flowcharts, entity relationship diagrams, org charts, class diagrams, pie charts, bar charts, line charts, timelines, Sankey diagrams, Venn diagrams, and more.