Connect ideas naturally
Drag from any side of a note to create clear relationships that stay attached as your diagram changes.
Private, local-first diagramming
Map ideas, processes, and plans on a focused visual canvas. Start immediately, save locally, and export without creating an account.
A faster visual workflow
DiagramLab keeps the interface small so you can spend less time configuring tools and more time connecting ideas.
Drag from any side of a note to create clear relationships that stay attached as your diagram changes.
Edit titles and details in place, then move, resize, zoom, and arrange everything without leaving your flow.
Create PNG and SVG images for sharing, or keep editable JSON backups that you control.
From blank canvas to useful map
Create steps, ideas, decisions, or topics directly on the canvas.
Connect note handles to reveal sequence, dependency, and context.
Refine the layout and export a shareable image or editable backup.
Private by default
DiagramLab saves your work in the current browser instead of an application database. There is no account requirement and no cloud copy of your notes.
Read the privacy detailsStart with one idea
Open the editor and make your first diagram—no setup required.
Open DiagramLab