✦ Free & browser-based

Sketch your
ideas into
flows.

Capture ideas, user journeys, and logic paths before they lose momentum.

Ideagram gives you just enough structure to turn rough thoughts into clear flows, without needing to know formal diagramming tools first.

Start decision? Path A Path B Continue →
Start decision? Continue →
✦ Just two building blocks
Enough to move from idea to diagram.

Most tools give you dozens of options before you've drawn a single connection. Ideagram keeps the model simple: two building blocks.

Action
Captures what happens: a step, task, screen, or event.
Choice
Captures where the path branches: a fork, decision, or condition.

Enough to make the idea visible now, while leaving room to refine it later.

✦ Philosophy
The power of Ideagram is not that it gives you more ways to diagram. It gives you fewer reasons to hesitate.
1
Open and go
No setup, no templates, no notation rules. Start with a node and keep moving.
2
Built for momentum
Quick-add, shortcuts, inline editing, and auto-layout keep the flow moving as fast as you think.
3
Flexible by design
Loops, rough branches, and unfinished ideas are welcome. Ideagram is a thinking tool, not a notation enforcer.
✦ Who it helps

For people who need to map flows quickly, without the weight of a full diagramming suite.

Solo builders
Map product flows, onboarding paths, and feature ideas before committing to a full design.
Developers
Sketch logic, edge cases, QA paths, and user flows without needing a full design suite.
Product engineers
Bridge technical thinking and product planning when the flow matters more than formal notation.
AI builders
Map agent flows, tool paths, fallback behavior, and decision logic.
Teachers & trainers
Explain branching ideas and step-by-step logic without formal diagramming rules.
✦ Why Ideagram exists
Not another heavy diagramming tool.

Most diagramming tools ask you to choose a notation, shape, template, or structure before your idea is even clear. Ideagram is built for the earlier moment, when you just need to get a flow, decision path, or interaction idea out of your head and onto the canvas.

Too much structure too early
Shapes, templates, rules
Notation decisions, shape libraries, and template choices before the flow is even clear.
→
Just enough structure
Actions, choices, visible flow
Two building blocks and flexible connections so the idea can take shape first.
✦ Export as

Take your flow with you.

JSON
PNG
SVG
PDF
Mermaid
Ready to sketch?

No install. No sign-up. Open the canvas and start sketching.

Open Ideagram →