Built for software engineers

A fast whiteboard for developer diagrams

Sketch system architecture, API flows, UI flows, and technical plans on one canvas.

Made for backend developers, frontend developers, and system architects.

Draw nodes. Connect flows. Organize before coding.

How it works

Draw, connect, organize

Build the diagram in a clear sequence so system intent is visible before implementation starts.

Step 1

Add boxes for services, endpoints, UI screens, or data stores.

Start with structure first, then layer flows and dependencies.

Step 2

Link requests, responses, dependencies, and decision paths.

Step 3

Move, rename, and group parts of the diagram before coding.

Use cases

Use one canvas for architecture, APIs, and delivery planning without switching between disconnected docs.

Primary use case

Sketch service boundaries, data stores, queues, and integration points.

Map endpoints, payload flow, auth checks, and error responses.

Visualize backend and frontend structure before implementation starts.

Split complex features into states, dependencies, and technical tasks.

Features

A focused toolset for fast visual planning across backend, frontend, and API workflows.

Action

Place nodes quickly and adjust layout with direct drag actions.

Flow

Draw clear links between services, endpoints, and UI states.

Action

Rename and reorganize elements without leaving the canvas.

Flow

Export diagrams and share them with your team in seconds.