Diagram architectures on an infinite canvas

Sketch a system on a canvas that keeps going: boxes, arrows, containers and the shape packs for the platforms you actually work with. It is the page to reach for when a design needs to be explained in a diagram rather than a paragraph.

DrawFlows — Diagram architectures on an infinite canvas with 230+ shape packs. (infinite canvas)

What it does

• 230+ shape packs — Community shape packs for real architectures, loaded on demand from jsDelivr, so a diagram reads as the platform it describes instead of generic rectangles.
• An infinite canvas — Zoom out to see the whole system or in to line up a detail, without the drawing hitting a page edge.
• Runs in the tab — The canvas is rendered on your device, and drawings are saved locally — no account, no share URL, nothing published to a diagram service. An AI action sends the board as text to the AI provider you chose, only when you use it.

What it does not do

It is a diagramming canvas, not a data-modelling or cloud-provisioning tool: the drawing documents a system, it does not create one.

InTab is free and runs in this browser tab. There is no account, no sign-up and no login screen. Requests leave the tab when you start them — an AI prompt to the provider you chose (including the AI actions in each tool, which send the content they name), an API call, a web search, or an optional encrypted backup to your own Google Drive or OneDrive. Read the privacy policy for what each of those sends, and where.

Other tools in InTab

• Agents — Stream AI answers from top models with your own API key.
• Compiler — Run JavaScript, TypeScript, Python, SQL and Lua in a sandbox, and preview HTML.
• Formatters — Prettify and validate JSON and XML with inline error locations.
• Converter — Convert images, documents, spreadsheets, data and archives without uploading them.
• Diff Check — Compare files side-by-side or inline with whitespace controls.
• Comparators — Audit .env files, JSON, and text lists for missing, extra and changed keys.
• API Tester — Send REST, GraphQL, and WebSocket requests directly from your tab.
• Library — Search 148 bundled ServiceNow APIs and their 1046 documented methods.