Flow Canvas

Create visual flow diagrams by clicking anywhere on canvas. Auto-detects keywords and styles nodes. Drag to connect nodes and build flowcharts.

Features

• Click to add nodes; drag to connect with lines
• Keywords (e.g. API, database, user) get automatic styling
• No formal syntax; ideal for quick sketches
• Export or share diagram
• Great for architecture or process flows

Why use this tool

Sketch a flow or architecture without learning diagram syntax. Faster than opening a heavy app; good for standups or docs.

Try it

Try Flow Canvas at Spoold →

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More from Spoold

Spoold is a free developer toolbox that detects what you paste and opens the right tool.

• No sign-up – Use every tool without an account.
• Runs in your browser – Your data stays on your device; we don’t store or log your input.
• Paste and go – Paste JSON, HTML, JWT, curl, Base64, or any text on the homepage and Spoold suggests the right tool.
• One place for many tools – JSON formatter, JWT decoder, Base64, UUID generator, regex tester, curl-to-code, and more.

Open Spoold →