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Code to Flow

A web tool where you paste code and AI turns it into an editable flowchart, sequence, class or user-journey diagram with an explanation, which you can export as PNG, SVG or PDF.

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What it does

Code to Flow takes code you paste in, in any popular language, and has an AI work out its structure and logic, then draws a diagram of it. Besides flowcharts it can produce sequence diagrams, class diagrams and user journeys, and it has an option to explain technical concepts. A written explanation appears beside the diagram. You can edit and customise the result, zoom in, copy it, and export it as PNG or SVG, with PDF listed among the features and a share link also offered. The site says more than 500,000 flowcharts have been generated and that your code is processed to make the diagram and then discarded, not stored or shared. It names developers debugging tricky logic, students learning concepts, teams explaining code in reviews, and people drawing diagrams for technical documentation as its audience. The free allowance is limited, and paid options remove the daily cap.

Capabilities

  • Turns pasted code into a flowchart, sequence diagram, class diagram or user journey
  • AI-written explanation shown alongside the diagram
  • Edit and customise the diagram after it is generated
  • Export as PNG, SVG or PDF, or share a link
  • Supports Python, JavaScript, TypeScript, Java, C, C++, Go, Rust and more

When to use it

  • You are trying to understand unfamiliar or tangled logic quickly
  • You are learning programming concepts and want to see them as diagrams
  • You need a diagram for documentation or to explain code in a review