Code to Flow

Code to Flow is a browser tool that turns source code into visual diagrams. A developer pastes a snippet, the AI parses its structure and logic, and the tool produces an interactive flowchart alongside a written explanation of what the code does. Results can be edited and exported as PNG, SVG or PDF, or shared as a link. The tool serves developers debugging unfamiliar logic, students learning programming concepts, teams explaining code during reviews and writers producing diagrams for technical documentation. It supports the popular languages, including Python, JavaScript, TypeScript, Java, C, C++, Go and Rust. Beyond flowcharts it can produce sequence diagrams, class diagrams and user journey diagrams, and it can explain technical concepts visually. The vendor states that submitted code is processed to generate the diagram and is never stored. The free tier allows up to 3 flowcharts per day. Paid options are published on the upgrade page. Starter is a one time payment of $26.99 for 1,000 visualizations that never expire, with AI explanations, an 8k token code capacity, flowchart editing and no ads. Unlimited Lifetime Access is a one time payment of $66.99 for unlimited visualizations, an advanced AI optimization suite and priority feature requests. The Monthly Pro Subscription costs $9.99 per month for unlimited monthly visualizations and early access to new features, and can be cancelled at any time. Payments run through LemonSqueezy, and the vendor states that it does not offer refunds because of the running cost of its AI models.