Use AI to generate from a description, or build manually with nodes & links.
AI Flowchart Studio
AI Flowchart Studio is a free, browser-based AI flowchart generator that turns plain-language process notes into editable flowcharts, workflow diagrams, and system design visuals. No login required — describe the steps, decisions, branches, and outcomes, then use Gemini AI to create a diagram draft you can refine instead of starting from a blank canvas.
Unlike Lucidchart or Draw.io, there is nothing to install and no blank canvas to fill. Type your process in plain English and the AI generates the Mermaid flowchart code, renders it visually, and lets you click nodes to edit them. The app is useful when you need a quick text to flowchart workflow for product logic, support paths, onboarding, approval flows, technical architecture, or service dependency maps. Export the result as Mermaid code, SVG, or PNG in one click.
Turn a sentence, brief, SOP, or technical note into a structured first draft with process steps, decision nodes, and directional arrows.
Create workflow diagrams for onboarding, approvals, automation, incident response, procurement, and content operations.
Visualize services, dependencies, and system architecture with diagrams that are easy to explain in planning and review sessions.
Copy Mermaid code for README files, engineering docs, Notion pages, tickets, and architecture decision records.
Add nodes, connect links, label branches, adjust shapes, and keep control over the final structure after AI creates the first draft.
Download sharp SVG diagrams for documentation or PNG images for presentations, Slack, email, and product planning notes.
Product teams can map feature logic, activation funnels, checkout flows, and user journeys. Operations teams can document approvals, escalations, handoffs, and recurring business processes. Engineers can sketch API flows, authentication paths, data movement, microservice dependencies, and system design diagrams before moving them into permanent documentation. Read the full documentation to get the most out of the tool.
A strong prompt names the starting point, lists the main actions, explains every decision branch, and describes the final outcomes. For example, instead of asking for a login flow, describe what happens when the user is new, when credentials fail, when two-factor authentication is required, and when access is approved. The clearer the logic, the cleaner the generated Mermaid flowchart will be.
It turns natural language prompts into structured flowcharts, workflow diagrams, and system design diagrams without requiring manual diagram syntax.
Gemini AI helps interpret the prompt, infer the diagram structure, and produce a more accurate visual layout for complex processes and architecture ideas.
Yes. The app supports both workflow diagrams for process mapping and system design diagrams for technical architecture and service relationships.
Yes. The app is completely free. You need a free Google Gemini API key for AI generation, available at aistudio.google.com. The Manual Builder works without any key.
No account or login is required. Your API key is stored only in your browser's local storage and never sent to our servers.
You can export as Mermaid code (for GitHub, Notion, GitLab), SVG vector (for docs and design tools), or PNG raster (for slides and sharing). See the documentation for details.