Got Mermaid code from ChatGPT? Paste it in the editor above to render it instantly. Edit the diagram, customize the theme, and export as high-resolution PNG, SVG, or PDF. Free, no login required.
Prompt ChatGPT with "Create a mermaid diagram for [your topic]." Copy the code block from the response.
Paste the code in the editor above. Your diagram renders instantly with real-time preview.
Click Export to download as PNG, SVG, or PDF. Choose up to 4K resolution for crisp output.
Mermaid is a text-based diagramming language. Instead of dragging and dropping shapes, you write simple text that describes the diagram — and it renders automatically. ChatGPT is particularly good at generating Mermaid code because it's concise and structured.
When ChatGPT gives you a code block starting with flowchart, sequenceDiagram, erDiagram, or similar — that's Mermaid code. Copy the entire block (without the ``` markers) and paste it in the editor above.
Copy these prompts into ChatGPT to generate Mermaid diagrams. Then paste the output in the editor above.
“Create a mermaid flowchart showing the user signup process with email verification”
“Create a mermaid sequence diagram showing how a REST API handles authentication with JWT tokens”
“Create a mermaid ER diagram for an e-commerce database with users, orders, products, and reviews”
“Create a mermaid mindmap for project management methodology covering agile, scrum, and kanban”
ChatGPT can generate Mermaid code for all of these diagram types. Mermaid Editor renders and exports all of them.
ChatGPT generates the code — Mermaid Editor makes it look professional and gives you export options.
Theme presets
Tokyo Night, Dracula, Nord, and more. One click to transform the look of any diagram.
High-resolution export
Up to 8x scale (768 DPI) for print-quality output. PNG, SVG, and PDF formats.
Full code editor
Syntax highlighting, autocomplete, error markers, and code folding. Edit ChatGPT's output to get it exactly right.
No login required
Paste and go. No account, no signup, no friction. Your data stays in your browser.
Paste your ChatGPT code in the editor above, then export in high resolution.
Export your diagrams at up to 8x scale (768 DPI) for print and 4K displays.
Quick-paste editor for rendering mermaid code from any source.
Learn Mermaid flowchart syntax with interactive examples.
Master entity-relationship diagrams with Mermaid syntax.
Download diagrams as high-resolution PNG images.
New to Mermaid? Learn the basics and create your first diagram.