Diagram Generator
Create flowcharts, sequence diagrams, mind maps, timelines, Gantt charts and ER diagrams from editable Mermaid text. Export SVG or PNG.
Mermaid text
Edit the example using Mermaid syntax. Maximum 12,000 characters.
Choose a type, edit the example, then generate.
Unlimited diagrams, no login. Mermaid runs in your browser; the diagram text is not sent to our backend. Download the Mermaid file to keep an editable copy.
Continue your research in AnswerThis
Create the visual here, then use AnswerThis to find and work with the research behind it.
How to use Diagram Generator
- Choose a diagram type and edit the Mermaid example.
- Generate a preview and correct any syntax errors.
- Review every label and connection, then download SVG, PNG or Mermaid text.
What to check
- Confirm the direction and meaning of every arrow.
- Keep labels short enough to remain readable.
- Use SVG for scalable publication artwork and keep Mermaid text for later editing.
Supported diagram types
The first release supports Mermaid flowcharts, sequence diagrams, mind maps, timelines, Gantt charts and entity relationship diagrams. Mermaid syntax is editable, so the result remains reproducible rather than becoming a flat AI image.
Privacy and limitations
Rendering happens in the browser and no diagram text is sent to our backend. This tool validates syntax and draws the definition; it does not verify that a process, relationship or schedule is factually correct.
Frequently asked questions
Is this diagram generator free?
Yes. Diagram generation and SVG, PNG and Mermaid downloads are unlimited without login.
Can I edit the diagram?
Edit the Mermaid text and generate again. Download the .mmd file to retain the editable source.
Does this use AI?
No. The first release renders the Mermaid definition deterministically in your browser.