Question 1

Is Mermalaid really free?

Accepted Answer

Yes, Mermalaid is 100% free with no hidden costs, no premium tiers, and no usage limits. Create unlimited Mermaid diagrams without ever paying a cent. The project is open source under the CC BY-NC-SA 4.0 license.

Question 2

Do I need to create an account to use Mermalaid?

Accepted Answer

No. Mermalaid requires zero sign-up. Just open the editor and start creating diagrams immediately. Your work is saved locally in your browser.

Question 3

What types of Mermaid diagrams can I create?

Accepted Answer

Mermalaid supports all Mermaid.js diagram types including flowcharts, sequence diagrams, class diagrams, state diagrams, entity relationship diagrams, Gantt charts, pie charts, git graphs, user journeys, mindmaps, and more.

Question 4

Can I export my diagrams?

Accepted Answer

Yes. Export your diagrams as SVG (scalable vector graphics) for crisp rendering at any size, or PNG for raster images. You can also copy the raw Mermaid code to your clipboard with markdown formatting.

Question 5

What is the visual editor?

Accepted Answer

The visual editor lets you edit flowcharts by dragging and dropping nodes, drawing connections between them, and double-clicking to edit labels. Changes are automatically synced back to the Mermaid code.

Question 6

Is Mermalaid open source?

Accepted Answer

Yes. Mermalaid is fully open source and available on GitHub. You can inspect the code, contribute improvements, or fork the project.

Question 7

What is Mermaid.js?

Accepted Answer

Mermaid.js is a JavaScript library that lets you create diagrams and charts from text-based definitions, similar to Markdown. Instead of using a drag-and-drop tool, you write simple text that gets rendered into professional diagrams. Mermalaid provides the best free editor for writing and previewing Mermaid syntax.

Question 8

Does Mermalaid work offline?

Accepted Answer

Mermalaid is available as a lightweight native macOS desktop app built with Tauri. The desktop version is under 10MB and works completely offline.