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Why Choose SimplyUtils over mermaid.live
While mermaid.live is the official Mermaid editor, SimplyUtils goes
further with AI-powered diagram generation and syntax fixing. Describe
your diagram in plain English and get working code instantly. We also
offer 12 built-in templates (vs 3), zoom and pan controls, fullscreen
preview, undo/redo, and 5 theme options. All rendering happens
client-side with no data sent to any server.
Why Choose SimplyUtils over draw.io
draw.io (diagrams.net) is a powerful drag-and-drop diagramming tool,
but it can be slow for quick diagrams and doesn't support text-based
Mermaid syntax. SimplyUtils lets you create and iterate on diagrams
much faster with code, and our AI generation means you don't even
need to know the syntax — just describe what you want. Share
diagrams via URL without creating accounts or saving files.
Why Choose SimplyUtils over Lucidchart
Lucidchart is a premium diagramming tool that requires sign-up and
locks AI features and exports behind a paywall. SimplyUtils gives you
free AI diagram generation, free SVG and PNG exports, and shareable
URLs — no account required. For developers who prefer code-based
diagrams, our Mermaid editor is faster and more lightweight.
What is Mermaid?
Mermaid is an open-source JavaScript library that renders diagrams
from text-based definitions. It's widely used in documentation
platforms like GitHub, GitLab, Notion, and Obsidian. Instead of
dragging and dropping shapes, you write simple text like
A --> B and Mermaid turns it into a visual diagram.
Supported Diagram Types
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Flowcharts — process flows, decision trees, and
workflows
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Sequence diagrams — API calls, message flows, and
system interactions
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Class diagrams — object-oriented design and UML
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State diagrams — state machines and lifecycle flows
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ER diagrams — database schemas and relationships
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Gantt charts — project timelines and scheduling
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Pie charts — data distribution and percentages
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Mind maps — brainstorming and idea organization
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Git graphs — branch, merge, and commit visualization
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User journeys — user experience and workflow mapping
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Quadrant charts — priority matrices and comparisons
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Timelines — historical events and milestones
Tips for Better Diagrams
- Start with a template or use AI generation and modify from there
- Use descriptive labels on nodes and edges for clarity
- Keep diagrams focused — split large ones into multiple smaller diagrams
- Use subgraphs in flowcharts to group related nodes
- Try different themes to match your presentation style
- Export as SVG for documents and PNG for presentations
- Share your diagram via URL for quick collaboration
Whether you're documenting an API flow, designing a database schema,
or planning a project timeline, SimplyUtils Mermaid Editor gives you
everything you need — AI generation, live preview, zoom and pan,
shareable URLs, and free exports. No sign-up, no paywall.