Beauty Diagram
Guide

Make Mermaid diagrams look better

A practical workflow for turning cramped Mermaid diagrams into cleaner visuals with better spacing, themes, AI refine, and export-ready output.

Follow the workflow, open the example in the editor, then export or save the cleaner result.

At a glance

Use this guide when a Mermaid diagram is technically correct but too cramped or plain for docs, slides, or stakeholder review.

Start with the main reading pathBeautify before manual tweakingUse live preview, themes, and motion as review toolsUse AI refine carefullyExport based on destination
Rendered proof
A Mermaid flowchart that becomes easier to present after branch spacing and visual hierarchy improve.
Theme · Atelier
Open this diagram in editor
No Yes Yes No ↺ User submits form DECISION Valid input? Create record Show validation errors DECISION Paymentrequired? Collect payment Send confirmation
View Mermaid sourcePlain-text diagram syntax — copy or edit directly.
diagram.mmd
1flowchart TD
2  A[User submits form] --> B{Valid input?}
3  B -- Yes --> C[Create record]
4  B -- No --> D[Show validation errors]
5  C --> E{Payment required?}
6  E -- Yes --> F[Collect payment]
7  E -- No --> G[Send confirmation]
8  F --> G
9  D --> A
Pre-rendered examples

Theme and animation variants

Rendered proof
The same Mermaid diagram in a documentation-friendly Atlas theme.
Theme · Atlas
Open variant in editor
No Yes Yes No ↺ User submitsform DECISION Valid input? Create record Show validationerrors DECISION Paymentrequired? Collect payment Sendconfirmation
Rendered proof
The same Mermaid diagram in an editorial Atelier theme.
Theme · Atelier
Open variant in editor
No Yes Yes No ↺ User submits form DECISION Valid input? Create record Show validation errors DECISION Paymentrequired? Collect payment Send confirmation
Rendered proof
The same Mermaid diagram with Pulse animation for directional review.
Theme · ModernAnimation · pulse
Open variant in editor
No Yes Yes No ↺ User submitsform Valid input? Create record Show validationerrors Paymentrequired? Collect payment Sendconfirmation

Start with the main reading path

Most Mermaid diagrams look worse when every branch competes equally. Identify the main path first, then let secondary branches support it.

  • Keep node labels short
  • Make decision outcomes explicit
  • Separate retries, errors, and alternate paths

Beautify before manual tweaking

Paste the Mermaid source into Beauty Diagram, preview the beautified result, then adjust theme and light visual settings only after the structure reads clearly.

Use live preview, themes, and motion as review tools

The editor is useful before export because it shows the rendered diagram, lets you compare visual themes, and can apply animation styles when motion helps explain a flow.

  • Preview the Mermaid diagram online before sharing
  • Compare multiple themes without changing the source
  • Use animation only when it clarifies sequence or direction

Use AI refine carefully

AI Refine is useful for cleaning labels and simplifying noisy source, but the preview should always be reviewed before export so the diagram meaning stays intact.

Export based on destination

Use SVG for docs and websites. Use HD PNG for slides, image uploads, and tools that expect raster files.

Guide FAQ

Questions about this workflow

Will Beauty Diagram change my Mermaid meaning?

The beautification workflow is designed to preserve meaning while improving layout and visual presentation.

Can I use this for docs?

Yes. SVG output is usually the best choice for documentation because it stays sharp at different sizes.

Can AI help improve labels?

Yes. AI Refine can clean labels or source structure, but you should review the preview before exporting.