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Beauty Diagram

Beauty Diagram

Online Mermaid and PlantUML editor by Beauty Diagram that beautifies flowcharts and activity diagrams, with draw.io import on Pro, and exports presentation-ready SVG or PNG for docs, decks, and review

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Beauty Diagram Review

What is Beauty Diagram?

Beauty Diagram is an online editor for Mermaid, PlantUML, and draw.io diagrams that focuses on beautifying flowcharts and activity diagrams. It takes your existing diagram source code and re-renders it with presentation-grade styling, orthogonal routing, and modern typography. Users paste their code, preview it live, clean up the layout in one click, and export as SVG or PNG. It’s designed for anyone who needs version-controllable diagrams that look polished enough for slides, docs, or decks.

Application scenarios

  • Documentation

    Beautify Mermaid or PlantUML diagrams for technical docs, README files, or wikis without rewriting source code.

  • Presentations

    Export presentation-ready SVG or PNG diagrams with themes that match slide decks (modern, atlas, obsidian, atelier).

  • Code review

    Use animated SVG previews (layer, charge, laser, pulse) to clarify sequence and direction in flowcharts without modifying the source.

  • Team workflows

    Import draw.io files (Pro feature) and re-layout them with orthogonal routing for cleaner diagrams.

  • Dark-mode READMEs

    Switch themes to obsidian or atelier for diagrams that render well on dark backgrounds.

  • Rapid prototyping

    Paste Mermaid or PlantUML code, beautify in under 400ms, and export for immediate use in design reviews.

Core Features

  • Re-layout for flowcharts

    Mermaid, PlantUML, and draw.io flowcharts are re-laid out on a grid with orthogonal routing—no diagonal arrows cutting through nodes.

  • Themes you can swap

    Switch between modern, atlas, obsidian, and atelier themes without editing the source code.

  • Presentation-grade typography

    Uses Geist at 14px / 500 with OpenType ligatures and baseline-aligned labels for a slide-like appearance.

  • Soft shadows, not borders

    Replaces hard 1px strokes with layered shadows, giving nodes depth instead of a web-1.0 table look.

  • One-accent palette

    One purple accent with everything else grayscale—decision diamonds and branch points pop without competing for attention.

  • Animated SVG previews

    Apply layer, charge, laser, or pulse motion to the same Mermaid source to clarify sequence and direction without rewriting.

  • Export without watermark

    Export 4× PNG without watermark, plus SVG export for scalable diagrams.

  • Supports 9 diagram types

    Flowchart, Sequence, ER, Class, State, Gantt, Mindmap, Pie, and PlantUML activity diagrams.

  • Live preview

    Paste source and preview it live, with beautify completing in under 400ms.

  • draw.io import (Pro)

    Import draw.io files and beautify them with the same styling rules.

Target users

Technical writers, software engineers, product managers, and designers who need to produce clean, presentation-ready diagrams from Mermaid, PlantUML, or draw.io source code. It’s especially useful for anyone who wants version-controllable diagrams without manual drawing or per-diagram fiddling.

How to use Beauty Diagram?

Open the editor at beauty-diagram.com. Paste your Mermaid, PlantUML, or draw.io source code into the editor. The diagram renders live—click the beautify button to re-layout and re-style it in under 400ms. Switch themes, apply animated SVG previews, and export as SVG or 4× PNG without watermark. For draw.io import, you’ll need the Pro plan.

Pricing and free trial

The website text does not explicitly state pricing or free trial details. It mentions "draw.io import on Pro" as a feature, but no pricing tiers or costs are listed.

Effect review

Beauty Diagram solves a real pain point: default Mermaid and PlantUML renders often look rough for presentations or documentation. The tool’s one-click beautify with orthogonal routing, theme swapping, and animated previews gives users a polished output without rewriting source code. The focus on presentation-grade typography and soft shadows makes diagrams look like slide content rather than wiki pages. For teams that rely on version-controlled diagram code, this is a practical upgrade over native renderers—especially with the ability to export clean SVG or 4× PNG without watermarks.

Frequently Asked Questions

What is Beauty Diagram?
Beauty Diagram is an online editor for Mermaid and PlantUML that beautifies flowcharts and activity diagrams, with Pro features like draw.io import and export of presentation-ready SVG or PNG.
Is Beauty Diagram free to use?
Yes, Beauty Diagram offers a free version with core editing features. The Pro plan adds draw.io import and advanced export options.
What diagram types does Beauty Diagram support?
It supports Mermaid and PlantUML diagrams, including flowcharts and activity diagrams, with automatic beautification.
Can I import diagrams from draw.io?
Yes, draw.io import is available on the Pro plan, allowing you to edit and enhance existing diagrams.
What export formats are available?
You can export diagrams as SVG or PNG, optimized for presentations, documentation, and code reviews.
Is Beauty Diagram suitable for team collaboration?
While primarily a single-user editor, exported diagrams can be easily shared in docs and decks for team review.

Beauty Diagram - AI Tool Detail

Online Mermaid and PlantUML editor by Beauty Diagram that beautifies flowcharts and activity diagrams, with draw.io import on Pro, and exports presentation-ready SVG or PNG for docs, decks, and review

Category：Image editing

Visit Link：https://www.beauty-diagram.com/

Tags：Mermaid editor、PlantUML tool、flowchart beautifier、diagram export SVG、draw.io import