Beauty Diagram
Mermaid and PlantUML diagram beautifier with live editing and export
What is Beauty Diagram?
Beauty Diagram is an Image Editing tool. Mermaid and PlantUML diagram beautifier with live editing and export. Beauty Diagram is a paid tool. It is available on Web App. It is aimed at developers and technical writers.
Mermaid online live editor that beautifies flowcharts and activity diagrams. Supports PlantUML and draw.io. Offers live preview, one-click beautify, and clean SVG/HD PNG export.
Built for developers and technical writers.
Features
Live Preview
One-Click Beautify
Automatically enhances diagram aesthetics
Clean Export
Exports diagrams in SVG and HD PNG formats
Use cases
- Beautify Mermaid flowcharts with live editing
- Enhance PlantUML activity diagrams
- Export diagrams in SVG and HD PNG formats
Who it's for
- Developers
- Technical Writers
Pros & cons
Pros
- Public API available
- Usage-based pricing with credit system
- Integrates with GitHub, GitLab, Jira, Confluence, VS Code, Obsidian
Cons
- No free plan available
- Rate limited by IP for anonymous users
Pricing
Paid.
| Plan | Price |
|---|---|
| Pro | $7.99 |
| Starter | $2.99 |
Developer & API
Public REST API available
- Authentication
- API Key, Bearer Token
- SDKs
- -g
FAQ
What is Beauty Diagram?
Beauty Diagram is an Image Editing tool. Mermaid and PlantUML diagram beautifier with live editing and export. Mermaid online live editor that beautifies flowcharts and activity diagrams. Supports PlantUML and draw.io. Offers live preview, one-click beautify, and clean SVG/HD PNG export.
Is Beauty Diagram free?
No, Beauty Diagram is a paid tool.
How much does Beauty Diagram cost?
Beauty Diagram offers 2 plans: Pro ($7.99) and Starter ($2.99).
Does Beauty Diagram have an API?
Yes, Beauty Diagram offers a public REST API for building custom integrations.
What platforms does Beauty Diagram support?
Beauty Diagram is available on Web App.
Who should use Beauty Diagram?
Beauty Diagram is built for developers and technical writers. Common uses: beautify Mermaid flowcharts with live editing, enhance PlantUML activity diagrams and export diagrams in SVG and HD PNG formats.
What does Beauty Diagram integrate with?
Beauty Diagram integrates with GitHub, GitLab, Jira, Confluence, VS Code and Obsidian.
What are the best alternatives to Beauty Diagram?
Similar tools on AiByts include FontVibe, DeepAI, YouCam Makeup, Artflow and Craiyon.
Beauty Diagram news & updates
Which Tools Support Mermaid Natively? A Checked List
GitHub, GitLab, Notion, Obsidian, VS Code and Azure DevOps render Mermaid natively. Confluence, Slack and Google Docs do not. Every row checked against the vendor's own documentation.
Beauty Diagram Blog9 min readAuto-Generate Architecture Diagrams in CI from Your Spec Files
Your architecture diagram is wrong because it's a hand-maintained copy of the system. Here's how to make it a projection instead — generated from files CI already keeps honest.
Beauty Diagram Blog12 min readDiagrams as Code in 2026: Mermaid, PlantUML, D2, Excalidraw — When to Use What
Four diagrams-as-code tools are worth learning in 2026. Each is best at a different job — a comparison, plus the honest tradeoffs nobody puts on the marketing page.
Beauty Diagram Blog12 min readConvert draw.io Files to Production-Ready SVG (Without the Default Look)
draw.io's Export → SVG dialog ships a 400 KB blob of embedded fonts and foreign-object text. The path from cleaner native exports to treating the .drawio XML as source and re-rendering it.
Beauty Diagram Blog12 min readAdding Beautiful Diagrams to Your Docusaurus / VitePress Site
Enabling Mermaid in Docusaurus or VitePress takes ten minutes. Making the diagrams stop looking generic takes another thirty. The whole path — plugin config, theming, and when to swap the renderer.
Beauty Diagram Blog9 min read10 Mermaid Tricks I Wish I'd Known Before Drawing 200 Diagrams
Most Mermaid users plateau after the basics. These 10 tricks — subgraph zones, classDef inheritance, edge label styling, init blocks — pay back every time you open a fenced mermaid block.
Beauty Diagram Blog9 min readHow to Beautify and Theme Mermaid Diagrams in Obsidian & VS Code
The default pastel preview undermines the note you're polishing. Two plugins put a themed Mermaid renderer in the same pane — no round-trip to a web tool. Setup for both, plus the per-file options.
Beauty Diagram Blog9 min readBeautify Every Diagram in Your Markdown Docs with One Command
A docs repo has dozens of Mermaid blocks, half on the default pastel theme, some broken. Two commands plus a CI gate render them all to one consistent theme — and keep them that way.
Beauty Diagram Blog10 min readGenerate Mermaid from Plain English with AI (CLI Walkthrough)
Most Mermaid friction isn't writing flowcharts — it's remembering syntax for sequence, ER, state, and class diagrams you draw twice a year. Five prompts, five diagrams, one CLI pipe.
Beauty Diagram Blog10 min readMermaid vs PlantUML in 2026: Which to Pick for Engineering Docs
Mermaid and PlantUML solve the same problem with different trade-offs. Here's a 2026 comparison on syntax, layout quality, diagram coverage, and ecosystem — with a decision rule at the end.
Beauty Diagram Blog9 min readDoes Notion Support Mermaid? Yes — 4 Ways to Embed and Theme It
Yes — Notion renders Mermaid natively in code blocks, but with one fixed theme and no overrides. Compare the 4 ways to embed and theme Mermaid in Notion in 2026.
Beauty Diagram Blog9 min readWhy Your GitHub README Diagrams Look Amateur (and the 4 Fixes That Take 10 Minutes)
Most README diagrams suffer from the same four defaults. Here's how to fix all of them in under ten minutes — without redrawing anything.
Beauty Diagram Blog2 min readHow to Render Mermaid Diagrams as SVG (and Stop Looking Like Every Other README)
A practical guide to rendering Mermaid as SVG — from the official CLI to custom themes, font fixes, dark mode, and the fastest path when you don't want to tune anything.
Beauty Diagram Blog5 min read
Details are compiled from Beauty Diagram's website and public sources, last verified Oct 5, 2026. Features and pricing change — confirm on the official site before you buy.
Try Beauty Diagram
Paid
Tags
- Mermaid Live Editor
- PlantUML Editor
- Diagram Beautifier
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