Beauty Diagram is unclaimed —

Beauty Diagram

Your diagrams render fine. We make them beautiful.·beauty-diagram.com

Beauty Diagram is an online editor for Mermaid, PlantUML, and draw.io diagrams that re-lays out and re-styles rendered diagrams into presentation-ready SVG or PNG exports. Users paste diagram-as-code, preview it live, click Beautify to apply orthogonal routing, themes, and typography, then export or share via embeddable image links. It also offers AI-assisted diagram generation/refinement, a REST API, a CLI, and plugins for Obsidian and VS Code.

What it's for

Beautifying Mermaid flowcharts for decks and docsImproving PlantUML activity diagrams and swimlanesImporting and beautifying draw.io filesEmbedding diagram images into README files (GitHub, Notion, Medium)Generating diagrams from a plain-English prompt via AIRendering diagrams in CI/docs pipelinesRendering diagrams from agent/LLM pipelinesViewing beautified Mermaid diagrams inside Obsidian or VS Code

Features 20

4× PNG export without watermark (Pro)
5 animated SVG styles
9 swappable themes
AI generate/refine diagrams from a plain-English prompt
CJK-aware text layout for diagram labels
CLI (`bd` command) for extracting/rendering diagrams from Markdown
draw.io (.drawio/.xml) import parsed into Mermaid source (Pro)
Editorial-grade typography (Geist font, OpenType ligatures)
Embed diagrams via image URL into Markdown (README, docs)
Live preview while editing
Mermaid, PlantUML, and draw.io diagram editor
Node/line color and style customization via floating toolbar
Obsidian plugin for rendering Mermaid blocks
One-click beautify with re-layout and orthogonal routing
REST API for rendering and exporting diagrams
Shareable links with embeddable image URLs
Support for 14 diagram types
SVG and PNG export
Transparent background export
VS Code extension with beautified diagram previews

At a glance

free tierAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

Fordevelopers

CompanyBeauty Diagram

Integrations

GitHubNotionMediumObsidianVS CodeFigma

Resources

Docs

Pricing

Pro and Premium plan prices are not numerically stated on the supplied pages; only a monthly/yearly toggle with an 'Early Bird — Save 20%' promo and '2 months free' for yearly billing is shown. Pay-as-you-go credit packs (Starter $2.99, Project $12.99) are one-time purchases, not monthly subscriptions.

FreeFree

Free forever for occasional use

ProQuote

Monthly/yearly toggle shown on pricing page with 'Early Bird — Save 20%' and '2 months free' on yearly billing, but no numeric price is stated on the supplied pages.

PremiumQuote

No numeric price stated; required for signature themes which credits cannot unlock.

StarterQuote

$2.99 one-time purchase (pay as you go); credits expire 12 months after purchase.

30 credits: 30 HD exports or 6 AI runs or 3 save slots, mix freely

ProjectQuote

$12.99 one-time purchase (pay as you go); credits expire 12 months after purchase.

150 credits: 150 HD exports or 30 AI runs or 15 save slots, mix freely

Early Bird — Save 20% on yearly billing