Start here
A few quick routes
These are the shortest paths if you already know what kind of page you want.
Sitemap hub
Browse the site by topic
Use this page when you want a quick way to move between the main public pages: the homepage, pricing, the diagram hub, guides, FAQ, diagram types, use cases, and comparisons.
It is a simple way to understand where each topic lives before you open the editor.
What you'll find
A clean map of the public site
The hub groups related pages together so the structure is easier to scan.
That makes it easier to move from a general topic into a specific guide, comparison, or use case.
Public pagesTopic familiesGuided entry
Diagram types
Diagram types
Start here when you want a specific diagram grammar, such as flowchart, sequence, Gantt, or PlantUML activity.
Mermaid Flowchart Syntax & Examples
A syntax reference for Mermaid's flowchart grammar — read this when you need to know the exact way to express a decision, loop, subgraph, or styled edge, then try the result in the editor.
Mermaid Sequence Diagram Syntax & Examples
A syntax reference for Mermaid's `sequenceDiagram` grammar — read this when you need the exact way to write a return arrow, an alt block, an activation, or a note, then try the result in the editor.
Mermaid Gantt Chart Syntax & Examples
A syntax reference for Mermaid's `gantt` grammar — read this when you need to know the exact way to declare a section, dependency, milestone, or excluded date range, then render the result in the editor.
Mermaid Mindmap Syntax & Examples
A syntax reference for Mermaid's `mindmap` grammar — read this when you need to know how indentation maps to hierarchy, how to pick a root shape, or how to add icons, then try the result in the editor.
PlantUML Activity Diagram Syntax & Examples
A syntax reference for the PlantUML activity-beta grammar — read this when you need to know exactly how a particular construct (decision, loop, lane, fork) is written, then beautify or edit the source in the editor.
PlantUML Swimlane Syntax & Examples
A syntax reference for PlantUML's swimlane lane syntax inside activity-beta diagrams — read this when you need to know how to declare a lane, tint it, or re-enter it later, then try the result in the editor.
Mermaid Class Diagram Syntax & Examples
A syntax reference for Mermaid's `classDiagram` grammar — read this when you need the exact notation for a relationship arrow, visibility modifier, or annotation, then try the result in the editor.
Mermaid State Diagram Syntax & Examples
A syntax reference for Mermaid's `stateDiagram-v2` grammar — read this when you need the exact way to express a transition, a composite state, a choice, or a parallel region, then try the result in the editor.
Mermaid ER Diagram Syntax & Examples
A syntax reference for Mermaid's `erDiagram` grammar — read this when you need the exact cardinality notation, attribute syntax, or relationship label format, then try the result in the editor.
Mermaid Pie Chart Syntax & Examples
A syntax reference for Mermaid's `pie` chart grammar — read this when you need the exact way to declare a title, toggle data display, or format slice values, then try the result in the editor.
Mermaid Git Graph Syntax & Examples
A syntax reference for Mermaid's `gitGraph` grammar — read this when you need the exact way to declare a commit, switch branches, merge with a tag, or pick a different layout orientation.
Use cases
Use cases
Use these pages when the search intent is about exporting, beautifying, or reusing diagrams in a real workflow.
Engineering documentation diagrams
A scenario page for engineering teams that keep diagrams close to code and need them to stay readable in docs.
Architecture review diagrams
A scenario page for teams presenting system boundaries, dependencies, and tradeoffs in architecture review meetings.
Product flow diagrams
A scenario page for product teams aligning on user journeys, states, handoffs, and edge cases.
API workflow diagrams
A scenario page for teams explaining integration behavior across clients, services, and external APIs.
Online diagram editor for Mermaid, PlantUML, and draw.io
A multi-source editor workflow for teams that need one place to paste, import, preview, beautify, and export diagrams online.
Presentation-ready diagrams
A scenario page for teams that need diagrams to look polished outside the editor, especially in slides and stakeholder docs.
draw.io cleanup for teams
A scenario page for teams with legacy draw.io diagrams that need cleaner presentation output and easier long-term maintenance.
Architecture diagrams for engineering teams
A scenario page for engineers, tech leads, and architects who keep architecture diagrams alongside code and need them to stay accurate without becoming visual noise.
Cross-team process flows
A scenario page for product managers, business analysts, ops, and SREs whose process diagrams need an explicit owner per column.
Comparisons
Comparisons
These pages help readers choose between formats or tools before they commit to an export path.
Beauty Diagram vs Mermaid Chart
A buyer-focused comparison for teams deciding between a quick, sleek, modern beautifier and a broader Mermaid-native collaboration workspace.
Beauty Diagram vs Eraser
A comparison for users choosing between a beautifier for existing diagram source and an AI-first developer diagramming workspace.
Beauty Diagram vs draw.io
A comparison for teams deciding whether they need a manual canvas or a fast beautifier after a draw.io or Mermaid diagram already exists.
Mermaid Chart alternative for polished exports
A page for Mermaid users who are not replacing their whole workflow, but need a faster way to beautify and export cleaner diagrams.
Mermaid vs PlantUML for diagram beautification
A comparison page that helps users choose the right source format before exporting visuals or starting a Mermaid vs PlantUML workflow.
Guides
Guides
Longer, instruction-style pages that answer practical questions and support the rest of the site.
Mermaid Looks Bad? 6 Quick Fixes (with Examples)
Use this checklist when a Mermaid diagram is technically correct but does not look as polished as the document, deck, or product page it sits inside. Each item below is a recognisable symptom, not a workflow step.
Render Mermaid diagrams online with live preview
A guide for users searching for Mermaid live preview, Mermaid render online, or an online Mermaid editor that also beautifies the final output.
Animated Mermaid Examples — 4 Motion Styles
A guide for using Beauty Diagram animation styles as a review and presentation layer on top of the same Mermaid source. Each example below maps an animation style to the kind of flow it helps the reader understand.
Export Mermaid as HD PNG
Use HD PNG when your Mermaid diagram needs to land in a slide deck, email, ticket, or tool that expects a regular image file.
Convert draw.io to Mermaid
Use this guide when a draw.io diagram should become easier to maintain as Mermaid source and cleaner to export for documentation.
Beautify PlantUML activity diagrams
Use this guide when a PlantUML activity diagram is accurate but too dense or plain for a review, handoff, or slide deck.
How to choose SVG vs PNG for diagrams
A guide for people who need a practical answer on vector vs raster diagram output.
How to improve PlantUML activity diagrams
A guide for process diagrams that need better structure, clearer branching, and easier presentation.
How to import a draw.io file into Mermaid
A guide for draw.io users who want to move onto a text-based, beautified Mermaid workflow.
How to beautify a draw.io diagram
A practical guide for making draw.io diagrams look polished enough for docs, decks, and reviews.
Mermaid Subgraph Examples — Copy-Paste Architecture
A practical walkthrough for engineers who want to express system architecture in plain Mermaid. Each section adds one syntax feature, so by the end of the page a three-tier platform diagram reads naturally and renders cleanly.
PlantUML Swimlane Syntax + Examples (Free Tool)
Use this guide when a PlantUML swimlane source already describes the right process but the default render looks vertical, plain, or cluttered.
Core pages
Common questions
What is Beauty Diagram?
Beauty Diagram is a fast diagram beautifier for Mermaid, PlantUML, draw.io imports, and SVG-based workflows. It helps turn source or imported diagrams into cleaner visuals for docs and decks.
Do I need to sign in to preview?
No. You can open the editor and preview a beautified diagram before signing in. Save, share, export, history, AI, and paid import features may depend on the current plan.
Is Beauty Diagram a replacement for draw.io or Lucidchart?
No. It is not a heavy collaborative canvas. It is best used as a fast finishing step for diagrams that need better spacing, themes, export quality, and lightweight tweaks.
What formats does Beauty Diagram support?
Beauty Diagram supports Mermaid, PlantUML, draw.io XML imports, and text-based SVG imports. Export workflows support SVG and PNG.
Does Beauty Diagram support Mermaid?
Yes. Mermaid is the primary source-first workflow for flowcharts and related diagrams that need cleaner presentation output.
Does Beauty Diagram support PlantUML?
Yes. PlantUML activity-style workflows can be pasted into the editor and beautified for review, documentation, and export.
Can I import draw.io files?
Yes. Supported single-page, uncompressed draw.io XML workflows can be imported and converted into a Mermaid-based beautification path.
Can I import SVG files?
Yes. Text-based SVG files under the product limit can be imported through the AI-assisted pipeline and used as a starting point for cleanup.
What does AI Generate do?
AI Generate turns a prompt into diagram source that can be previewed, edited, beautified, and exported.
What does AI Refine do?
AI Refine improves existing diagram source by cleaning labels, structure, or readability before the beautified visual is generated.
Does AI change the diagram meaning?
The intended workflow is to preserve meaning while improving clarity. You should still review the preview and source before exporting or sharing.
Can I export SVG?
Yes. SVG is the best default when diagrams need to stay sharp in documentation, websites, or browser-based previews.
Can I export HD PNG?
Yes. HD PNG export is available for slide decks, uploads, and destinations that need a raster image at higher resolution.
How do watermarks work?
Watermark behavior depends on the active plan and export option. Check pricing before planning production exports.
What is stored in Diagram Hub?
Signed-in users can store diagram source, format, folders, theme choices, style settings, and history so diagrams can be reopened later.
Does Beauty Diagram keep version history?
Yes. Saved workflows can preserve history so users can revisit earlier diagram states instead of rebuilding from scratch.
Can I share diagrams with a link?
Yes. Sharing workflows are designed around read-only links so collaborators can review a diagram without receiving private editor data.
Can I change themes?
Yes. Beauty Diagram supports multiple visual styles so the same diagram can be prepared for docs, decks, and product reviews.
Can I tweak the visual result manually?
Yes. The product supports light visual adjustments after beautification. It is still meant to stay faster than manual canvas redrawing.
What makes diagrams more presentation-ready?
Better hierarchy, clearer spacing, consistent edge styling, calmer themes, and export output that works in slides and documentation.
What features are paid?
Paid capabilities can include Pro imports, AI usage, HD exports, watermark removal, saved history, and sharing limits. The pricing page is the source of truth.
Can I try the editor before paying?
Yes. The preview workflow is designed to show the beautified result before users decide whether to sign in or pay for gated actions.
Where do I check limits?
Use the pricing page for current limits on exports, watermarks, AI, draw.io import, sharing, and history.
Is my diagram source used for training?
Do not assume diagram source is used for training. Treat the product UI and policy pages as the source of truth for current data handling commitments.
Can crawlers see my saved diagrams?
No. The public Diagram Hub landing page is indexable, but private saved diagrams only render for the signed-in owner.
Should I paste sensitive diagrams?
Review your team's data policy before pasting sensitive architecture, customer, or incident diagrams into any web-based editor.
What should I do if a diagram does not render correctly?
Check the source syntax first, simplify the smallest failing section, then retry beautification. For draw.io, prefer single-page uncompressed XML.
Why might a public page take time to be indexed?
Fresh pages need crawl discovery, internal links, and enough useful content before search engines treat them as worth indexing.
Why is the workspace editor path not indexed?
The editor is an interactive app surface, while public SEO pages explain workflows. Keeping app surfaces out of search protects crawl quality.
Diagram hub
The best place to start if you want the public content map in one page.
Guides
Longer workflow explanations for people who want step-by-step help.
Open Editor
Jump into the workspace once you know what you want to build.