Free live Mermaid diagram editor with no signup required
Business chart maker for PowerPoint and Google Slides with AI-powered customization
Stage
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Pricing model
Free
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Pricing
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Free plan includes all advanced chart types with limited AI chat and watermarked exports. Pro plan is $10/month billed yearly ($120/year) with PNG, JPEG, transparent PNG, SVG, and MP4 exports without watermark, unlimited AI chat, and cloud saving. Team plan is $40/month for 5 seats billed yearly wit
Key features
Live preview as you type
21 diagram types including flowcharts, sequence, class, state, ER, Gantt, git graph, mindmap and timeline
Two-way editing for flowcharts
SVG and PNG export
Share diagrams as URLs with embedded diagram content
Built-in template picker and cheatsheet
No account or signup required
Works entirely in browser with local storage
Open Mermaid Live Editor links
Mermaid v11 syntax support
Waterfall, Mekko, Gantt, and scatter charts
AI-assisted chart styling and editing
Import data from Excel, Google Sheets, and CSV
Export to PNG, JPEG, SVG, and MP4
Direct insertion into PowerPoint and Google Slides
Brand controls for fonts, colors, and styling
Automatic data-linked annotations
Shared brand kit for teams
Premium templates
What makes it different
No signup, paywall, or data collection required
Diagrams stay in your browser's local storage by default
Two-way editing that updates code when you edit the canvas
Live preview with no render button required
Clean SVG export for professional use in docs and slides
Advanced chart types not available in PowerPoint or Excel
AI-powered customization instead of manual editing
FlowViz