Free live Mermaid diagram editor with no signup required
Animated React and Tailwind components for Next.js, Vite and AI coding assistants
Stage
Not given
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Founded
Not given
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Based in
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US
Pricing model
Free
Paid
Pricing
Not given
Individual components: $3 each. The Shelf: $29 for all 17 paid pieces, one-time payment. Pro Lifetime: $69 one-time (pre-launch price; $89 after November 12, 2026), includes all current and future pieces, at least 8 new pieces by January 31, 2027 or $40 refunded.
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
React and TypeScript components with Tailwind CSS
Framer Motion animations on most components
Next.js App Router ready with use client included
PROMPT.md file with Cursor, v0 and Lovable prompts
Plain HTML version included in every zip
Tested in Next.js 15 with Tailwind v4 and Vite
Live preview before purchase
23 total components available
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
Components come with full clean, commented source code ready to paste in
Each component includes prompts to hand to AI coding assistants for fitting into your project
Usable in personal and client projects with no resale restrictions on the work itself
Affordable one-time payment with no subscription required
Pro Lifetime includes all future releases up to January 31, 2027 with money-back guarantee
FlowViz
qodesign