Mermaid Viewer vs drawDB

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Mermaid Viewer compared with drawDB
Detail	Mermaid Viewer	drawDB
What it does	Free online Mermaid diagram viewer and editor with live preview, AI generation, and exports	Free online database schema design tool for ER diagrams and SQL generation
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: unlimited editor and preview, 3 saved diagrams, 5 AI uses total, PNG export 1× with watermark. Starter: $6.99/month or $69.90/year; 30 saved diagrams, 500 AI conversations per month, PNG export up to 4× without watermark. Pro: $11.99/month or $119.90/year; unlimited diagrams, unlimited AI, PNG	Free tier includes the open-source editor with all SQL dialects, import & export, and local diagram storage. drawDB Pro offers paid plans for Solo Pro and Team Pro with cloud storage, real-time collaboration, AI schema assistant, GitHub integration, and priority support.
Key features	Live preview of Mermaid code as you type AI diagram generator, editor and syntax fixer PNG export on every plan; JPG, SVG and PDF on Pro All 22+ Mermaid diagram types supported Share diagrams via public links and embeds Save diagrams to cloud with folders and version history Keyboard shortcuts and autocomplete Mobile-responsive editor with pan and pinch-zoom	Entity-relationship diagram editor SQL generation for PostgreSQL, MySQL, SQLite, MariaDB, SQL Server, and Oracle DBML import and export Real-time collaborative database design Cloud storage and team workspaces AI-assisted schema design Schema reverse engineering from existing SQL Version history and migration generation Export to SQL, JSON, PNG, JPEG, SVG, and PDF Keyboard shortcuts and customizable workspace
What makes it different	No account or sign-up required to start editing diagrams Affordable pricing: Starter at $6.99/month, Pro at $11.99/month Diagrams render in your browser; nothing stored unless you choose to save Fast editor with instant rendering and clear error messages	Free and open source with no account required to start designing Supports all major SQL dialects in one tool Self-hostable on your own infrastructure with Docker Real-time team collaboration with shared cursors and presence
Community votes	0	0
DR (Domain Rating by Ahrefs)	6 +1 (up) since last check	46 no change since last check
Trust Flow (Majestic)	3	10
Citation Flow (Majestic)	23	33
Referring domains (Majestic)	12	526

5 details filled in for both companies.

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