Hi Product Hunt! I'm the maker of ERD Online. Here's why I built it: The Problem Existing database design tools force a trade-off: - dbdiagram: pretty but closed, no versioning, no AI integration - Navicat/PDManer: powerful but heavy, desktop-only, no AI integration - drawio: free but doesn't understand databases, no AI integration The Solution ERD Online is Git + Figma for database design, with MCP for AI agents: - Versioning: Every save creates a version you can diff and rollback. Treat schema like Git treats code. - Collaboration: Real-time multiplayer editing (like Figma) - MCP Integration: AI agents (Cursor, Claude, Cline) can read your schema via MCP and suggest changes via create_version. You still diff and approve in the designer. The key boundary: AI agents read/write the same projectJSON the canvas uses. No black-box magic. You stay in control. Try it now (no signup): https://www.erdonline.com/demo GitHub: https://github.com/erdonline/erd... (MIT license) What I'd love feedback on: 1. The versioning approach (Git-like snapshots + diff) 2. The MCP integration (AI agents as first-class citizens) 3. What features would make this a must-have for your team? Thanks for checking it out!