Hey everyone! 👋 I'm Matheus, solo founder of ERFlow. I spent years watching developers jump between 3-4 tools just to design and validate a database: a diagramming tool, a text editor for SQL, a database client, and maybe a migration generator. It never made sense to me. Designing a database schema shouldn't require all that friction. So I built ERFlow — a visual database modeler where you literally click to add tables, define typed columns inline, and drag to draw relationships. It feels like designing, not coding. No other tool makes schema creation this fast. But the feature I'm most excited about is the MCP Server. If you use Cursor, Windsurf, or Claude Code, your AI assistant can connect to your ERFlow diagram and actually understand your schema. It can create tables, add foreign keys, generate migrations — all through natural language. You watch the canvas update in real-time as the AI works. It's not autocomplete. It's a co-designer that understands relational semantics. And when you're ready to validate, connect directly to your PostgreSQL, MySQL, or SQLite database and run queries right inside the tool. Design → validate → ship, all in one place. We also include real-time collaboration, schema versioning with checkpoint diffing, and migration generation for Laravel and Phinx. Free to start, and I'm building this full-time. Would love your feedback — what's the first thing you'd want to try?

ER Flow

Click to design your database. AI to build. MCP to connect.

Click to design your database. AI to build. MCP to connect.