Database Schema Designer

This walks you through schema design from requirements to production-ready SQL or NoSQL. You describe your data model (e-commerce platform, SaaS app, whatever) and get normalized tables, foreign key constraints, indexing strategy, and reversible migrations. The real value is in the opinionated defaults: it indexes foreign keys automatically, enforces 3NF unless you have a reason not to, uses DECIMAL for money instead of FLOAT, and won't let you ship a migration without a rollback plan. The anti-patterns section alone (no VARCHAR(255) everywhere, no dates as strings) is worth keeping open during code review. Best for greenfield projects or when you're refactoring a schema that grew organically and now has orphaned records everywhere.