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Catches dangerous database migrations before they hit production. Reviews schema changes for locking hazards, data loss, missing rollbacks, and index issues across PostgreSQL, MySQL, and SQLite.

Turn plain English app descriptions into fully normalized SQL schemas and entity relationship documentation.

A safe, expert-level database troubleshooter for fixing migrations, performance issues, and schema drift.

🗄️ SQL Migration Safety Doctor

by JustHandled Labs

$12

Catch the dangerous migration before it locks or wrecks your production database. Scans SQL migration files for destructive and risky operations: DROP and TRUNCATE, drops without IF EXISTS, lossy column-type changes, NOT NULL added without a default, DELETE or UPDATE with no WHERE, non-concurrent index builds, dropped constraints, renames, and data backfills mixed into schema changes. Each finding is ranked by severity with a safer rewrite. Postgres, MySQL, and SQLite.

PostgreSQL Schema Architect

by Arnstein Larsen

$9.99

Schema mistakes are the most expensive kind — code refactors in days, but a wrong table design holds your data hostage for years

Database Schema & Query Review Gate

by PubsProToolkit

Free

Review a database schema, queries, or migration for the mistakes that get expensive in production — bad table design, missing or wrong indexes, slow and N+1 queries, SQL injection, and migrations that lock or break prod. Engine-aware (PostgreSQL, MySQL, SQLite, SQL Server), it runs an ordered review and returns a PASS/REVIEW/BLOCK verdict with prioritized fixes. Schema mistakes are the most expensive kind — this catches them before they ship.

DB Migration Safety Reviewer

by Vivek K

$15

Review schema migrations for lock risk, data loss, backfill cost, and rolling-deploy breakage — get a verdict, safe rewrite, and deploy sequence.

Generate production-ready PostgreSQL schemas, RLS security policies, and TypeScript types for Supabase projects.

Automatically add database models to existing projects.