Postgres Migration Safety Checker

Preflight unsafe PostgreSQL migrations for locks and blocking DDL.

Avoid downtime from a risky migration. Preflight PostgreSQL migrations to flag table locks, full rewrites, and blocking DDL, with zero-downtime risk analysis and safer alternatives — before you run them in production.

  • Detect table locks and full table rewrites
  • Flag blocking DDL statements
  • Zero-downtime risk analysis
  • Suggested safer migration patterns
  • Browser-based preflight check
chayprabs/postgres-migration-safety-checkerFull source code, issues, and releasesOpen →

Spotted a bug or have an idea?

This tool is built in the open and shaped by feedback. If something feels off — or you want a feature — I read every message.