Know what breaks before you migrate

Pick a direction. Both run entirely in your browser — no schema upload, no database password required for the standard scan.

MySQL / MariaDB PostgreSQL

20 deterministic checks — AUTO_INCREMENT, ENUM, UNSIGNED, zero dates, ON DUPLICATE KEY UPDATE, and more.
PostgreSQL MySQL / MariaDB

21 deterministic checks — arrays, JSONB, row-level security, table inheritance, standalone sequences, ON CONFLICT, and more.