Apps / Migration Diff Narrator

Migration Diff Narrator

Two versions of a schema in, every change marked safe, caution or breaking out.

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What it does

Tells you which database changes are safe to ship before you ship them. You paste the old and new versions of your schema (Postgres or MySQL table definitions, or TypeScript interfaces) and it lists every change, spotting renamed tables and columns instead of reporting them as deleted and added. Each change is labeled safe, caution or breaking, with a one-sentence note on how to migrate it, and the whole list exports as a checklist for your code review. It runs in your browser and works offline.

Good to know

It judges changes from the schema text alone, so it cannot see the data already in your tables.

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