Compare Parquet Schemas Online

Upload two Parquet files and instantly see schema differences — added, removed, and changed columns. Everything runs locally in your browser.

Convert to Parquet Create Parquet Edit Parquet Schema Diff File Diff

Why Compare Schemas?

Schema Migration

Verify schema changes between versions of your data pipeline output.

Debug Mismatches

Quickly identify why a query fails — find missing or renamed columns.

Audit Changes

Track type changes that could cause downstream issues in your data stack.