CSV Schema Guard

Compare a trusted CSV against a new file before it enters a workflow. Catch missing columns, type drift, null spikes, duplicate keys, row-count swings, and suspicious value shifts.

Use this as a preflight check for recurring exports, vendor feeds, analytics drops, ops reports, or any CSV that can quietly change shape.

Trusted baseline

The known-good CSV shape you expect future files to follow.

BASELINE

Drop baseline CSV or click to choose a file

No baseline loaded.

Incoming file

The new CSV you want to validate before trusting it.

CANDIDATE

Drop incoming CSV or click to choose a file

No incoming file loaded.

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Guard score Load two files

High risk 0

Medium risk 0

Columns checked 0

Rows compared 0

Findings

Load a baseline and incoming CSV to run the guard.

No comparison has run yet.

Schema contract

Column-by-column comparison of expected and incoming shape.

Column	Status	Baseline	Incoming	Notes
No schema loaded.

Baseline preview

First five parsed rows.

No baseline preview.

Incoming preview

First five parsed rows.

No incoming preview.