Report Compare

Compare two reports and pinpoint exactly what changed — so mismatches don’t turn into long debug sessions. Runs locally in your browser.

Report A (baseline)

This is the “old / before” version

A:not loaded

Tip: Export your report as CSV if possible. XLSX works too (first sheet is used).

Report B (new)

This is the “new / after” version

B:not loaded

Privacy: files are processed locally in your browser — nothing is uploaded to a server.

1) Choose key fields

Keys uniquely identify a row (example: StoreId + Week)

Auto-pick tries common names: id, key, code, name, date, week, etc.

2) Compare options

Trim whitespace (" abc " → "abc")

Case-insensitive ("ABC" == "abc")

Treat empty as equal (blank == blank)

Normalize numbers (1, 1.0, "1" treated similarly)

Results

Added / removed / changed / unchanged rows

Added: 0 Removed: 0 Changed: 0 Same: 0 Columns:— Keys:—

Status	Row key	Details

“Row key” is generated from the key fields you selected. If nothing matches correctly, re-check keys.