The right record, every time.
Match by SKU or a composite key. Reordered rows and leading zeros stay intact.
✧ LOCAL CSV COMPARISON
Compare your catalog exports.
Compare two product CSV exports by SKU or a composite key.
Find added, missing and changed records. Your data stays in this browser tab.
Compare files
1 Add your exports2 Check your match3 Review changes
01
THE BASELINEPrevious export
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UTF-8 · up to 2 MiB
02
WHAT'S NEWLatest export
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UTF-8 · up to 2 MiB
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File limits: 20,000 rows, 100 columns and 500,000 cells per file. No file storage. Originals stay unchanged.
2
Tell us what makes a record unique.
SKU alone may not be enough. Add a warehouse or variant column when one SKU appears more than once.
Match records using
Leading zeros are always preserved. Row order does not matter.
Compare these values
Values are compared as exact text: 18.0 and 18.00 count as different.
Optional key matching rules
These rules apply only to identifiers. Any collisions they create will pause comparison.
We'll check for ambiguous keys before comparing.
YOUR COMPARISON
Here's what changed.
← Swipe the table sideways to see all columns →
| Status | Record key | Field | Previous value | Latest value | Data rows Previous → latest |
|---|
CSV downloads contain all changes, regardless of filters. Formula-like cells are prefixed with an apostrophe for safer spreadsheet viewing; CSV apps may still reinterpret identifiers. The exact JSON report preserves original text. Expand “View full record” to inspect source values. Added and missing records also include their full row data in the downloads.
BUILT FOR A CAREFUL REVIEW
Small details.
Reliable matches.
Resolve ambiguity first.
Duplicate or empty keys pause comparison so you can choose a reliable match.
Review before you update.
Inspect full records and export CSV or JSON. Neither original file is rewritten.
FIELD NOTES