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Find Differences Between Two Data Sets

Compare two lists of IDs, SKUs, or records.

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💡 Paste a list in each box (one item per line). Only in A = items missing from B · In both = the overlap · Only in B = items missing from A · All (unique) = combined, de-duplicated. Everything runs in your browser.

data tips

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Paste two columns of IDs or SKUs to find what was added or dropped between exports.

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"All (unique)" gives you the combined, de-duplicated set.

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Keep "Trim whitespace" on so stray spaces don't cause false mismatches.

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Your data stays on your device.

Com funciona

1
Introdueix
Enter your data into the tool above. Everything stays local to your browser.
2
Processa
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Descarrega
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Per què usar la nostra?

✓Completament gratuït — sense costos ocults, mai
✓No cal compte, correu electrònic ni inici de sessió
✓Els fitxers no surten mai del teu dispositiu
✓Sense cap límit de mida de fitxer
✓Sense marques d'aigua en cap sortida

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See which items appear in both lists (the intersec

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Find What's Missing Between Lists

Spot items in one checklist that are absent from a

Preguntes freqüents

Back to Compare Two Lists