Merge and De-duplicate Two Lists

Combine two lists into one unique list.

Logowanie nie jest wymagane

List A (0 lines)

List B (0 lines)

Trim whitespaceIgnore case

— no items —

💡 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.

de-duplication tips

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The "All (unique)" view merges both lists and removes duplicates in one step.

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Use "Ignore case" to treat differently-cased duplicates as one.

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Copy the merged list straight into your spreadsheet or tool.

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Runs entirely in your browser.

Jak to działa

Wprowadź

Enter your data into the tool above. Everything stays local to your browser.

Przetwórz

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Pobierz

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Dlaczego nasze?

✓Całkowicie darmowe — brak ukrytych kosztów, nigdy

✓Nie potrzeba konta, e-maila ani logowania

✓Pliki nigdy nie opuszczają Twojego urządzenia

✓Absolutnie brak limitów rozmiaru pliku

✓Brak znaków wodnych na żadnych wynikach

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📧

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🔗

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See which items appear in both lists (the intersec

✅

Find What's Missing Between Lists

Spot items in one checklist that are absent from a

Często zadawane pytania

Back to Compare Two Lists