Merge and De-duplicate Two Lists

Combine two lists into one unique list.

Ez da saioa hasi behar

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

🧹

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.

📋

Copy the merged list straight into your spreadsheet or tool.

🔒

Runs entirely in your browser.

Nola Funtzionatzen Du

Sartu

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

Prozesua

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

Deskargatu

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

Zergatik erabili gurea?

✓Erabat doakoa, ezkutuko kosturik, inoiz

✓Ez da konturik, posta elektronikorik edo saioa hasteko beharrik

✓Fitxategiak ez dira inoiz zure gailutik irteten

✓Ez dago fitxategien tamaina mugarik

✓Ez dago ur-markarik edozein irteeratan

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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

Maiz egiten diren galderak

Back to Compare Two Lists