📊 Compare Two Lists or Columns

It's super simple! Just follow these steps:

1. Copy the first column from your Excel or Google Sheets file.
2. Paste it into the "List A" box on our site.
3. Copy the second column and paste it into the "List B" box.
4. Click the "A ∩ B (Intersection)" button. The results box will instantly show you all the values that were in both lists. No more complicated VLOOKUP formulas!

Absolutely. That's a perfect job for the Union operation. Paste your two lists into the boxes and click the "A ∪ B (Union)" button. The tool will combine both lists and automatically remove all the duplicate entries, giving you one clean, master list of all unique items.

This is a common task, and we give you two options for it, which are called "difference" operations:

• To see what's in List A but missing from List B, click "A \ B (In A, Not B)".
• To see what's in List B but missing from List A, click "B \ A (In B, Not A)".

It's a great way to quickly see differences in product lists, email lists, or any other data you're comparing.

You don't even need to use the second box for that! Just paste your full list into "List A" and then click the "Duplicates in A" button. The result will show you every item that appeared more than once and even give you a count of how many times it showed up. It's a fast way to clean your data.

Yes, 100%. Your privacy is our priority. All the magic—the comparing, sorting, and analyzing—happens right inside your web browser. Your data is never sent to our servers or stored anywhere. What you paste here stays on your computer. Once you close the tab, it's gone.