Mainhattan ► List comparing, difference & matching operations Tool

List comparison & matching operations Tool

With the online list operations tool you can quickly and easily compare two lists or arrays, find their intersections, subtract one list from the other, extract similar / unique or different contents and of course deduplicate the lines, line by line, as well. I used this tool mainly for matching hash-values, as you can create them with the salted sha256 hash generator. But also for other list-comparisons like email-lists or arrays of any kind it is a blessing and saves a lot of time!

This online lists operations tool is safe because the magic only happens in your browser and not on a server!

If you like it, please buy me a beer -> here

Simply copy / paste or load the lists to be compared into a box and select the desired function.

First List (A)

Second List (B)

Merge lists. Subtract list B from list A.
Find intersection of the lists. Subtract list A from list B.
Subtract only the first match for each item. Remove all identical items.
Perform actions in a case-sensitive way.

Output