Merge Two Lists
Merge two lists in your browser while keeping the order and cleanup rules you choose.
Merge two lists
A QUICK WALKTHROUGH
How to use this tool
- Paste one item per line into each list.
- Choose case handling, duplicate removal, and output order.
- Merge the lists, then copy or download the result.
Line-based merging
Each non-empty trimmed line is one item. The first list is followed by the second list, and surrounding whitespace is ignored.
Choose cleanup rules
Remove duplicates by default, optionally compare case-insensitively, and keep input order or sort the merged result alphabetically.
Local and bounded
Both lists are processed in your browser. Each input is limited to 50,000 characters and 10,000 non-empty items.
GOOD TO KNOW
Common questions
Which list comes first?
Items from the first list come before items from the second list unless alphabetical order is selected.
Are duplicates removed?
Yes by default. Turn off duplicate removal to preserve repeated items.
Are my lists uploaded?
No. Merging, copying, and downloading happen in your browser.