List Union
TEXT & DATA
List Union
Combine two lists without duplicate nonempty lines.
UNDERSTAND YOUR RESULT
How it works
Combine two lists without duplicate nonempty lines.
THE CALCULATIONunique items from either list, preserving first occurrence
Using this calculator
Enter first list, second list. unique items from either list, preserving first occurrence.
What to keep in mind
Your inputs stay in this page. Text is limited to 50,000 characters; large lists and tables are bounded. No data is uploaded or saved.
Frequently asked questions
Are my entries saved?
No. Calculator inputs remain in the current page and are cleared when you reload or leave. The tools do not upload your entries.
Why are results rounded?
The display is rounded for readability. Calculations use unrounded intermediate values. An estimate should not be interpreted as an exact measurement.