Text tool
Duplicate Line Remover
Deduplicate a line-based list locally without sorting it.
Unique lines
Duplicates removed—
How it works
Matching is exact and case-sensitive. Blank lines are treated as lines, and pasted text stays in the browser.
output = first occurrence of each exact line
Worked example
Lines A, B, A become A, B while keeping their original order.
How to use this tool
- Enter the known values and choose units where available.
- Check the primary result and supporting details.
- Clear or replace an input to calculate another case.
Frequently asked questions
What happens with invalid or incomplete inputs?
The result remains blank until the required inputs form a finite, meaningful calculation. Zero denominators and physically impossible negative quantities are not calculated.
Can I use decimal values?
Yes. The tool accepts decimals and keeps full precision for the calculation while rounding the displayed result for readability.