Deduplicate Lines
Remove duplicate lines from a list. Order is preserved — the first occurrence of each line wins. All processing happens in your browser.
Original0 chars, 0 lines
Order is preserved — the first occurrence of each line wins.
Unique lines0 chars, 0 lines
Options
How to remove duplicate lines
- Paste a list of lines on the left (or drop a .txt file).
- Tick the options that fit your data.
- The unique result appears instantly on the right.
- Copy it, download it, or click "← Use as input" to chain another tool.
Common options
- Ignore case — treats "Apple" and "apple" as the same line.
- Trim whitespace — leading and trailing spaces are removed before comparison and from the output.
- Skip empty lines — drops blank rows.
Related tools
Pair this with Sort Lines to produce a clean alphabetised set, or extract data first with the Pattern Extractor.