Text Dedup
Remove duplicate lines from text. Keep unique lines only.
About Text Dedup
This tool removes duplicate lines from your text. It compares each line and keeps only unique entries. You can choose to keep the first or last occurrence of each duplicate, and whether to ignore leading/trailing whitespace and case when comparing.
How to Use
Paste your text containing duplicate lines into the input field. Configure options such as ignoring leading/trailing whitespace, case insensitive comparison, and removing empty lines. Click "Remove Duplicates" to get the deduplicated result.
Understanding Options
"Ignore whitespace" trims spaces from the start and end of each line before comparing. "Case insensitive" treats "Apple" and "apple" as the same. "Remove empty lines" filters out blank lines. "Keep first occurrence" preserves the original order while "Keep last occurrence" keeps the most recent duplicate.
Common Use Cases
Data cleaning removes duplicate entries from CSV files, email lists, and log files. Developers deduplicate configuration lists and dependency arrays. Content managers clean up keyword lists and URL lists. Researchers remove duplicate entries from survey responses and datasets.