Remove Duplicate Lines
Remove duplicate lines from lists, logs, keywords, or pasted text with options for case sensitivity and whitespace trimming.
Use Remove Duplicate Lines
Details, guidance, and common questions
The working tool stays first. Open these sections only when you need more context.
Duplicate-line cleanup is a common low-friction workflow
Repeated lines often appear in imported lists, keyword exports, spreadsheets, and copied notes. Removing them manually is slow and surprisingly error-prone.
This tool keeps the process simple by showing the cleaned result, the unique count, and how many duplicates were removed.
Helpful tips for a better result
- Enable trim mode when the same text appears with accidental leading or trailing spaces.
- Disable case sensitivity if you want Apple and apple treated as the same line.
- Use the output as a cleaner source for spreadsheets, campaigns, or scripts.
Frequently asked questions
Can I ignore letter case when removing duplicates?
Yes. Turn off case sensitivity to treat differently capitalized lines as matches.
What does trim whitespace mean?
It removes extra spaces at the start or end of each line before comparing them for duplicates.
Will the original line order stay the same?
Yes. The tool keeps the first occurrence of each unique line in its original order.
What kinds of text work best here?
It is useful for keyword lists, logs, tags, names, and any line-based text data.