List cleanup
Duplicate Line Remover
Remove duplicate lines from pasted lists and keep only unique lines.
Your input is not stored on our server
Input lines
0 lines
After cleanup
0 lines
Removed
0 lines
How to use Duplicate Line Remover
Clean keyword lists, product codes, URL lists, or any line-based text quickly in the browser.
Recommended workflow
- 1.Paste a line-based list.
- 2.Choose trim and case options.
- 3.Copy the cleaned result.
Duplicate Line Remover output checks
- Check whether the destination includes spaces in its count.
- For a byte limit, confirm the destination's encoding.
- Verify line breaks and emoji after pasting the result.
Processing method
Lines are compared after applying the selected whitespace and case rules, while the first occurrence is retained.
How files and inputs are handled
This tool processes files and inputs in the current browser. OneClickTool does not receive or store the original content on its own server.
Frequently Asked Questions
How are duplicate lines detected?
The tool compares each line. Trim options can ignore leading and trailing spaces.
Can I ignore letter case?
Yes. Case-insensitive cleanup treats Apple and apple as duplicates.
Can empty lines be removed too?
Yes. Enable the empty-line option to remove blank rows while cleaning the list.
Supported Scope
Character counting, byte counting, and duplicate line cleanup are supported.
Spell checking, semantic review, and external document import are not currently supported.
Related Guides
Check the criteria before using the tool to review results faster.
