文本工具
Clean repeated lines, preserve order, and keep only the items you want.
Text Tool
Tool workspace
Ready to start.
结果
Output and stats
结果
Run the tool to see output, stats, or game progress here.
How To Use
How to use Remove Duplicate Lines
Remove duplicate lines from copied lists, keyword sets, prompts, or classroom notes.
- Paste one item per line, then choose whether spaces and letter case should matter.
- Run the cleanup to keep the first instance of each unique line in the original order.
- Copy the cleaned list or download it as a text file.
Who Uses It
Who this page is for
- SEO teams, students, and teachers cleaning repeated lists or copied notes.
- Anyone deduplicating names, keywords, prompts, or tags before sharing them.
常问问题
Common questions
是的. The tool removes later duplicates and preserves the first matching line.
是的. No server processing is required for the cleanup step.
作者：wanglitou，转发时请注明出处: https://www.wanglitou.com/remove-duplicate-lines/
