Is the original order preserved?
Yes. The first occurrence stays in its original position.
Duplicate Line Remover
无需注册即可在浏览器中免费使用Duplicate Line Remover，输入值仅在设备上处理。
计算在本地完成，我们不会把输入值发送到服务器。
示例
The lines Apple, Banana, Apple, Orange become Apple, Banana, Orange.
计算方法
Lines are scanned from top to bottom. The first occurrence is kept and later matching lines are removed.
重要说明
Case-sensitive mode treats “Apple” and “apple” as different lines.
常见问题
Are blank lines treated as duplicates?
Yes. Repeated identical blank lines are reduced to one.
Can matching ignore uppercase and lowercase?
Yes. Disable case-sensitive matching.