删除重复行
从文本中删除重复行。
Paste text to remove duplicate lines while preserving the original order. Optionally trim each line and ignore case when comparing. The original and final line counts are shown. Everything runs locally in your browser.
工作原理
- 1 Paste your lines.
- 2 Choose trim and ignore-case options.
- 3 Copy or download the de-duplicated result.
常见用例
- Clean up a list of emails or URLs.
- Remove repeated log lines.
- De-duplicate keywords.
- Tidy exported data.
常见问题
Is my text sent to a server?
No. Everything runs locally in your browser — your text is never uploaded, stored or logged.
Is the order preserved?
Yes. The first occurrence of each line is kept in its original position.
Is it really free?
Yes — free, with no signup and no limits.