Input
apple apple banana
Output
apple banana
Text Tools
Remove Duplicate Lines Online
Remove duplicate lines from multiline text with options to ignore case, trim edges, keep first-seen order, and review frequency stats. Processing stays in your browser.
TextDeduplicateCleanup
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Quick actions
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文本处理
文本去重
重复频次 Top 10
原始：0 行 去重后：0 行 移除：0 行 重复率：0%
输入文本后自动去重
Use cases
- Clean duplicate SEO keyword lists
- Normalize email or roster lists
- Deduplicate log snippets before analysis
How to use
- Paste one item per line
- Toggle ignore-case, trim, and keep-order options as needed
- Copy the unique result
Example input and output
FAQ
Can the original order be preserved?
Yes. Keep original order retains each line at its first occurrence. Turn it off when you want dictionary-style ordering of the unique set.
Can I see how often each line repeated?
Yes. The tool shows a top frequency table and lets you copy that table separately from the deduplicated text.
Tools
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Count characters, words, lines, paragraphs, and sentences with separate CJK character and English word metrics, plus reading and speaking time estimates. All stats update locally in your browser.
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