Duplicate Line Remover

Remove duplicate text lines while preserving first occurrence order. Optionally ignore surrounding whitespace or letter case.

Efficiency × Cuteness

Paste or enter the content to be analyzed

Supports plain text content such as .txt, .log, .csv, .sql, etc.

Import files

You can enter file name, SQL, error code or any keywords

Highlight

ignore blank lines 忽略空白行Ignore leading and trailing whitespace 忽略行首尾空白English case sensitive 區分英文大小寫complete match 完整匹配

Small reminder: The data will only be processed in your browser and will not be uploaded to the server!

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Total number of rows0

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Repeat type0

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Total number of repeats0

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Number of valid rows0

Duplicate rows are highlighted in yellow

After pasting the content, click "Start Analysis" and the highlighted results will be displayed here.

List of duplicate content (sorted by number of repetitions)

Not analyzed yet

Your data will only be processed in the browser and will never be uploaded or stored to the server, so please feel free to use it!