Duplicate Extractor
Free online tool to extract duplicate items from a text list.
Tool Guide
About the Online Text Duplicate Item Extractor
The online text duplicate item extractor filters out content items that meet specified duplication conditions from multiline text, supporting ">, =, -" duplicate-item filtering: extract duplicate text items by the conditions you set.
- Multiple conditions: six common comparison conditions to suit different statistical needs.
- Batch processing: analyze and extract from multiline text all at once.
- Result export: copy the results and download TXT or Excel files.
## Tutorial
- Paste your text list into the input box, ideally one text item per line.
- Choose an extraction condition (such as greater-than-or-equal, equal, not-equal, etc.).
- Enter a duplicate-count threshold (such as 2, 3, 5).
- Click "Start Extraction," and the system outputs a list of duplicate items meeting the conditions.
- Copy the results directly, or export as TXT/Excel for further processing.
## Use Cases
- Operations data cleaning: extract repeatedly submitted keywords, accounts, or content.
- Text analysis preprocessing: filter high-frequency words for word clouds and statistical analysis.
- Log and roster review: quickly find duplicate records or abnormal repeats.
- Survey and form checks: identify duplicate answers to improve data quality.
## FAQ
1. How do I find text items that appear at least twice?
Set the condition to "greater-than-or-equal" and the duplicate count to 2 to filter out text items that appear 2 or more times.
2. Does the tool count blank lines?
No. The tool automatically ignores blank lines and counts duplicates only for valid text items.
3. Can I extract only items that appear exactly 3 times?
Yes. Set the condition to "equal" and enter 3 for the duplicate count for precise extraction.
4. Can the results be exported?
Yes. Extraction results can be downloaded as TXT or Excel, making later archiving and analysis convenient.