Discover Duplicate

Finds values that appear at least twice in your data.

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Table Statistic?

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Finds values that appear at least twice in your data. Duplicate values are values that occur more than once in a given set. Read more about duplicate on Wikipedia https://en.wikipedia.org/wiki/Data_deduplication

2 is a duplicate value in [2, 5, 3, 2, 4, 2] because it appears 3 times.

This tool is useful when you need to identify and remove duplicate entries in your data, such as duplicate email addresses in a mailing list or duplicate records in a database. It can help you maintain data integrity and reduce redundancy.

Microsoft Excel: DUPLICATE
Google Sheets: COUNTIF
Apple Numbers: COUNTIF
Python Pandas: df[df['column'].duplicated()]
Related Words: duplicate, repeat, identical, redundancy, repetition

This is normal for a web based application. We recommend uploading data up to 6000 columns and rows. If you encounter lag, you can reduce the sheet size.

There is a fullscreen button on the top right side of the input table. You can also download the table offline to edit with excel which has bigger screen sizes.

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Video Tutorial?

Table Statistic?

Any Questions?

Q1: What does this tool do?

Q2: Can you give an example?

Q3: When is it useful?

Q4: What are related functions?

Q5: Why does it lag during input pasting?

Q6: Can I make the spreadsheet window bigger?

Q7: Who can I contact?