How does it work?

This tool finds duplicate numbers in your text and increments each occurrence after the first. It's useful for:

• Making duplicate identifiers unique
• Creating sequential versions from repeated numbers
• Fixing duplicate numbering in documents
• Creating test data with incremented duplicates

You can specify how much to increment by using the "Increment by" field. The default is 1.

Example

Item 5, Item 5, Item 5, Item 5
Price: $10.50, $10.50, $10.50
Version 2.0, Version 2.0, Version 3.0, Version 3.0
Room 101, Room 102, Room 101, Room 102

Item 5, Item 6, Item 7, Item 8
Price: $10.50, $11.5, $12.5
Version 2.0, Version 3, Version 3.0, Version 4
Room 101, Room 102, Room 102, Room 103

The tool works with:

• Integers (e.g., 5, 6, 7...)
• Decimal numbers (e.g., 10.5, 11.5, 12.5...)
• Negative numbers

How duplicate incrementing works:

1. The first occurrence of each unique number is kept as is
2. The second occurrence becomes: original number + increment value
3. The third occurrence becomes: original number + (2 × increment value)
4. And so on...

Note: Numbers are considered duplicates only if they are exactly the same. For example, "5" and "5.0" are treated as different numbers.

Related Tools

• Duplicate and Increment - Create multiple copies of text with incremented numbers
• Increment Numbers - Increment all numbers in text by a specified value
• Decrement Numbers - Decrement all numbers in text by a specified value
• Duplicate and Decrement - Create multiple copies of text with decremented numbers
• Create Sequence - Generate a sequence of numbers with custom formatting