Add Line Numbering

Line Numbering Tool

Add sequential line numbers to your text with customizable formatting

Input Text

Numbered Output

Information

How to Use

1. Enter your text in the left panel
2. Click "Process" to add line numbers
3. Copy the numbered text using the copy button
4. Line numbers automatically adjust their format:
   • 1-99 lines: 01., 02., ..., 99.
   • 100-999 lines: 001., 002., ..., 999.
   • 1000+ lines: 0001., 0002., etc.

FAQs

Does this tool modify my original text?

No, the original text remains unchanged. The line numbers are added as a prefix to each line in the output.

What happens with empty lines?

Empty lines will still receive line numbers in the output.

Is there a limit to the number of lines?

There's no hard limit, but extremely large documents may impact performance.

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