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Add Line Numbers
Text Tools
Add Line Numbers
Favorite
Add customizable prefix line numbers to text blocks with padding and step options.
100% client-side: your files never leave your browser
Numbering Settings
Format Style
1. Line
1: Line
[1] Line
1 | Line
Custom Formatter
Zero Padding
None (1, 2, 3...)
Two Digits (01, 02...)
Three Digits (001, 002...)
Start Numbering From
Increment Step
Skip numbering on empty lines
Add Line Numbers
Clear
Input
Output
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