Line Number Generator
Prepend numbers to every line.
Your text never leaves your browser
Hides your text behind a privacy screen so no one nearby can read it. Your text stays in the box and keeps counting.Processed entirely in your browser. Nothing is uploaded.
About the Line Number Generator
Line Number Generator prepends a number to every line, with options for the starting number and the separator between the number and the text. Numbers are padded so they line up neatly.
It doubles as a line counter: the last number it writes is how many lines your text has, so numbering a block and reading the final figure answers both questions at once.
Great for referencing items, creating numbered steps, or annotating logs. Your text never leaves your browser — everything is computed locally.
Common uses
- Turning a list into numbered steps.
- Adding references to lines for review or discussion.
- Numbering entries before sharing or printing.
Frequently asked questions
Can I start from a number other than 1?
Yes — set any starting value and the numbering continues from there.
Are numbers aligned?
Yes — numbers are padded with leading spaces to the width of the largest one, so 9 and 10 line up and the text after them starts in the same column.
Can I change the separator?
Yes, choose the characters between the number and the line (for example ". ", ") ", or a tab).