Make your code or text easier to reference. Automatically prepend line numbers to every line of your input.
A line-number tool adds sequential numbers to lines of text.
Paste the text and generate numbered lines. Options may include starting number, separator, or whether blank lines are counted.
It is useful for code review, legal or technical references, debugging, and quoting specific lines.
Whether blank lines receive numbers depends on the tool’s settings.
Line numbers are labels added to the text; they normally do not change the original content unless you export the numbered version.
If numbering looks wrong, check blank-line handling, wrapping versus actual newline characters, and the chosen starting number.
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