Text & String ToolsFree Tool

Add Line Numbers

Provided byOnline Text Toolsonlinetexttools.com

Prefixes each line with its sequential line number.

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About this tool

Generates a sequential line number prefix for every line of plain text input. Users paste their content into the designated area, and the tool automatically processes the text, appending an increasing numerical identifier to the start of each original line. The output maintains the structure and content of the source material while adding the necessary numbering scheme, making it easy to track individual lines within a document. Individuals needing numbered drafts, academic submissions, or formatted code blocks can utilize this utility. It is particularly useful for reviewing documents where specific line references are critical, such as when collaborating on scripts, debugging code snippets, or preparing materials that require precise citation of content segments. The simple operation ensures rapid preparation of structured text without manual counting.

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