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DevDash

Add Line Numbers

Text Utilities

Prepend line numbers (1. 2. 3. ...) to each line of text.

By DevToolHQ teamUpdated 2026-04-15100% client-sideMethodology
100% client-side processing
100% client-side — your text never leaves your browser
Input
0 characters|0 words|0 lines
Output

How to Use Add Line Numbers Online

  1. Paste your data into the input field above
  2. The result appears instantly in the output area
  3. Click "Copy" to copy the result to your clipboard

Prepend line numbers (1. 2. 3. ...) to each line of text.. Runs 100% client-side — no data is sent to any server.

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