Add Line Numbers to Text

Number every line in a text document with customizable starting count and delimiter.

How It Works & Processing Standards

Number every line in a text document with customizable starting count and delimiter.

Your input data is never sent to any server and is securely processed on your device.

Current Limits

  • Maximum input length: 2,000,000 characters

Add Line Numbers to Text is a 100% free, browser-based online utility. All calculations and file conversions run locally inside your browser (Local-First) without sending data to remote servers, keeping your documents and inputs strictly private.

How to Use Add Line Numbers to Text

  1. 1
    Paste LinesEnter lines to enumerate.
  2. 2
    Set Start & SeparatorSpecify starting count and delimiter symbol.
  3. 3
    Copy Numbered TextCopy your enumerated document.

Common Use Cases

  • Creating numbered reference transcripts for legal or academic review
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