Find Longest Line in Text

Identify the single longest line in a document along with its line number and character count.

How It Works & Processing Standards

Identify the single longest line in a document along with its line number and character count.

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

Find Longest Line in 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 Find Longest Line in Text

  1. 1
    Paste TextEnter multi-line text.
  2. 2
    View Longest LineSee the longest line, character count, and line number.

Common Use Cases

  • Catching lines that exceed 80 or 120 character limits in source code
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