Extract First N Lines (Head)

Extract the first N lines from a document or log file.

How It Works & Processing Standards

Extract the first N lines from a document or log file.

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

Extract First N Lines (Head) 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 Extract First N Lines (Head)

  1. 1
    Paste LinesEnter document or dataset.
  2. 2
    Set Line CountEnter number of top lines to extract (e.g. 10).
  3. 3
    Copy Head LinesSave your top-line sample.

Common Use Cases

  • Sampling the header and first few data rows of massive CSV or log files
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