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How to Use Truncate Lines: Complete Guide (2026)
Learn how to use truncate lines free online — no signup, no download. Follow our step-by-step guide below.
What is Truncate Lines?
Truncate lines in text. Keep first N lines or remove first N lines. Useful for extracting headers, removing introductions, and processing text in batches. Optionally preserve or remove empty lines.
- 100% browser-based — no data uploaded to servers
- Free to use — no signup required
- Instant results — no waiting
- Works on all devices — mobile, tablet, desktop
How to Use Truncate Lines: Step-by-Step
- 1
Paste your text
Type or paste text with multiple lines.
- 2
Choose mode
Select 'Keep first N lines' or 'Remove first N lines'.
- 3
Set number of lines
Enter how many lines to keep or remove.
- 4
Truncate
Click Truncate. The truncated text appears in output.
Common Use Cases
Extract headers
Keep first line of CSV/text files as headers.
Remove introductions
Remove first N lines (introduction) from text.
Process in batches
Extract first N lines for batch processing.
FAQ About Truncate Lines
What does 'Keep first N lines' mean?
Only the first N lines are kept. The rest are removed.
What does 'Remove first N lines' mean?
The first N lines are removed. The rest are kept.
Ready to Try Truncate Lines?
No signup. No download. 100% free.