How do I add line numbers to text online?

Simply type or paste your text into UltraFast Notepad's line numbers tool. Line numbers appear automatically alongside every line in real time.

Can I export a PDF with line numbers?

Yes. Click the PDF button in the toolbar to print or save a PDF that includes line numbers next to your text.

Yes. UltraFast Notepad is a Progressive Web App (PWA) that works without an internet connection once loaded. Your text is auto-saved in your browser.

Numbering Options

◉ Number All Lines
Every line gets a sequential number.

○ Number Non-empty Lines
Blank lines are skipped and not numbered.

Number Format

Use %n for the actual line number.

Start numbering at:

Enable Line Highlighting

Click a gutter number to highlight that line. (Tip: Turn this off if you prefer a distraction-free experience without background highlighting).