Line Numbering Tool – Add Line Numbers to Text

This tool adds line numbers to your text, making it easier to reference specific lines in code, logs, documents or tutorials. You can quickly generate a numbered version of any text and copy it for sharing or printing.

How to Use

1. Paste your text into the input area.
2. Choose the starting number if needed.
3. Click the button to add line numbers.
4. Copy the numbered text and use it wherever you need.

Where It Helps

• Sharing code snippets with line references.
• Reviewing logs and error reports with teammates.
• Creating tutorials or documentation with numbered lines.

FAQ

Can I change the starting line number?

Yes, you can usually set any starting number before generating the result.

Does it modify the original text content?

It only adds numbers to each line in the output. Your original text remains unchanged in the source field.

Is this tool free to use?

Yes, the line numbering tool on DELTOOLLAB is completely free.