Line Numbering
1. Line
1.
Paste your text into the input area
2.
Adjust the start number, step increment, and separator style
3.
Copy the numbered output
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Adding line numbers when sharing code snippets for discussion
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Referencing specific lines in a document during review
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Preparing numbered lists for technical documentation
Can I change where numbering starts?
The Start field lets you begin at any number, not just 1.
What separators can I use?
Choose from five preset styles: dot (1.), colon (1:), pipe (1 |), dash (1 -), or space. The separator is placed between the number and the line text.
Is my text sent to a server?
All processing happens in your browser. No text is transmitted or stored.
Can I add line numbers to code?
Paste any plain text including source code. The numbers are prepended to each line as plain text.
What does the step option do?
Step controls the increment between line numbers. A step of 10 produces 10, 20, 30… which is common in BASIC-style code listings.