Line Numbering Tool
Add sequential numbered prefixes to every line of text with custom starting values, or strip existing line numbers and list prefixes back out.
Result
Your result will appear here.
How to use Line Numbering Tool
- 1Paste your text or code snippet into the input box.
- 2Select "Add line numbers" to append sequential prefixes with a custom start number, or "Remove line numbers" to strip existing numbering.
- 3Copy the neatly formatted output directly to your clipboard.
Key features
Sequential Line Numbering
Appends sequential line numbers with automatic digit-width alignment padding.
Custom Starting Index
Configurable starting number index for continuous multi-part documents.
Prefix Stripping
Strips existing numbering patterns (such as "1. ", "1) ", "1- ") with one click.
In-Memory Processing
Instant side-by-side text transformation in local browser memory.
Examples & use cases
Adding Line Numbers
Automatically prepends uniform padded numbers to list items.
First task Second task Third task
1. First task 2. Second task 3. Third task
Stripping Numbered Prefixes
Removes common numbering prefixes from copied code or lists.
1. Alpha 2. Beta 3. Gamma
Alpha Beta Gamma
Frequently asked questions
Helpful guides & tutorials
Related tools
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