Input
Hello World
Output
1. Hello 2. World
Text Tools
Add Line Numbers Online
Prefix multiline text with line numbers. Configure the starting number, separator, zero-padding, and whether blank lines are skipped. Numbering runs in your browser.
TextLine numbersNumbering
Favorite this tool
No favorite storage mode has been selected.
Quick actions
Copy this tool URL or open the system share sheet on a supported device.
文本处理
Add Line Numbers
等待输入
已复制
Use cases
- Share numbered code snippets
- Annotate teaching examples
- Number log or roster excerpts
How to use
- Paste multiline text
- Set the start number, separator, padding, and skip-blank option
- Copy the numbered result
Example input and output
FAQ
Which separators are available?
Common choices such as period, colon, closing parenthesis, Tab, and two spaces are supported.
What happens when blank lines are skipped?
Blank lines stay blank and do not consume a number. The next non-empty line continues the sequence.
Tools
Related tools
Continue with another translated tool for a nearby task.
Remove Line Numbers
Remove Line Number Prefixes Online
Detect and strip common leading line-number prefixes such as 1. , 1: , or 1) . Mid-line numbers stay untouched. Cleanup runs locally in your browser.
Text Line numbers Cleanup
Sort Lines
Sort Lines Online
Sort multiline text with dictionary order, natural (numeric-aware) order, length order, or shuffle. Optional reverse, case-insensitive compare, dedupe, and blank-line removal all run in your browser.
Text Sort Cleanup
Remove Empty Lines
Remove Empty Lines Online
Remove blank lines from text, with an option to also drop whitespace-only lines. Line cleanup runs entirely in your browser.
Text Cleanup Blank lines