Line Number Adder
Add line numbers to text files, logs, or lists instantly. Fast, free, and fully client-side. Nothing is uploaded to a server.
Input
0 chars · 0 wordsOutput
0 charsHow the Line Number Adder Works
Prepends sequential line numbers to text or code blocks, supporting custom starting numbers, zero-padding, and delimiter formatting (e.g. "1. ", "001 | ").
Usage Example
Input: First Line Second Line → Output: 1. First Line 2. Second Line
Frequently Asked Questions
Can I add custom prefixes and delimiters?
Yes, customize zero padding, separator symbols (such as colons, pipes, or periods), and starting index.