Case & Format
Add Line Numbers
Add sequential line numbers to any text. Choose the starting number and the separator between number and content.
Runs in your browser — your text is never uploaded or stored.
Output
Advertisement
FAQ
Can I start at a specific number?
Yes — set any starting integer and every subsequent line increments by one.
What separator is used?
Default is a period and space (`1. `). You can change it to anything.
Are empty lines numbered?
Yes, empty lines still receive a number by default.
Related tools
Sort Lines
Sort a list of lines A–Z, Z–A, by length, or shuffle randomly. Free browser-based text sorter.
Remove Duplicate Lines
Paste a list and instantly remove duplicate lines. Case-insensitive option and count of removed items.
Reverse Text
Reverse text by characters, words, or line order. Free, instant, browser-based.
Word Frequency Counter
Count how often each word appears in a block of text. Sorted table with total word count and unique words.