DocomintLine Numberer
Add sequential numbers to the start of every line in a block of text.
🔒 Processed on your device
Useful for turning a plain list into a checklist, a step-by-step guide, or a numbered reference list before pasting it somewhere that doesn't auto-number for you.
Example: A 5-item shopping list becomes a numbered list from 1 to 5, ready to paste as a numbered checklist.
How it works
- Paste a list of lines
- Each line is numbered instantly, on your device
- Copy the numbered list
Frequently asked questions
Can I change the numbering format?
Lines are numbered as "1. ", "2. ", and so on. Copy the result and adjust it in your editor if you need a different style like "01" or "[1]".
Is my text uploaded anywhere?
No — Line Numberer runs entirely in your browser using JavaScript/WebAssembly. Your text is never sent to a server.
Can numbering start from something other than 1?
Yes — set a custom starting number if you're continuing a list that was already numbered up to a certain point elsewhere.