Plain editors rarely add a real numbered prefix to every line; they only show a gutter you cannot copy.
Add Line Numbers writes the count into the text itself, so the numbering travels with the lines when you paste them elsewhere.
How to use Add Line Numbers
- Paste the lines you want numbered into the input box.
- Set the starting number, and Add Line Numbers prefixes every line as 1. 2. 3. from that value.
- Copy the numbered lines, or download them as a .txt file.
Use cases
- Turning a rough list into a numbered reference you can cite.
- Numbering steps in a procedure before pasting them into a document.
- Labelling log rows so you can point a colleague at a specific line.
Good to know
Add Line Numbers counts every line in order, including blank ones, and starts from the value you choose. The number is added as plain text in the form 1. 2. 3., so it stays attached when you copy the result.
Frequently asked questions
Can I start numbering from a value other than 1?
Yes. Set the starting number control and the first line takes that value, with each later line increasing by one.
Are blank lines numbered too?
Yes. Every line gets the next number in sequence, so blank lines keep the count continuous.
Is the number part of the text or just shown on screen?
It is inserted into the text itself, so it is copied and downloaded along with each line.