Can I choose the starting number?

Yes, set any starting number rather than always beginning at 1.

Does it number blank lines too?

You can typically choose whether blank lines get a number or are skipped, depending on how you want the output formatted.

What separator is used between the number and the line text?

A standard separator (like a period and space) is used, matching typical numbered list formatting.

Does Number Lines upload my files to a server?

No. Number Lines runs entirely in your browser using on-device processing, your files never leave your device.

Number Lines

Add sequential numbers in front of every line.

Runs in your browser

Input

Start at

About this tool

Adding sequential numbers in front of every line — for a numbered list, a script with line references, a checklist — is simple in concept but tedious to do by hand across more than a handful of lines. This tool adds sequential numbers in front of every line automatically, turning a plain block of text into a numbered list instantly.

Frequently asked questions

Sort Lines

Sort lines alphabetically, reverse alphabetically, or shuffle them.

Reverse Lines

Flip the order of lines in a block of text.

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