Line Prefix, Suffix and Numbering

Add a prefix, suffix or line numbers to every line of text at once — free online tool.

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About

About the Line Prefix, Suffix and Numbering

Adds a prefix and/or suffix to every line of a list, with optional numbering, zero-padding and a custom separator.

Developers use it to wrap a list of values in quotes or brackets for code, while writers number a list of steps or references. It's one of many free text tools on Toolapt, and like every tool here, it's free to use with no sign-up and no limit on how many times you run it.

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Guide

Using the Line Prefix, Suffix and Numbering

  1. 1

    Step 1

    Paste your list, one item per line, into the Input box.

  2. 2

    Step 2

    Type a prefix and/or suffix to add to every line.

  3. 3

    Step 3

    Turn on "Number the lines" if you want numbering, and set the starting number and separator.

  4. 4

    Step 4

    Click Apply to see the result, then Copy it or Clear to start over.

  • Adds any prefix and/or suffix text to every non-blank line
  • Numbers lines with a custom starting number and a custom separator between the number and the text
  • Optional zero-padding so numbers line up neatly (01, 02, 03 ...)
  • Optional skipping of blank lines so they aren't prefixed, suffixed or numbered
  • Works entirely in your browser — no installs and no sign-up
  • Free to use, with no limit on how many times you run it
  • Fully responsive, so it works just as well on a phone as on a desktop

Developers

Developers use Line Prefix, Suffix and Numbering for wrapping a list of values in quotes, brackets or commas before pasting them into code.

Writers

Writers use Line Prefix, Suffix and Numbering for turning a plain list into a numbered set of steps or a numbered reference list.

Spreadsheet users

Spreadsheet users use Line Prefix, Suffix and Numbering for formatting a column of pasted values into a bullet or numbered list.

Students

Students use Line Prefix, Suffix and Numbering for numbering a list of citations or answers before submitting an assignment.

Examples

Line Prefix, Suffix and Numbering examples

3 worked examples

01

Wrap values in quotes for code

Paste apple, banana and cherry on separate lines with Prefix set to " and Suffix set to ", to get "apple", then "banana", then "cherry", each wrapped and comma-terminated.

02

Zero-padded numbered list

With 3 items, numbering turned on starting at 1, and zero-padding enabled, the output reads 01. apple, 02. banana, 03. cherry — padding is based on the total line count.

03

Skip blank lines

Paste apple, a blank line, then banana with numbering from 1 and Skip blank lines on, to get 1. apple, an untouched blank line, then 2. banana.

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FAQ

Frequently asked questions

Quick answers to common questions about the Line Prefix, Suffix and Numbering.

What does Line Prefix, Suffix and Numbering do?

It adds text to the start and/or end of every line in a list, and can number the lines with a custom starting number and separator.

Is this tool free to use?

Yes. It's free, with no sign-up, no watermark and no limit on how many times you use it.

Is my list safe when I use this tool?

Yes. Your list is processed entirely on your own device — nothing is sent to a server.

Can I add both a prefix and a suffix at the same time?

Yes. Fill in both the Prefix and Suffix fields and both will be applied to every line in the same pass.

What does "Pad numbers with zeros" do?

It pads line numbers with leading zeros (01, 02, 03 ...) so they line up evenly, based on the total number of lines.

Can I start numbering from something other than 1?

Yes. Set "Numbering start" to whatever number you want the first line to begin at.

What does "Skip blank lines" do?

It leaves empty lines untouched, so they aren't given a prefix, suffix or number.

Does this tool have any limitations?

It's built for everyday lists; extremely large lists are still handled but may take a moment longer to process.

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