Add an Underscore to List Items

Add underscores to your list items with this quick formatting tool. Choose to place underscores before, after, or around each item. Supports trimming, live preview, and importing/exporting from text files. Great for formatting programming variables, filenames, or markdown identifiers.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .md, .ini, .html, .htm, .json, .xml, .yaml, .yml, .css
Total items: 0
Options
Trim lines before formatting

How to Use:

  1. Paste your list or import a file using Choose File.
  2. Select whether to add underscores as a prefix, suffix, or both.
  3. Enable the Trim lines option if needed.
  4. View the formatted output instantly. Copy or export it with a click.
  5. Use Clear All to reset the tool.

What Add an Underscore to List Items Tool Can Do:

This tool adds underscores to each line in your list. You can control placement (before, after, or both) and trim unnecessary whitespace before formatting. Live preview and counters help you track output. Includes full file import/export and works 100% client-side.

Example:

Before:

first
second

After (Both):

_first_
_second_

Common Use Cases:

Useful for formatting programming variables, naming conventions, markdown emphasis, placeholder structures, or underscore-based tagging systems.

Useful Tools & Suggestions:

If you’re adding underscores to list items, Add a Strikethrough to List Items can layer on more style especially if you’re marking items for deletion or edits. And when you want to tidy things up later, Trim List Items helps clean out any extra spacing so the formatting stays tight. It’s a quick way to add emphasis or prep content for markdown-style exports.

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