Add Underscore to List Items

Need to format your list items with underscores? This Add Underscore to List Items tool transforms plain text into underscore-formatted content perfect for programming, file naming, and variable creation. Whether you’re converting user input to snake_case variables or adding decorative underscores for emphasis, this browser-based tool handles the formatting automatically.

How to Use:

1. Paste your text items into the Input Text area
   • Each line becomes a separate item for underscore formatting
   • Skip empty lines excludes blank entries from processing
   • Trim whitespace removes extra spaces around each item

2. Choose underscore placement from the radio options
   • Prefix adds underscores before each item
   • Suffix adds underscores after each item
   • Wrap both places underscores before and after text
   • Snake case converts text to proper snake_case variable format

3. Control formatting behavior with toggle switches
   • Replace spaces converts all spaces to underscores
   • Lowercase text transforms everything to lowercase letters
   • Underscore count sets how many underscores to add per position

4. Copy your formatted results with the Copy button
   • Output updates live as you modify any setting
   • Export saves your underscored text as a downloadable file
   • Import loads existing files for batch processing

What Add Underscore to List Items Can Do:

This tool excels at converting human-readable text into programming-friendly formats. The snake case mode automatically handles proper variable naming conventions by replacing spaces, removing special characters, and converting camelCase to underscore format.

Developers use it to convert user interface labels into database field names or API endpoints. Take “User Email Address” and instantly get “user_email_address” ready for your code.

Programming and Development Uses:

The prefix and suffix modes work great for creating consistent naming patterns. Add leading underscores for private variables or trailing underscores for temporary identifiers. Database administrators format column names with consistent underscore patterns.

Replace spaces mode converts any text into underscore-separated format while preserving the original case. Perfect when you need URL-friendly slugs or file names that can’t contain spaces.

Lowercase conversion ensures your output follows standard programming conventions. Most languages prefer lowercase variable names, and this tool handles the conversion automatically while adding underscores.

File and System Naming:

Web developers create CSS class names and JavaScript function identifiers from plain English descriptions. The snake case mode removes special characters and creates clean, valid identifiers every time.

System administrators format log file names, directory structures, and configuration variables. The tool ensures consistent naming across different systems and eliminates problematic characters.

Content management systems often require underscore-formatted field names. Convert your form labels directly into database-ready identifiers without manual editing.

Example:

Here’s how different underscore modes transform common text:

Original:

User Name
Email Address  
Phone Number

Prefix (2 underscores):

__User Name
__Email Address
__Phone Number

Snake case:

user_name
email_address
phone_number

Wrap both:

_User Name_
_Email Address_
_Phone Number_

Add Underscore to List Items Table:

This table demonstrates how different underscore formats transform the same input text:

Common Use Cases:

Software developers convert user interface labels into variable names and database field identifiers for consistent code formatting. Web designers create CSS class names from design specifications and component descriptions. Database administrators format column names and table identifiers following naming conventions. API developers generate endpoint names and parameter identifiers from plain English descriptions. Content management system users convert form field labels into database-ready field names.