Trim List Items

What Is a List Item Trimmer?

The Trim List Items tool lets you clean up whitespace around each item in a list. Whether you have extra spaces, tabs, or newlines before or after your list items, this tool removes them instantly. You can choose to trim from the left side, right side, or both, and you can split your list by a specific character or a regular expression pattern.

Specify how your input list is separated using a literal character or a regex pattern, then choose whether to left-trim, right-trim, or both. The trimmed items are joined back together using your chosen output separator.

How to Trim List Items

1. Paste or type your list into the Input List text area.
2. Choose a Separator Mode — use Literal for a fixed character or Regex for a pattern.
3. Enter the Input Separator that currently divides your items (e.g., \n for newlines).
4. Set the Output Separator for the trimmed result.
5. Toggle Left-trim items and Right-trim items as needed.
6. The trimmed list appears instantly in the output area.

Common Use Cases

• Clean up messy data copied from spreadsheets or documents with inconsistent spacing.
• Normalize list items before further processing, such as sorting or filtering.
• Remove leading or trailing whitespace from items imported from CSV or TSV files.
• Prepare clean data for database imports or API payloads.