Can I make the deduplication case-sensitive or insensitive?

Yes, you can toggle the 'Case Sensitive' checkbox. When disabled, 'Apple' and 'apple' are treated as identical duplicates.

What does 'Trim Whitespace' do?

Trimming whitespace ignores leading and trailing spaces or tab indents so that ' data ' and 'data' are properly recognized as the same line.

Can I clean email lists and CSV columns?

Yes. You can paste thousands of emails, IDs, keywords, or CSV entries to immediately strip repeats and empty lines.

All Text Utilities

List Cleaner

Remove Duplicate Lines

Filter out repeating rows, strip blank lines, and extract unique lists in seconds.

100% In-Browser Client-Side — Zero Server Uploads

Case SensitiveTrim WhitespaceRemove Empty Lines

Original: 0Unique: 0Removed: 0

Input List

Deduplicated Output

Effortless List Deduplication

When exporting data from spreadsheets, logs, databases, or user signups, duplicate entries frequently inflate file sizes and complicate workflows. PicoFix strips duplicates in milliseconds right in your browser memory without risking confidential customer or system data.