Is my list data transmitted to an external server?

No. All text parsing, deduplication, and sorting executes strictly in your browser runtime.

Can it sort numeric items containing decimals or negative numbers?

Yes, the numeric ascending and descending modes parse numerical values on each line accurately.

Text & Data

List & Line Cleaner / Sorter

Deduplicate, sort alphabetically or numerically, trim whitespace, add prefixes, suffixes, line numbering, and filter lines instantly in your browser.

Quick Answer & Summary

A List Cleaner cleanses and reorganizes text lists by removing duplicate entries, sorting lines alphabetically or by length, trimming whitespace, and adding prefixes or suffixes client-side.

Input Lines

Output Lines

Duplicates Removed

Empty Lines Cleaned

Original List / Text

Transformation Rules

Deduplicate lines

Trim Whitespace

Remove Empty Lines

Case-sensitive Dupes

Sort Order

Case Transformation

Prefix

Suffix

1. 2. 3. Numbers

Keep lines containing

Exclude lines containing

Cleaned & Formatted Output

10. strawberry
apple
banana
grape
kiwi
mango
orange
watermelon

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Toolbox Editorial TeamVerified Authors

Systems & Security Engineers • Applied Cryptography & High-Performance Web Tools

Updated: August 2026

100% In-BrowserZero server storage

Standards AuditedRFC & ISO compliant

Peer ReviewedEditorial Policy

Documentation & Guide

How to Use List & Line Cleaner / Sorter

Paste your lines or list

Paste any multiline text, comma-separated IDs, or raw data into the left input editor.

Select cleaning rules

Toggle deduplication, select alphabetical or numeric sort orders, trim whitespace, or filter specific keywords.

Copy the cleaned result

One-click copy the processed output directly into your clipboard with zero server logging.

Pro Tips

Use Case-Sensitive Deduplication if your keys or tokens require exact casing.

Add prefixes and suffixes to quickly format SQL IN-clauses or JSON arrays.

Frequently Asked Questions (PAA)

Related Tools & Converters

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Text Diff Checker

Compare two pieces of text and view line-by-line differences.

Authoritative Standards & Citations

Calculations and algorithms on this page are implemented and verified in strict accordance with the following official technical specifications:

IETF (Internet Engineering Task Force)

RFC 7519: JSON Web Token (JWT)

Standardized compact, URL-safe means of representing claims to be transferred between two parties.

W3C Recommendation

Web Cryptography API Specification

Standard JavaScript API for performing basic cryptographic operations in web applications.

IETF Standards Track

RFC 4122: A Universally Unique IDentifier (UUID) URN Namespace

Definition of uniform format and generation algorithms for UUIDs.