Can I remove duplicates case-insensitively?

Yes! Toggle "Case sensitive" off to treat "Apple" and "apple" as duplicates. The original casing of the first occurrence is preserved.

Duplicate Line Remover — Remove Duplicate Lines Online

Overview

Duplicate Line Remover is a free, browser-based text tool utility available on ToolifHub. Remove duplicate lines from text with case-insensitive matching. Whether you're a beginner or a seasoned professional, this tool gives you fast, reliable results without any registration, download, or hidden fees. ToolifHub hosts hundreds of free online tools across YouTube, SEO, development, AI, productivity, and more — all designed to help you work smarter and faster.

About Duplicate Line Remover

Paste a list of lines and instantly remove all duplicates. Supports case-sensitive and case-insensitive matching, with optional whitespace trimming. See exactly how many duplicates were removed.

Key Features

Purpose-built for remove duplicates tasks with optimized algorithms

100% free with no sign-up or account required

Runs entirely in your browser — your data never leaves your device

Works on desktop, tablet, and mobile devices

Instant results with no waiting or processing delays

Part of ToolifHub's curated Text Tools collection

Benefits

Streamline your remove duplicates workflow in seconds instead of minutes

Save hours of manual work with automated processing

Improve accuracy and eliminate human error

Boost productivity without paying for expensive software

Access professional-grade functionality at zero cost

Perfect for students, professionals, freelancers, and businesses

How to Use Duplicate Line Remover

Navigate to the Duplicate Line Remover page on ToolifHub

Enter or paste your input data into the tool interface

Configure any available options or settings for your use case

Click the action button to process your input instantly

Review the results and copy, download, or use them directly

Explore related tools in the same category for additional functionality

Use Cases

Content Creators & YouTubers

Use Duplicate Line Remover to optimize your content workflow, improve discoverability, and save time on repetitive remove duplicates tasks.

Digital Marketers & SEO Professionals

Leverage Duplicate Line Remover as part of your marketing toolkit to analyze, generate, and optimize remove duplicates elements for better campaign performance.

Developers & Technical Users

Integrate Duplicate Line Remover into your development workflow for quick remove duplicates processing without leaving the browser or installing dependencies.

Students & Educators

Access Duplicate Line Remover for free classroom projects, assignments, and learning exercises related to remove duplicates.

Small Business Owners

Reduce operational costs by using Duplicate Line Remover instead of paid alternatives for everyday remove duplicates needs.

Duplicate Line Remover