Text Deduplication – Remove Duplicate Lines & Words
Remove duplicate lines, words, or sentences from text. Clean lists, logs, and datasets with customizable options.
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Text Deduplication
Example Texts
Examples of Real-World Usage
8 real-world examples
Data Cleaning
Clean datasets by removing duplicate entries, ensuring data quality and accuracy for analysis.
Log File Processing
Remove duplicate log entries to reduce file size and make logs easier to analyze.
List Management
Clean email lists, contact lists, or any text-based lists by removing duplicate entries.
Content Writing
Remove duplicate sentences or paragraphs from documents to improve readability and reduce redundancy.
Code Cleanup
Remove duplicate lines from code files, configuration files, or data files.
Import/Export
Clean data before importing into databases or exporting from systems to prevent duplicate records.
Text Analysis
Prepare text for analysis by removing duplicates that could skew word frequency or statistical analysis.
File Optimization
Reduce file sizes by removing duplicate content, making files more efficient and easier to manage.
Key Features of Text Deduplication
Remove duplicates with precision and control.
Multiple Modes
Remove duplicates by lines, words, or sentences.
Instant Processing
Real-time deduplication with live preview and statistics.
Keep Options
Choose to keep first occurrence, last occurrence, or all unique items.
Data Cleaning
Perfect for cleaning lists, logs, and datasets.
Case Sensitivity
Option to ignore or respect case when detecting duplicates.
Export Options
Download cleaned text with duplicates removed.
Statistics
See detailed statistics about duplicates found and removed.
Batch Processing
Process entire files or multiple text blocks at once.
How to Use
Simple 4-step process
Step 1
Paste or upload your text containing duplicates.
Step 2
Choose deduplication mode: lines, words, or sentences. Select to keep first or last occurrence.
Step 3
See instant preview with statistics showing how many duplicates were removed.
Step 4
Copy the cleaned text or download it as a file.
Frequently Asked Questions
Everything you need to know about our process, pricing, and technical capabilities.
See Full FAQText deduplication is the process of removing duplicate lines, words, or sentences from text content to clean and organize data.
Keeping first occurrence preserves the first instance of each duplicate and removes subsequent ones. Keeping last occurrence preserves the final instance and removes earlier ones.
Yes, you can choose. With case-sensitive mode, 'Hello' and 'hello' are treated as different. With case-insensitive mode, they're considered duplicates.
Yes! Word deduplication removes duplicate words while preserving the order of unique words in your text.
Sentence deduplication identifies and removes duplicate sentences, useful for cleaning documents and articles.
Yes, the tool preserves the original order of your text while removing duplicates based on your selected mode.
Yes, you can upload text files. The tool processes them instantly in your browser. All processing is client-side, so your data stays private.
Yes, the tool handles all Unicode characters including special characters, emojis, and accented letters.
No, all processing happens locally in your browser. Your data never leaves your device.
Yes, Text Deduplication is completely free to use with no limits on text size or number of deduplications.
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