Unique Phone Number Extractor
Extract phone numbers that don't exist in a previous list.
Tool Guide
Introduction to the Online Duplicate Data Removal Tool
The Online Duplicate Data Removal Tool compares two lists and removes from List B any data that already appears in List A, producing the "difference of List B relative to List A." It's suitable for common scenarios such as deduplicating lists, keyword filtering, data cleaning, and text comparison.
The tool supports batch processing, with one data item per line. It's simple and intuitive to use, and results can be copied with one click or exported as a TXT file for easy further processing.
Key Features
1. List Difference Extraction: Automatically removes items in List B that are duplicated in List A, keeping only items unique to B.
2. Batch Text Processing: Supports comparing multiple lines of text at once, improving deduplication efficiency.
3. Fast Result Export: Supports copying results and downloading TXT for easy archiving and sharing.
Tutorial
Step 1: In "List A," paste the original reference data, one item per line.
Step 2: In "List B," paste the data to be filtered, one item per line.
Step 3: Click "Start Extraction," and the system automatically removes content in B that already exists in A.
Step 4: View the remaining data in the results area and copy or export it as needed.
Use Cases
Suitable for office and development scenarios such as deduplicating customer lists, cleaning campaign numbers, deduplicating and filtering keyword libraries, comparing log data, and analyzing differences between text lists.
FAQ
Q: Does this tool automatically deduplicate the results?
A: No. The tool's core logic is "B minus A"; it does not additionally deduplicate items within B.
Q: Are empty lines included in the calculation?
A: No. The tool automatically ignores empty lines to avoid interfering with the results.
Q: Does it support importing/exporting Excel directly?
A: Currently, it supports pasting text and exporting TXT. For Excel processing, you can first paste text or use it together with other Excel tools.