A tool for removing, checking, and counting duplicate lines.
This free online tool allows you to remove, check, and extract duplicate lines from text data. Simply copy and paste to process in real-time. It supports data pasted from Excel and spreadsheets, and since no data is sent to the server (client-side processing), you can use it with peace of mind regarding security. It's useful for various scenarios, such as creating unique datasets.
Here is a basic guide on how to use this tool to quickly remove duplicate lines and check counts with just copy and paste.
Paste the text you want to check or remove duplicates from into the "Input Data" area on the left. Processing happens instantly upon pasting, and you can see the "Input Lines" and "Duplicate Lines (Removed Count)" in real-time in the header.
The "Remove Duplicates" tab (Output Result) displays unique text with all duplicates removed. Click the "Copy" button at the bottom right to quickly copy it to your clipboard for use.
Switching to the "Check Duplicates" tab displays a list showing which lines were duplicated and how many times. You can download these results as a CSV file or copy and paste them into Excel, etc.
Automatically checks and deletes duplicate lines the moment you paste your text. Enjoy a smooth workflow with zero waiting time.
Easily check which lines are duplicated and how many times in a list format. Perfect for data analysis and list scrubbing.
No tedious registration or login required. Anyone can use all features for free, anytime.
All your input data is processed locally in your browser. No data is sent to our servers, keeping your sensitive information safe.
Anyone needing to quickly remove duplicates from massive text data like email lists or customer records.
Office workers wanting to easily clean up duplicate data by pasting directly from Excel or spreadsheets.
Developers who need to format server logs or error texts and quickly extract unique error messages.
