Find Duplicate Lines
Scan your input and report repeated lines with counts. This makes it easy to identify duplicates in data, lists, and pasted text.
Spot repeated content quickly
Paste or type your text, then use the tool to detect repeated lines and view their count. This helps with cleanup, validation, and list review tasks.
Example
Input: alpha beta alpha gamma beta Output: alpha - 2 beta - 2
Best for
Use it to review data exports, check repeated entries, clean lists, and quickly find duplicate content before editing or publishing.
Frequently asked questions
How do I find duplicate lines?
Paste your text into the input field and click the button. The tool lists repeated lines and shows how many times each one appears.
Is this useful for data review?
Yes. It is helpful when checking exports, lists, and pasted data for repeated entries before cleanup or publishing.
Does it keep my text private?
Yes. The full scan runs locally in the browser and nothing is uploaded or saved.