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EthanBrown's avatar
EthanBrown
Iron Contributor
May 16, 2025

Best duplicate file checker for quickly finding duplicates on Windows or Mac?

Hi everyone, My wife has an old laptop running Windows 11 at work and Ma Mani at home. She has been struggling with cluttered storage on the computer due to years of accumulating files. As you can s...
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GeorgeClooney's avatar
GeorgeClooney
Iron Contributor
May 16, 2025

Simply put, a ​​duplicate file check​​ is a process that identifies and manages duplicate files stored on a computer, external drive, or cloud storage. It helps free up space and organize data.

How duplicate file checker works

Step 1: Compare all the files from the input source. Uses algorithms to generate unique properties for files. Or ​​use byte-by-byte comparison. It reads file content directly for 100% accuracy (slower but thorough).

Step 2: The tool scans selected folders or drives on your PC or Mac. After that hat, it will compares files using one or more methods above.

Step 3: Wait a couple of minutes and you will see all duplicates on listed on the program interface.

Step 4: Delete or remove the duplicate files.

Use cases of duplicate file checker

  • Free up storage space on computer
  • Easily organize photos, documents, or backups.
  • Avoid version conflicts (e.g., multiple copies of the same project file).

Resources

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