Download: Duplicate Cleaner [extra Quality]

Available on the Official Duplicate Cleaner Website or via the Microsoft Store . 2. CCleaner (Windows & Mac)

Casual users who want an easy, free tool for basic cleanup. Download: Get it from the Official CCleaner Download Page . 3. dupeGuru (Windows, Mac, & Linux)

Widely considered a professional standard, this tool is known for its "Image Mode" and "Audio Mode," which can find similar files even if they have different names.

One user reported finding 16 GB of wasted space in a single scan.

Power users who need deep filters and content-aware scanning.