중복 파일 찾기
중복된 파일 찾기
브라우저에서 실행 · 업로드 없음
이 도구와 페이지의 안내는 현재 영어로만 제공됩니다. 동작은 똑같으며, 모든 처리는 브라우저에서 이루어집니다.
Drag & drop a folder or files here
or
Any files, any number, including whole folders with subfolders.
Your files stay on your device. Nothing is uploaded.
Files only count as duplicates when every byte is the same (same size and the same SHA-256 fingerprint), whatever their names. Browsers can't delete files, so remove the extra copies yourself; the list shows where each one is.
브라우저가 너무 오래되어 이 도구를 실행할 수 없습니다. 브라우저를 업데이트하거나 최신 Chrome, Edge, Firefox, Safari를 사용해 주세요.
- 아무것도 기기 밖으로 나가지 않음
- 서버의 파일 크기 제한 없음
- 가입 불필요, 워터마크 없음
- 무료
How to find duplicate files
- Choose a folder, or drop folders and files on the page.
- Press Find duplicates. Files are compared on your device.
- Review the groups of identical files and remove the extra copies yourself; download the list as CSV if you like.
How it works
- Only files of the same size can be identical, so those are the only ones read.
- Their full content is fingerprinted with SHA-256: files with the same fingerprint are byte-for-byte the same.
- Large files are read in pieces, so folders of any size work; the time needed depends on your disk.
Good to know
- Browsers can't delete or move your files, so nothing is changed on your disk.
- Photos that look alike but were saved differently (resized, re-compressed) are not duplicates here: only exact copies are found.
- Empty files are counted but not listed.
자주 묻는 질문
Is my folder uploaded?
No. The files are read by your browser on your device. Nothing is sent anywhere.
Why is choosing a folder asking for permission?
Browsers ask before a page may read a whole folder. The page only reads the files to fingerprint them.