How to use Duplicate File Finder
- Choose the source files or enter the requested value.
- Review detected facts, settings, and safety limits before processing.
- Download or copy only the result you have reviewed.
Duplicate File Finder
Find exact-byte duplicate files using size prefiltering and SHA-256 confirmation entirely in the browser.
You can also drop files anywhere in this panel.
Private by design. Only same-size candidates are hashed. No files are deleted or changed.
0 files · 0 B
Choose files or a folder.
Group candidates by byte size first and cryptographically hash only possible matches.
How OpenFileTools processes it
Local processing, explicit choices.
OpenFileTools performs this workflow locally after an explicit action. File bytes, paths, passwords, and results are not uploaded, persisted, logged, or added to URLs.
Questions, answered.
Is my input uploaded?
No. Processing stays in memory in this browser tab.
Does this change the original?
No. Any output is a separate download.
Related guide
Read the related guide