Duplicate File Finder

Find exact duplicate file contents using SHA-256. Compare local files even if their names differ and download a duplicate report.

Open the interactive workspace with JavaScript enabled. Preview and editing are free.

How to use Duplicate File Finder

1. Choose at least two files.
2. Run a free local content analysis.
3. Review duplicate groups and export the report.

Output and supported files

Duplicate report JSON. 100 files; 200 MB total; 50 MB each. No files are deleted. Similar-looking photos with different bytes are not exact duplicates.

Do my files leave my device?

Your file contents stay in your browser. Account, credits and tool-usage requests reach Oxodian.

Related tools

Files are processed on your device. Sign in for five daily free credits; one export or started session costs one credit. Unused daily credits do not roll over. Device and file limits apply.