Duplicate File Finder

Upload multiple files and find duplicates by comparing SHA-256 checksums. Groups identical files together so you can identify and remove duplicates.

Select multiple files to check

Files compared by SHA-256 checksum — nothing uploaded

Frequently Asked Questions

How are duplicates detected?▼

By comparing SHA-256 checksums — identical files have identical hashes regardless of filename.

Are files uploaded to a server?▼

No. Files are hashed in-browser using the Web Crypto API.