Duplicate File Finder
Scan files client-side with SHA-256 cryptographic hashing to isolate exact byte-for-byte duplicates.
Scan multiple files for exact duplicates
Drag & drop any collection of files to compute client-side cryptographic SHA-256 hashes
How it works
Upload File Collection
Drop photos, documents, videos, or archives to analyze.
Client-Side SHA-256 Hash
Your browser computes unique cryptographic hashes for each file to detect identical content regardless of filename.
Review & Audit Storage
Duplicate clusters are clearly grouped with calculated wasted disk space.
Frequently Asked Questions
It hashes the exact byte contents of each file using SHA-256. Even if two files have completely different names or extensions, they are flagged if their actual binary content is identical.
No. All hashing is performed directly on your device via the browser's hardware-accelerated Web Crypto API.
This tool is designed to find exact binary duplicates. If a single pixel or word is modified, the file is recognized as unique.