About Duplicate File Finder & Matcher
Scan batches of files in your browser using fast cryptographic hashing. Group exact binary duplicates together, view duplicate file counts, and calculate reclaimable storage space with zero cloud upload.
Key Capabilities & Features
- High-speed multi-file SHA-256 chunk hashing
- Automatic grouping of identical duplicate copies
- Calculates total wasted storage bytes
- No software installation required
How to Use Duplicate File Finder & Matcher
1
Select Files
Select multiple files or photos to scan for duplicates.
2
Run Duplicate Check
Click "Run Duplicate Check" to compare fingerprints.
3
Review Audit
Inspect duplicate groups and total reclaimable storage space.
Privacy & In-Browser Execution Guarantee
All file scanning and fingerprint hashing occurs locally in memory.
Frequently Asked Questions
How are duplicate files identified?
The tool computes cryptographic SHA-256 fingerprints across file chunks and sizes. Two files with matching fingerprints have identical binary contents even if their names differ.