Duplicate File Finder
Find and remove duplicate files with multiple comparison methods.
Free & unlimited
All processing happens in your browser. No data is sent to any server.
About this tool
- 1
Add files or folders
Drag and drop files or select a folder to scan for duplicates.
- 2
Scan for duplicates
The tool compares files by content hash to identify exact duplicates, regardless of file name.
- 3
Review results
Duplicate groups are listed together so you can see which files are identical.
- 4
Remove or keep
Select which copies to delete and keep the ones you want to retain.
- Hash-based comparison ensures files are truly identical in content, even if they have different names.
- Sort results by file size to prioritize deleting the largest duplicates and free the most space.
- Review each duplicate group carefully; files in different folders may serve different purposes despite being identical.
- Content-based hash comparison for accurate duplicate detection
- Groups duplicates together for easy side-by-side review
- Displays file name, size, and location for each match
- Selective deletion with keep/remove checkboxes
- Works entirely in the browser without uploading files
- Clean up photo libraries by finding and removing duplicate images
- Free disk space by identifying redundant copies of large files
- Audit project folders for accidentally duplicated assets or documents
- Verify backup integrity by confirming file hashes match originals
It computes a cryptographic hash (like SHA-256) of each file's contents. Files with identical hashes are exact duplicates, even if their names or locations differ.
No. The tool finds exact duplicates only. Files that are similar but have even one byte of difference will not be flagged.
No. All hashing and comparison happens locally in your browser. Your files never leave your device.