Duplicate file finder
Find byte-identical files by size, SHA-256 and a final direct byte comparison.
Accepted files: see this tool’s format requirements. Multiple files supported. Up to 512 MiB in total.
Up to 2,000 files, 512 MiB total and 256 MiB per file. Matching hashes are checked with a direct byte comparison. Very large comparison workloads are bounded and may require a smaller folder. Nothing is deleted. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Duplicate file finder
- Choose the folder you want to inspect.
- Review the options and run the check.
- Read the result and download the report.
Useful next steps
Choose one local folder
Use the folder picker and confirm the files you want to inspect. Nested paths are preserved. Choosing another folder replaces the selection.
Review the result
Find byte-identical files by size, SHA-256 and a final direct byte comparison.
Download your report
Save the report or manifest to keep the results. Your source files are unchanged, and the processing stays in your browser.