Find Duplicate Files by Content in Your Browser

2–500 files · 32 MiB per file · 256 MiB total

Getting started

Select two or more files, or choose one folder including its subfolders. Review each group before deciding what to keep on your device.

Before you use the result

Up to 500 files, 32 MiB per file and 256 MiB combined. Re-encoded images and videos generally have different hashes. Files stay on the device and review is read-only.

Try an example

note.txt and copy.txt each contain the three bytes abc. They form one group with 3 extra bytes. A third file containing xyz stays separate.

How it works

Files with unique sizes are skipped. The browser reads equal-size candidates one at a time and groups matching SHA-256 digests. Extra bytes count all but one copy per group.

Frequently asked questions

Find matching copies among selected files even after renaming. Review paths and the total size of extra copies in your browser.

How do I use Duplicate File Finder by Content?

Select two or more files, or choose one folder including its subfolders. Review each group before deciding what to keep on your device.

Does this tool upload my data?

Inputs and files are processed in your browser. Page-view analytics do not contain your tool input.

What should I check before using the result?