Duplicate file finder
Spot identical files by checksum
Find files that are byte-for-byte identical by comparing SHA-256 checksums, even when the names differ. Add a batch of files and instantly see which ones are duplicates — all hashed locally.
How it works
- Open the tool and add your file (or paste your text).
- Adjust the options — everything previews instantly.
- Download the result. Done.
Private by design
This tool runs 100% in your browser. Your files are never uploaded to a server, never stored, and never seen by anyone — close the tab and nothing remains.
Free, no limits
No account, no watermarks, no daily caps. If you also need full design tools, the Ijodly editor is one click away.
Frequently asked questions
Is Duplicate file finder free to use?
Yes — Duplicate file finder is completely free. There is no account to create, no watermark on your results and no daily limits.
Are my files uploaded when I use Duplicate file finder?
No. Duplicate file finder runs entirely in your browser. Your files never leave your device and nothing is stored on a server — close the tab and nothing remains.
Do I need to install anything or sign up?
Neither. Open the page, use Duplicate file finder straight away and download your result. No install, no signup.