Find exact duplicate photos, safely

One command prints which photos in a folder are byte-for-byte copies, which one it would keep, and how much space the extras use. It is a dry run: it never deletes or moves anything.

python3 tidy_dupes.py ~/Pictures

Download tidy_dupes.py (about 100 lines, plain Python 3, no extra packages).

sha256: 8ba96b8203cca12dc30764d667b83432009c09bbbd63e5dff35f97501885bcfd
Check it with sha256sum tidy_dupes.py. Read the source before you run it: github.com/ZoomZeem/tidy-dupes (MIT licence).

What you need

The free, open-source czkawka_cli on your PATH. Check the file's sha256 on the release page before you run it.

What it does and does not do

• Exact copies only (same bytes), including small files; empty files are ignored. It does not find "similar" photos.
• Tested on JPEG and BMP in a small synthetic folder. PNG and WebP are not verified.
• Keeps the oldest-modified file in each group and lists the rest as copies.
• This is an early experiment, not a finished product. Czkawka and its authors are not involved.

Built by the Zoomzeem studio.