Lotte-Finder
Find similar photos on your computer – no photo uploads
How photo search works
Looking for photos of a particular dog, object or subject in a large collection? Select two or three varied reference photos. Lotte-Finder examines your local photos and shows the closest matches.
Three photos of Lotte are already loaded as examples. Replace them with your own if you are looking for something else.
Select the photo folder on your computer. Subfolders are included, and scanning starts as soon as possible.
Review matches in the gallery or slideshow. Copy original photos to a folder or USB drive.
1. Reference photos
Select 2–3 photos of the same subject
Three example photos of Lotte are preselected. You can replace or remove each one independently. At least two photos are required to search.
{n} of 3 reference photos selected
2. Select a photo folder
The button above progressively scans subfolders and analyzes photos as they are found (Chrome/Edge over HTTPS). With the alternative selection, the browser may pause for a while without showing progress.
The browser can only access the photo folder that you choose. You can cancel the search at any time.
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3. Matches
Matches are sorted by similarity. Click an image to view it locally in your browser.
Hide incorrect matches with ✕ for this search. Original files remain unchanged; the slideshow shows only the remaining matches. Use Undo to restore the last hidden match.
Save matching photos
Copy the original image files unchanged to a folder or USB drive. Rejected images are excluded. Existing files with the same name are never overwritten; a number is added instead.
Direct folder saving works in Chrome or Edge over HTTPS. Select a destination folder or USB drive in the browser dialog.
Lotte-Finder for Windows – Python edition
Prefer a desktop app? The earlier Windows edition includes a local SQLite image index, photo selection, copying of results and VLC image playlists. Your photos remain on your computer.
↓ Download Python edition for Windows (ZIP)Requires Windows and Python 3.11 or 3.12. Extract the ZIP and run STARTEN.bat. Dependencies and the AI model are downloaded on first launch. This is not a ready-made EXE installer.
Notes and frequently asked questions
Why use two or three reference photos?
Different angles, distances and ages help identify a subject in varying pictures. Each reference can be changed or removed independently.
Why is the first search slower?
The AI model must be downloaded first. Your browser then calculates image features for the selected files. Duration depends on the number of photos and your computer. A persistent image index is not yet included.
What does the similarity threshold mean?
Lower values show more possible matches, including false positives. Higher values are stricter and can miss real matches. Lower the threshold if you get too few results.
Which browsers work best?
For progressive folder scanning, use a recent Chrome or Edge browser over HTTPS. Other browsers can use the alternative folder selector.
What is included in a saved slideshow?
The saved HTML file contains resized copies of your displayed matches. You can open it later without Lotte-Finder or transfer it to another computer.
How can I save photos to a USB drive?
Remove incorrect matches using ✕, then select “Copy photos to folder / USB drive”. Choose your connected USB drive as destination. Original images are copied unchanged.