Duplicate cleanup sounds easy until you realize that the “extra” photo might be the only one where everybody is smiling. A safe cleanup process starts with a distinction.
Exact duplicates vs. similar pictures
An exact duplicate is the same file content, often detectable with a cryptographic hash. A near-duplicate might be a resized export, an edited photo, a burst shot, or a different moment captured seconds later. Similarity is a suggestion, not permission to delete.
1. Back up before reviewing
Make a verified backup of your originals. Confirm that the backup includes photos, videos, and any metadata you care about. Some library apps synchronize deletions across devices, so “delete on one device” may not be reversible everywhere.
2. Begin with the obvious matches
Start with byte-for-byte identical files. Even then, check whether copies are stored in different folders or systems for a reason. Moving them to a review area is safer than permanently deleting in bulk.
3. Review lookalikes side by side
For similar images, compare sharpness, expressions, cropping, resolution, edits, and any notes or metadata. Keep multiple versions when each has meaning. A burst sequence of a child's first steps isn't clutter merely because frames look alike.
4. Use a reversible process
Favor a trash or quarantine area with a clear recovery window. Avoid automatic permanent deletion and emptying trash immediately. Restore a test image before trusting any cleanup workflow.
5. Keep a small maintenance habit
Review one trip or event at a time. That is easier and safer than trying to purge a decade of photos in one sitting.
What Octui is exploring
We are testing ways to surface duplicate and similar images and make review less exhausting, while leaving important decisions with the person who owns the memories. Face matching and similarity work remain under evaluation; this guide does not describe an already-shipped automatic cleanup tool.