Detect and manage duplicate photos

On the Lightroom on the web homepage, select Photos > All Photos.

Select Clean Up > Duplicates.

In the Duplicates tab, select Duplicate settings   to filter duplicate images by:

• Only exact duplicates: Photos that are visually identical, such as a file imported more than once.
• Include similar photos: Photos that closely resemble one another without being identical, such as near-matches from the same moment.
• RAW + JPEG/HEIF pairs: The same shot saved as both a RAW file and a JPEG or HEIF file. Review these to decide whether to keep one or both file formats.

Use the Group size range slider to select which groups appear in the grid. Move the slider to focus on smaller groups, such as pairs, or to include larger groups with more photos.

Within each group, photos appear in the same order every time: oldest capture date first, then by file name when capture dates match. In a RAW + JPEG or RAW + HEIF pair, the RAW file appears first.

Select either of the following to reduce a group to only the photos you want to keep:

• Keep only this: Hover over a photo, then select More options   > Keep only this. Lightroom keeps that photo and removes the other duplicates in its group.
• Keep selected: Select one or more photos, and then select Keep selected in the selection bar. Lightroom keeps the selected ones and removes the rest.

When you remove duplicates this way, Lightroom merges their information into the photo you keep, so nothing is lost. The highest rating is applied, a pick flag is carried over, keywords are combined, and the kept photo is added to any albums the removed photos belonged to.

You can keep a set of photos in the duplicate view and use the Mark as Reviewed button to exclude them from duplicate detection.

Select Delete to delete the duplicate image.