Linux Softwares to Duplicate Image Finder

F-Spot is a discontiued, but capable photo management application specifically designed for the GNOME desktop environment. It offers a range of features for organizing, editing, and sharing personal photo collections, supporting various image formats.

gThumb is a versatile image viewer and organizer for the GNOME desktop environment. It offers a comprehensive suite of tools for browsing, managing, and performing basic edits on your photo collection. Beyond simple viewing, gThumb facilitates organizing images with tags, finding duplicates, and executing batch operations like renaming and format conversion, making it a practical choice for digital photo management.

digiKam is a powerful, free, and open-source professional photo management application designed to handle large collections of digital photographs. It provides a comprehensive set of tools for organizing, tagging, editing, and publishing high-quality images across various platforms.

Picasa was a free photo management and editing software developed by Google. It offered a user-friendly interface for organizing, editing, and sharing digital photos. Although discontinued, it remains a classic tool for many users due to its simplicity and robust feature set for its time.