WinDirStat is a disk usage statistics viewer and cleanup tool for Microsoft Windows

Nomic Developer API SDK

Remove duplicates from MASSIVE wordlist, without sorting it (for dictionary-based password cracking)

A plugin that does one thing only: Detect and manage duplicate items in Zotero.

duplicate photo finder for Immich - find and remove similar images

Near Duplicate Video Detection (Perceptual Video Hashing) - Get a 64-bit comparable hash-value for any video.

Filter, Sort & Delete Duplicate Files Recursively

⚡ Check your npm modules for unused and duplicate dependencies fast

The Panako acoustic fingerprinting system.

Interactive code for image similarity using SIFT algorithm

Easily delete your YouTube Music library (and manage playlists)

Vidupe is a program that can find duplicate and similar video files. V1.211 released on 2019-09-18, Windows exe here:

Duplicates Detector is a cross-platform GUI utility for finding duplicate files, allowing you to delete or link them to save space. Duplicate files are displayed and processed on two synchronized panels for efficient and convenient operation.

CLI utility to find near duplicate images and remove all but the best copy.

Fast Near-Duplicate Image Search and Delete using pHash, t-SNE and KDTree.

Find similar audio files easily

Command-line program for Content-Based Image Retrieval of images and videos. Includes tools for general search and de-duplication.

AI-powered GitHub issue intelligence - semantic duplicate detection, cross-repo search, and intelligent issue routing

A collection of free-text bug reports for duplicate issue identification

Duplicates finder for various source code formats.

CLI tool that fast checks if your bundle contains multiple versions of the same package, only by looking in package.json.

Remove Duplicate Messages

Nextcloud Media Duplicate Collector application

Detecting near-duplicate videos by aggregating features from intermediate CNN layers

An open-source library that leverages Python’s data science ecosystem to build powerful end-to-end Entity Resolution workflows.

Apps to find duplicate files including same/similar images & videos (with computer vision/AI)

Advanced Duplicate File Finder for Python

A uniquely crafted image viewer and editor with options to organize files, and maintain large lists of image files for slideshows, dupes detection or other purposes.

Find duplicate files quickly.

Yet Another Dupes Finder