Download the free AllDup software. Easily remove duplicate files from your PC. Get the full Installer file for new installations or the small Update file for existing versions.

AllDup is a freeware tool for searching and removing file duplicates on your Windows computer. The fast search algorithm find duplicates of any file type, e.g., text, pictures, music or movies.

Access the official AllDup Manual. Learn how to effectively find and delete duplicate files, similar pictures, music, and hard links. Detailed guides on search methods, filters, and options.

Mit AllDup steht Ihnen die kostenlose Lösung zum Suchen und Entfernen von doppelt vorhandenen Dateien unter Microsoft Windows zur Verfügung. AllDup durchsucht Ihre Festplatten, Netzlaufwerke …

Use the AllDup File Manager to delete, copy, move, or rename selected files from search results. Learn how to configure group processing, set up a backup folder, and apply filters.

Explore the complete AllDup version history, clearly documented with new features, improvements, and bug fixes. See the latest update (July 14, 2025) for new selection commands and updated translations.

Scan and compare multiple file types with AllDup. With AllDup Duplicate Finder you can easily and quickly search your computer for duplicate files of all types.

Explore AllSync Business, Professional, and Home Editions, plus AllDup. Get the professional solution for data synchronization, backup, imaging, and archiving under Windows.

Access the complete AllSync 4 Manual. Find detailed guides on installation, licensing, features, system requirements, Profiles, QuickSync, Scheduler, and advanced command line tools.

AllDup is your reliable tool to help find and remove duplicate files in your computer. This freeware is capable of searching for all types of files in whatever format they may be stored in and easily deleting …