FolderMatch - Backup Your Files or Hard Drive, Protect Your Data, Compare and Synchronize Folders on Your Computer (Windows Software) Easily, quickly, and reliably compare and synchronize two folders, two drives, or two computers. Safely backup photos, emails, contacts, and documents. See the exact text differences between two text files, Excel spreadsheets, Microsoft Word, Adobe PDF, or RTF documents. Find and remove all duplicate files on your machine. Even if their names are different! Much more!