WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
Dr.Fone Toolkit - dr.fone toolkit has all the tools you need to manage your iOS or Android smartphone.
TreeSize - TreeSize tells you where precious disk space has gone to.
CopyTrans Backup Extractor - Recover your photos, videos, contacts, messages, notes and more
SpaceSniffer - SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.
iBackup Extractor - The best iTunes and iPhone Backup Extractor. Backup, Extract and Restore from your iPhone, iPod Touch or iPad. View and explore files from the backup of your SMS, Contacts, Calendars, Photos, Call Logs and more.