Coolmuster Android Assistant helps Android users to manage/backup/restore Android data from the computer.
WinDirStat - WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
WizTree - WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Coolmuster Android Backup Manager - Coolmuster Android Backup Manager is the one-stop backup and restore software for Android data, which enables you to back up and restore Android data with 1 click, such as contacts, SMS, call logs, media files, etc.
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.
MobiKin Assistant for Android - MobiKin Assistant for Android is a simple and easy to understand programming that is helpful to deal with the archives and projects present on your Android telephone or tablet.