Double Commander is a cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.
Free data backup software to synchronize files and folders
FreeFileSync is a free Open Source software that helps you synchronize files and synchronize folders for Windows, Linux and Mac OS X. It is designed to save your time setting up and running data backups while having nice visual feedback along the way. _______________________________________________________________ Support FFS with a donation: https://www.freefilesync.org/donate.php
A cross platform file and folder mass renamer, allows many different renaming operations in a GUI. Please note that development has moved to GitHub: https://github.com/metamorphose