Steam Library Manager is an Open Source utility that allows you to backup, restore, move your Steam games, and be especially useful for users with large game libraries.
If you are an avid gamer, you have probably amassed a large assortment of games. Steam Library Manager gives you the option forgo deleting games but instead offers you an alternative and easy way to manage them. You can sort games by name, ID size on disk, to name a few of the available filters.
Using Steam Library Manager is relatively simple; it is presented intuitively with all options readily in reach. It displays all your current games from the home page and will also allow you to view the possible installation paths. Steam Library Manager compresses your game files in backup mode to save space (it does offer compression type options), but the trade-off for space is this process can be time-consuming, especially with larger game files.
Steam Library Manager will help manage your Steam libraries. The intuitive interface lends itself to easy copying, moving, or backing up your games between Steam and the Steam Library Manager's (backup) libraries.
Editor's Note:
You will likely get a warning from Chrome or Defender that this is an uncommon download. This is a common problem with new or unknown files of this type.