Time Machine, Duplicati, BorgBackup, Systemback, Déjà Dup, Back In Time, ToolWiz Time Machine, Rsnapshot, Windows File History, Restic, Mondo Rescue, GS RichCopy 360, Time Machine for Linux, Duplicacy, rdiff-backup, Areca Backup, Cronopete, Zinstall Backup, Nero BackItUp, Rebel Backup, snaprd, Stellar Insta Backup, Oops! Backup are some alternatives to TimeShift.