O Thunar o se faila faila mo Linux ma isi Unix-like system, na muamua tusia e faʻaaoga ai le GTK + 2 toolkit ma mulimuli ane tuʻuina atu i le GTK + 3 toolkit. Na amata ona vaʻaia ma Xfce i le version 4.4 RC1 ma mulimuli ane. Thunar na atiina ae e Benedikt Meurer, ma na muai fuafuaina e sui XFFM, Xfce's faila faila muamua. Na taʻua muamua o Filer ae na suia i Thunar ona o se igoa feteʻenaʻi. Ua mamanuina Thunar e amata vave ma sili atu ona tali atu nai lo isi faila faila Linux, e pei o GNOME Files ma Konqueror. Ole avanoa e maua ile GNOME Accessibility Toolkit. E pei o le isi vaega o Xfce, ua mamanuina Thunar e tausisia tulaga, e pei o na o loʻo taʻua i le freedesktop.org. Thunar e faigofie ma mama i le mamanu, ae o lona gaioiga e mafai ona faʻalauteleina e ala i plugins.