The Essence
Al-Khaaliq is the One who brings things into existence from nothing. He determines the exact measure, shape, and nature of all things before they even exist.
In the Quran
هُوَ اللَّهُ الْخَالِقُ الْبَارِئُ الْمُصَوِّرُ
"He is Allah, the Creator (Al-Khaaliq), the Inventor, the Fashioner; to Him belong the best names. (Surah Al-Hashr 59:24)"
In Your Duas
اللَّهُمَّ كَمَا حَسَّنْتَ خَلْقِي فَحَسِّنْ خُلُقِي
"O Allah (Al-Khaaliq), just as You have made my physical creation beautiful, make my character beautiful as well."
— Musnad Ahmad 3823