فاحص الحلال
depends on the source.
Fish, plant, and halal-slaughtered gelatin: fine by agreement. Pork gelatin: prohibited by most fatwa bodies; a minority permit it via complete transformation (istihala). Check the label or look for certification.
Built from these answers
Educational, not a personal ruling. For complex cases, confirm with a qualified scholar, and for money and inheritance, with local law.