A will is a legal document which outlines what happens to your worldly possessions when you die. In order for a online will to be legally binding and to follow the rule of wills, it must tick a few legal boxes. The person writing the online will must be an adult and of sound mind The will must be signed in the presence of and by two independent witnesses These witnesses must be: Over 18 years old Have a clear view of the person writing the will signing it If all of these boxes are ticked then the rule of the will has been followed.