The Egyptian government said it wanted to simplify travel and speed up waits at border control, offering an alternative to applications upon arrival or through the Egyptian Consulate prior to travel.
Citizens from 46 countries across Europe, Asia and Australasia will be eligible.
The e-visas can be obtained through a simple online application form.
A single-entry tourist visa costs $25 (£19) while multiple-entry tourist visas cost $60 (£45), payable by credit or debit card.
E-visas are valid for a maximum of three months. Travellers are advised to apply at least seven days in advance of departure.