From February 2017, tourist holding valid passport of 40 countries can get online entry visa to Vietnam. E-Visa can be applied personally or through inviting organizations, and is valid for maximum for 30 days with single entry. Fee is paid via electronic payment gateway and will not be refund in case of the application refused.
For further information, please check: https://evisa.xuatnhapcanh.gov.vn/web/guest/trang-chu-ttdt
*** Applying for E-visa: https://evisa.xuatnhapcanh.gov.vn/en_US/web/guest/khai-thi-thuc-dien-tu/cap-thi-thuc-dien-tu