Free online fax services are offered on websites such as MyFax and FaxZero. These sites allow users to send faxes of uploaded documents using their computers.
Most free online fax services provide users a way to send basic faxes and often limit the number of pages that can be faxed per day. It is common for free online fax services to display advertisements as a way of keeping the services free.
Paid packages are often available that offer more options, such as unlimited use of the service. Paid packages also allow senders to send faxes from their computers without having advertisements displayed anywhere on the cover pages or within the faxes.