FaxZero is an online service that allows users to send faxes for free or at a low cost. It is designed for those who need to send documents quickly without the need for a traditional fax machine. Users can upload their files, enter the recipient's fax number, and send the fax directly from their computer. The service supports various file formats, including PDF and Word documents. While sending faxes is free for a limited number of pages, users can opt for paid plans for larger documents or additional features. FaxZero is a convenient solution for both personal and business needs.