

We appreciated services that made uploading a file as simple as dragging and dropping or connecting a cloud storage account, as well as those that provided cover-page templates and the option to save fax numbers in an address book. User-friendly interface and convenient fax features: Sending a fax should be as easy as sending an email.To test fax receiving, we faxed our top contenders using HP’s fax testing service and faxed twice from a laptop with a fax modem connected to a VoIP line. Fax reliability and quality: For each service we considered, we sent three test faxes to a virtual Kall8 phone number: a one-page PDF, a one-page DOC, and a 25-page PDF.For professional and HIPAA-compliant use, we focused on options that had straightforward subscription pricing. Free faxing or low fees: For occasional faxing, we looked for services that let you fax for free or charge no more than a one-time $1 to $2 fee to send a long document.
