| Price from | $2/mo | — |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 3 | 0 |
| Spec score · Fax Server Software | 8.6 (#2) | 7.3 (#19) |
| Product | Faxbot is an open-source, self-hostable fax API and automation platform. | Zetafax is fax server software for businesses that distributes documents electronically. |
| Security | The maker describes API-key access, HTTPS and webhook-signature verification support, and audit-friendly events; its HIPAA guide says operators must configure and document required controls. | The Exchange Online Connector uses SSL encryption for faxes and delivery reports passing between Zetafax Server and Exchange Online; the page says enhanced Zetafax security features can meet HIPAA requirements. |
| Support | Enterprise services include production hardening and 24/7 support; the maker directs customers to contact sales. | Equisys provides Zetafax support resources including user guides, documentation, software updates, and a knowledgebase. |
