List of the Top 4 Free Fax Server Software in 2025

3CX is a versatile, software-driven IP PBX built on open standards that delivers comprehensive Unified Communications straight out of the box. It caters to businesses of all sizes and across various sectors, offering a full suite of features that range from mobility and presence indicators to sophisticated call center functionalities, all at a significantly reduced cost. This platform is particularly well-suited for remote work environments, featuring mobile applications, video conferencing capabilities, and live chat integration for websites. Installation, management, and maintenance of the PBX are straightforward, allowing users to easily handle it themselves on their own hardware, a dedicated server, or via a cloud environment. Alternatively, users can opt for 3CX's hosting services to simplify their setup even further. With its user-friendly design and extensive feature set, 3CX empowers companies to enhance their communication strategies effectively.

CocoFax is a web-based fax solution that enables users to send and receive secure faxes over the internet using any device. By facilitating online management of faxes, it effortlessly integrates into your everyday business operations. This service not only enhances efficiency but also provides a modern alternative to traditional faxing methods, making it an essential tool for contemporary workplaces.

Fax.Plus is a trustworthy and secure online fax solution designed for individuals, small to medium enterprises, healthcare professionals, and various organizations, enabling them to effortlessly send and receive faxes via their computers or mobile devices. Key features of Fax.Plus include: * Compliance with HIPAA regulations for secure faxing * Absence of certain integration options * Seamless integration with G Suite * An encrypted archive that stores all sent and received faxes for later access * Availability across multiple platforms, including web, Android, and iOS * The option to obtain toll-free fax numbers * Global coverage for users around the world. With its variety of features, Fax.Plus caters to diverse faxing needs while ensuring security and accessibility.

ICTFax SP Edition provides white label and multi-tenant capabilities, empowering clients to deliver hosted or cloud-based online fax services to their own customers. This includes features such as inbound and outbound online fax services, email to fax and fax to email functionalities, as well as ATA and extension fax services. Users can benefit from daily or monthly quota-based allocations, while enjoying the flexibility of adding unlimited users, extensions, and DIDs. Additionally, this solution allows for seamless scalability to meet the growing demands of businesses in need of reliable fax services.