Quick Overview
- 1#1: OpenText RightFax - Enterprise-grade fax server software that securely handles high-volume faxing with deep integration into business applications like ERP and ECM systems.
- 2#2: Equisys Zetafax - Robust fax server solution for SMBs and enterprises enabling faxing directly from email clients and desktop applications with Outlook integration.
- 3#3: Solgenia FaxCore - Modern fax server platform offering on-premises, cloud, and hybrid deployments with advanced routing and OCR capabilities.
- 4#4: FaxBack - Secure fax server designed for regulated industries featuring automated workflows, failover, and compliance archiving.
- 5#5: InterFAX - Cloud-based fax server and API service for developers to integrate reliable fax sending and receiving into applications.
- 6#6: eFax Corporate - Scalable cloud fax server providing unlimited online faxing with mobile apps and enterprise-grade security for teams.
- 7#7: RingCentral Fax - Integrated fax server within a unified communications platform supporting fax-to-email and multi-user management.
- 8#8: Nextiva vFax - Cloud fax server service with desktop, mobile, and web apps for seamless business faxing and e-signatures.
- 9#9: iFax - User-friendly cloud fax server app for sending and receiving faxes from any device with HIPAA compliance options.
- 10#10: Fax.Plus - Secure online fax server with API support, unlimited storage, and easy integration for small businesses.
We evaluated these tools based on critical factors including feature robustness (such as automation, integration, and deployment flexibility), security standards, user experience across devices, and overall value, ensuring a balanced assessment for both small and large organizations.
Comparison Table
Fax server software is essential for modern communication, connecting traditional fax needs with digital efficiency. This comparison table explores tools like OpenText RightFax, Equisys Zetafax, Solgenia FaxCore, FaxBack, InterFAX, and others, detailing key features, integration capabilities, and practical use cases. Readers will discover how to match these solutions to their organizational goals, whether prioritizing scalability, cost, or compatibility.
| # | Tool | Category | Overall | Features | Ease of Use | Value |
|---|---|---|---|---|---|---|
| 1 | OpenText RightFax Enterprise-grade fax server software that securely handles high-volume faxing with deep integration into business applications like ERP and ECM systems. | enterprise | 9.5/10 | 9.8/10 | 8.5/10 | 9.0/10 |
| 2 | Equisys Zetafax Robust fax server solution for SMBs and enterprises enabling faxing directly from email clients and desktop applications with Outlook integration. | enterprise | 8.7/10 | 9.1/10 | 7.8/10 | 8.2/10 |
| 3 | Solgenia FaxCore Modern fax server platform offering on-premises, cloud, and hybrid deployments with advanced routing and OCR capabilities. | enterprise | 8.3/10 | 9.1/10 | 7.6/10 | 8.0/10 |
| 4 | FaxBack Secure fax server designed for regulated industries featuring automated workflows, failover, and compliance archiving. | enterprise | 8.2/10 | 8.5/10 | 7.4/10 | 7.8/10 |
| 5 | InterFAX Cloud-based fax server and API service for developers to integrate reliable fax sending and receiving into applications. | specialized | 8.2/10 | 8.5/10 | 8.8/10 | 7.8/10 |
| 6 | eFax Corporate Scalable cloud fax server providing unlimited online faxing with mobile apps and enterprise-grade security for teams. | enterprise | 8.1/10 | 8.4/10 | 9.3/10 | 7.2/10 |
| 7 | RingCentral Fax Integrated fax server within a unified communications platform supporting fax-to-email and multi-user management. | enterprise | 7.8/10 | 8.1/10 | 9.0/10 | 7.2/10 |
| 8 | Nextiva vFax Cloud fax server service with desktop, mobile, and web apps for seamless business faxing and e-signatures. | enterprise | 8.1/10 | 8.3/10 | 9.2/10 | 7.6/10 |
| 9 | iFax User-friendly cloud fax server app for sending and receiving faxes from any device with HIPAA compliance options. | other | 7.2/10 | 6.8/10 | 9.1/10 | 7.5/10 |
| 10 | Fax.Plus Secure online fax server with API support, unlimited storage, and easy integration for small businesses. | specialized | 7.8/10 | 7.5/10 | 9.2/10 | 8.1/10 |
Enterprise-grade fax server software that securely handles high-volume faxing with deep integration into business applications like ERP and ECM systems.
Robust fax server solution for SMBs and enterprises enabling faxing directly from email clients and desktop applications with Outlook integration.
Modern fax server platform offering on-premises, cloud, and hybrid deployments with advanced routing and OCR capabilities.
Secure fax server designed for regulated industries featuring automated workflows, failover, and compliance archiving.
Cloud-based fax server and API service for developers to integrate reliable fax sending and receiving into applications.
Scalable cloud fax server providing unlimited online faxing with mobile apps and enterprise-grade security for teams.
Integrated fax server within a unified communications platform supporting fax-to-email and multi-user management.
Cloud fax server service with desktop, mobile, and web apps for seamless business faxing and e-signatures.
User-friendly cloud fax server app for sending and receiving faxes from any device with HIPAA compliance options.
Secure online fax server with API support, unlimited storage, and easy integration for small businesses.
OpenText RightFax
enterpriseEnterprise-grade fax server software that securely handles high-volume faxing with deep integration into business applications like ERP and ECM systems.
Channel-based fax architecture with automated failover and load balancing for uninterrupted, high-volume enterprise faxing
OpenText RightFax is a leading enterprise fax server solution that enables organizations to send, receive, and manage faxes digitally over IP networks, eliminating the need for physical fax machines. It integrates seamlessly with business applications like ERP, CRM, EHR systems, and email clients, supporting high-volume faxing with advanced features such as OCR, secure transmission, and automated routing. Designed for compliance-heavy industries, it provides robust audit trails, encryption, and failover capabilities for mission-critical operations.
Pros
- Exceptional integration with over 500 applications including SAP, Oracle, and Microsoft Dynamics
- Enterprise-grade security with HIPAA, PCI, and GLBA compliance, plus RightFax Encryption Module
- Scalable architecture handling millions of pages monthly with 99.999% uptime via clustering
Cons
- High initial licensing and implementation costs, often requiring professional services
- Steep learning curve for setup and advanced configuration, best suited for IT admins
- Primarily Windows Server dependent, limiting deployment flexibility in diverse environments
Best For
Large enterprises in regulated industries like healthcare, finance, and legal requiring secure, high-volume faxing with deep system integrations.
Pricing
Perpetual licenses start at ~$5,000 for base server plus $100-200 per channel/user; subscription models from $150/user/year; enterprise pricing is custom with maintenance ~20% annually.
Equisys Zetafax
enterpriseRobust fax server solution for SMBs and enterprises enabling faxing directly from email clients and desktop applications with Outlook integration.
Direct fax sending/receiving via email clients like Outlook, eliminating desktop fax software needs
Equisys Zetafax is a mature fax server software that converts traditional faxing into an email-based workflow, allowing users to send and receive faxes directly from Outlook, Exchange, or other email clients without physical fax machines. It supports high-volume faxing with multiple channels, broadcasting, archiving, and optional OCR for incoming faxes. Ideal for on-premise deployments, it scales for enterprise needs while maintaining reliability in regulated industries.
Pros
- Seamless integration with Microsoft Outlook and Exchange
- Scalable multi-channel support for high-volume faxing
- Robust archiving and compliance features
Cons
- Dated user interface requiring some learning curve
- Primarily on-premise with limited native cloud options
- Licensing costs scale quickly for larger deployments
Best For
Mid-sized to large enterprises needing reliable, high-volume on-premise fax server integration with Microsoft ecosystems.
Pricing
Perpetual licenses start at around $500 for basic setups, plus per-channel and per-user fees; enterprise quotes required for full scalability.
Solgenia FaxCore
enterpriseModern fax server platform offering on-premises, cloud, and hybrid deployments with advanced routing and OCR capabilities.
HL7-compliant integration for seamless faxing directly into EMR/EHR workflows
Solgenia FaxCore is an enterprise-grade fax server software that enables organizations to send and receive faxes via email, web portals, or desktop applications using Fax over IP (FoIP) technology. It supports high-volume faxing with features like automated routing, OCR for searchable PDFs, secure archiving, and compliance tools for industries like healthcare. The platform integrates deeply with EMR/EHR systems via HL7 and offers scalability for distributed environments.
Pros
- Robust FoIP support with T.38 protocol for reliable faxing over networks
- Deep integrations with healthcare EMR/EHR systems via HL7
- Scalable architecture handles high-volume faxing with failover redundancy
Cons
- Complex initial setup requiring IT expertise
- Pricing is quote-based with limited transparency
- Interface feels dated compared to modern cloud alternatives
Best For
Mid-to-large enterprises in regulated industries like healthcare needing scalable, compliant fax server solutions with EMR integration.
Pricing
Custom quote-based pricing per channel or concurrent user; perpetual licenses start around $5,000+ with annual maintenance.
FaxBack
enterpriseSecure fax server designed for regulated industries featuring automated workflows, failover, and compliance archiving.
Advanced fax routing engine with intelligent distribution rules based on content, sender, or recipient
FaxBack is a veteran fax server software solution from faxback.com that provides reliable electronic faxing capabilities for businesses, supporting both on-premise and cloud-based deployments. It enables sending and receiving faxes via email, web interfaces, and APIs, with features like automated routing, OCR for document processing, and integration with CRM, EHR, and ERP systems. Designed for scalability, it handles high-volume faxing while ensuring compliance with standards like HIPAA, GDPR, and SOX.
Pros
- Strong integration with enterprise systems like Salesforce and Epic
- High reliability with 99.99% uptime and global coverage
- Robust compliance and security features for regulated industries
Cons
- Complex setup and steep learning curve for non-IT users
- Pricing can be opaque and higher for smaller businesses
- Interface feels dated compared to modern cloud-native alternatives
Best For
Mid-to-large enterprises in regulated sectors like healthcare and finance requiring secure, high-volume fax server integration.
Pricing
Custom quote-based pricing; on-premise starts at ~$5,000 one-time + annual maintenance, cloud from $0.05/page or $500+/month minimum.
InterFAX
specializedCloud-based fax server and API service for developers to integrate reliable fax sending and receiving into applications.
Robust RESTful API enabling seamless fax integration into CRM, ERP, and custom applications
InterFAX (interfax.net) is a cloud-based fax service provider that functions as a virtual fax server, allowing users to send and receive faxes via email, web portal, or API without hardware. It offers virtual fax numbers in over 100 countries, supports high-volume faxing, and includes features like fax broadcasting, scheduling, and delivery reports. Primarily targeted at businesses needing scalable, internet-based fax solutions with developer integrations.
Pros
- Comprehensive API for easy integration into business applications
- Global virtual numbers in 100+ countries with reliable delivery rates
- Simple email-to-fax workflow requiring no additional software
Cons
- Subscription and per-page fees can add up for high-volume users
- Cloud-only with no on-premise deployment option
- Limited customization for advanced fax server routing compared to dedicated software
Best For
Mid-sized businesses or developers seeking a reliable, scalable cloud fax server with strong API support for automation.
Pricing
Pay-as-you-go from $0.10/outbound page; inbound numbers from $9.95/month; volume subscriptions and credit bundles available with free trial.
eFax Corporate
enterpriseScalable cloud fax server providing unlimited online faxing with mobile apps and enterprise-grade security for teams.
Email-to-fax and fax-to-email automation with global number availability
eFax Corporate is a cloud-based faxing service designed for businesses, enabling users to send and receive faxes via email, web portal, mobile apps, or integrations without physical hardware. It offers dedicated toll-free or local fax numbers, customizable cover pages, OCR for searchable PDFs, and admin tools for user management and reporting. As a SaaS solution, it scales easily for teams but relies on internet connectivity rather than on-premise servers.
Pros
- No hardware or server maintenance required
- Seamless email and mobile faxing
- Strong admin controls and integrations (e.g., Salesforce, Google Workspace)
Cons
- Recurring subscription costs scale with volume
- Internet-dependent with potential downtime risks
- Less customizable than traditional on-premise fax servers
Best For
Mid-sized businesses or distributed teams needing simple, reliable cloud faxing without IT overhead.
Pricing
Starts at $16.95/user/month for 300 pages (more for higher volumes); enterprise plans custom.
RingCentral Fax
enterpriseIntegrated fax server within a unified communications platform supporting fax-to-email and multi-user management.
Deep integration with RingCentral's phone system for unified inbox handling of calls, messages, and faxes
RingCentral Fax is a cloud-based faxing service integrated into the RingCentral unified communications platform, allowing users to send and receive faxes via email, web portal, mobile apps, or desktop integrations without hardware. It supports features like broadcast faxing, customizable cover sheets, unlimited online storage, and compliance options such as HIPAA for healthcare users. As a fax server solution, it leverages RingCentral's infrastructure for reliable, scalable fax-over-IP delivery with API access for developer integrations.
Pros
- Seamless integration with RingCentral VoIP and UCaaS tools
- User-friendly interface across web, mobile, and email
- High reliability with 99.999% uptime and no hardware maintenance
Cons
- Pricing tied to RingCentral subscriptions, less ideal for fax-only needs
- Limited advanced fax server customization compared to on-premise solutions
- Broadcast limits and per-page costs can add up for high-volume users
Best For
Mid-sized businesses already using RingCentral for phone services that need straightforward cloud faxing with UC integration.
Pricing
Fax add-on starts at $20/user/month; included in higher-tier RingCentral MVP plans from $30/user/month, plus per-page fees for outbound faxes beyond allowance.
Nextiva vFax
enterpriseCloud fax server service with desktop, mobile, and web apps for seamless business faxing and e-signatures.
Native integration with Nextiva's unified communications for one-stop voice, video, and fax management
Nextiva vFax is a cloud-based online fax service that enables businesses to send and receive faxes via email, web portal, mobile app, or desktop integration, eliminating the need for traditional fax hardware. It offers features like fax broadcasting, toll-free numbers, HIPAA-compliant options, and seamless integration with Nextiva's VoIP and unified communications platform. As a fax server alternative, it supports high-volume faxing for SMBs with reliable delivery and document archiving.
Pros
- No hardware required, fully cloud-hosted for quick setup
- Strong integration with Nextiva VoIP and email systems
- Mobile app and web access for on-the-go faxing
Cons
- Page volume limits on entry-level plans can lead to overages
- Best value when bundled with Nextiva services, less competitive standalone
- Lacks advanced enterprise customization of traditional on-prem fax servers
Best For
Small to medium businesses already using Nextiva VoIP who need simple, integrated cloud faxing without hardware.
Pricing
Starts at $9.99/user/month (500 pages in/out), $19.99 (2,500 pages), $29.99+ for unlimited; discounts with Nextiva bundles.
iFax
otherUser-friendly cloud fax server app for sending and receiving faxes from any device with HIPAA compliance options.
Seamless mobile app integration for sending faxes directly from smartphones using device camera or files
iFax (ifaxapp.com) is a cloud-based faxing service that allows users to send and receive faxes digitally via email, web portal, or mobile apps without requiring phone lines or fax machines. It supports fax-to-PDF conversion, e-signatures, templates, and basic integrations with cloud storage like Google Drive and Dropbox. While convenient for small-scale use, it lacks the robust on-premise deployment, high-volume processing, and enterprise integrations typical of traditional fax server software.
Pros
- Exceptionally user-friendly interface with mobile apps for iOS and Android
- No hardware or phone line required, quick setup via cloud
- Affordable for low-volume users with features like e-signatures and templates
Cons
- Limited scalability for high-volume enterprise faxing
- Cloud-only dependency on internet with per-page overage fees
- Lacks advanced routing, PBX integration, and on-premise options found in dedicated fax servers
Best For
Small businesses or remote workers needing simple, mobile-friendly faxing without complex IT setup.
Pricing
Starts at $9.99/month for 100 pages (Starter), $19.99/month for 500 pages (Pro), $29.99/month for unlimited (Business); pay-per-page overages apply.
Fax.Plus
specializedSecure online fax server with API support, unlimited storage, and easy integration for small businesses.
Seamless mobile apps with push notifications for real-time fax status and scanning
Fax.Plus is a cloud-based online fax service that allows users to send and receive faxes via web browser, email, or dedicated mobile apps without requiring physical hardware. It supports features like digital signatures, OCR for searchable PDFs, customizable cover sheets, and international faxing to over 200 countries. As a fax server alternative, it provides scalable page-based plans suitable for small to medium businesses transitioning from legacy systems.
Pros
- Intuitive web and mobile apps for quick setup and use anywhere
- Affordable pay-per-page model with no contracts
- Built-in e-signatures and OCR for efficient document handling
Cons
- Strict monthly page limits that can lead to overages
- Limited advanced integrations for enterprise PBX or CRM systems
- Requires reliable internet, lacking offline capabilities
Best For
Small businesses, freelancers, and remote teams seeking a simple, hardware-free fax solution without complex IT setup.
Pricing
Free tier (10 pages/month); paid plans from $5.99/mo (100 pages) to $19.99/mo (700 pages), plus enterprise custom pricing.
Conclusion
Selecting the ideal fax server software hinges on unique needs, yet OpenText RightFax leads as the top choice, excelling in enterprise-grade security and high-volume faxing with deep integration into business applications. Equisys Zetafax impresses with robust performance for SMBs and seamless email/desktop integration, while Solgenia FaxCore offers flexible hybrid deployments, advanced routing, and OCR—each a strong alternative. Together, the list highlights versatile solutions to meet diverse faxing demands.
Take the first step toward efficient fax management: explore OpenText RightFax to harness enterprise-level reliability and integration that strengthens workflow efficiency.
Tools Reviewed
All tools were independently evaluated for this comparison