Best Online Fax Services (Business, Cloud And HIPAA)
Dominic Tarn
Head of Content - Reverb
08.12.2025
Fax technology has undergone a major transformation with the introduction of online and cloud-based fax services.
Online fax services are digitalizing the functions of a physical fax machine by enabling organizations to send and receive faxes over the internet from anywhere and anytime. In online faxing, documents are converted to digital formats, like PDF or TIFF (tagged image file format), and sent over email along with the traditional fax number, allowing another party to receive high-quality documents.
Benefits of online fax apps and services
Digital faxing offers notable benefits over the traditional fax service. Some of the major benefits include:
Reduced cost: Internet faxing saves costs by enabling digital document transfer and reducing the need for papers, inks, and maintenance required in traditional fax machines.
Speed: With digital fax service, you can send and receive documents simultaneously, thus eliminating downtime and increasing speed.
Enhanced security: Digital fax services have enhanced security features like encryption and password protection.
Scalability: Online fax solutions allow users to go from basic or free plans to upgraded plans, depending on their usage and requirements.
Accessibility: Cloud-based faxing enables users to send and receive faxes from anywhere globally and on any device, from in-office computers to personal phones at any time.
So, if you’re interested in exploring the top online fax services and products, you’re on the right page. We’ve listed some of the best fax apps and services available in the market and highlighted their key features and pricing details.
eFax is the best online fax service platform that offers a comprehensive range of internet faxing solutions. In addition to ISO 27001 certification and HIPAA, HITRUST, and SOC compliances, eFax’s online enterprise fax solutions are secured with 256-bit AES (Advanced Encryption Standard) and TLS encryption – offering a robust and secure architecture.
eFax offers a web portal where you can send and receive faxes in multiple formats, like PDF, TIFF, DOC, and PNG. In addition, features like electronic signatures and searchable PDFs are also available for seamless document management. eFax has a 4.8-star rating and 2000+ reviews on Trustpilot and has been recognized as the Forbes Advisor Best Online Fax Services 2024.
Key features of eFax:
Online fax service
Electronic signatures
Free online storage
Compliance with HIPAA
Free mobile apps
API integrations
Pricing:
eFax offers three pricing models:
eFax Plus: $15.83/month (170 pages)
eFax Pro: $20.83/month (275 pages)
eFax Corporate: custom pricing (powered with HIPAA compliance)
FaxSIPit is for places where fax is still part of the job and a failed send turns into a real problem. It does not ask you to rebuild your whole setup. You keep your existing workflow, and FaxSIPit simply gives you better ways to move faxes through email, APIs, and the tools teams already live in, like Microsoft Teams and Zoom. It also covers the basics that matter in regulated work: encryption, delivery confirmation, and logs you can actually use, with support for HIPAA and GDPR needs.
Day to day, staff can fax from a browser or straight from email, and the integrations are the real selling point. The Microsoft 365 app lets people handle faxes in Outlook and Teams, pull down PDFs for signing or markups, and manage retention rules. If a site still has legacy fax hardware, FaxSIPit can run a hybrid setup using a SecureFax ATA, and you can add practical extras like number porting and unlimited storage depending on the plan.
Key features of FaxSIPit:
HIPAA compliant faxing and BAAs available
Advanced encryption in transit and at rest
Detailed audit trails and access controls
Web fax, email fax, PC fax workflows
Integrations with Microsoft 365, Outlook, Microsoft Teams, Zoom
Trusted by over 400,000 global organizations, from small businesses to Fortune 1000 companies, RingCentral is one of the best efax providers. RingCentral offers a complete range of business communications services, from business phone systems to cloud faxing services. RingEX by RingCentral takes online faxing to the next level by offering added features like spam fax blocking, fax scheduling and customizable fax cover pages.
With its versatile product lineup and expertise, RingCentral caters to various industries, like Healthcare, Automotive, Finance, Education, Government, and more. RingCentral offers over 300 pre-built integrations with applications like Salesforce, Google Workspace, and Microsoft Team and an open API architecture to let users build custom integrations.
Fax.Plus is a prominent efax platform known for providing the cheapest online fax service starting at just $6.99/month. This also makes Fax.Plus a popular choice for individuals and sole proprietors, allowing them to upgrade plans as they scale and save big on the up-front costs.
Fax.Plus provides fax numbers for 48 countries and allows sending faxes to over 180 countries. Talking of security and compliance, every fax sent over Fax.Plus is HIPAA, SOC 2, GDPR and CCPA compliant and secured by 256-bit AES and TLS 1.2+ encryption. As a result, enterprises like 3M, IBM, PwC, and Philips have trusted Fax.Plus for their internet-based faxing requirements.
Offering the best efax service over the internet, SRFax is a top-rated online fax platform. SRFax offers SSL-encrypted and HIPAA-compliant electronic faxes to customers, ranging from healthcare providers to business enterprises.
SRFax also provides an API integration and development facility, allowing businesses to send and receive documents seamlessly. Moreover, SRFax offers customizable plans for all types of individuals and businesses, starting at just $11.45/month for 200 faxes to $252.90/month for 10000 faxes.
Key features of SRFax:
Affordable online fax solutions
End-to-end SSL encryption
HIPAA compliant faxes
Programmable API
Unlimited cloud storage
Pricing:
SRFax offers multiple options:
Basic Plus: $11.45/month (200 pages)
Standard Lite: $14.90/month (500 pages)
Standard: $21.80/month (800 pages)
Standard Plus: $37.90/month (1500 pages)
Standard Professional: $63.20/month (2500 pages)
Standard Professional Plus: $126.45/month (5000 pages)
If you’re looking for the leading web-based fax solutions, MetroFax is the best option. MetroFax supports all major formats, such as PDF, PNG, JPEG, and TIFF and allows multiple recipient delivery. Moreover, MetroFax also provides a tag feature for better data organization and management.
MetroFax offers a convenient and affordable virtual fax solution with a 500-page plan starting at just $9.96/month if paid annually and an additional page cost of just 3 cents. So, try out MetroFax and enjoy a 14-day free trial today!
Key features of MetroFax:
Mobile faxing
Multiple format support
Multiple recipients
Dedicated fax number
No long-distance charges across the US and Canada
Pricing:
MetroFax offers free mobile app fax services. In addition, it offers three subscription options:
Recognized by The New York Times, WIRED, Lifehacker, Inc. and Forbes, HelloFax, now known as Dropbox Fax is a widely-used fax platform that also provides the best free online fax service. HelloFax’s plans are designed to address the faxing needs of all customer segments, from individual professionals to SMBs to enterprises.
In addition to providing dedicated fax lines for your business, HelloFax also allows fax number porting at a minimal one-time fee. Lastly, its 30-day free trial makes it the best choice for businesses looking to explore their options.
Key features of HelloFax:
Secure and Confidential Faxes
Scalable faxing solutions
Multiple integrations
Searchable PDFs
Electronic signatures
Pricing:
HelloFax offers many plans for users ranging from small businesses to enterprises.
Trusted by leading clients like Warby Parker, Carbon Health, InfiniteMD, and Thetford, mFax by Documo is among the best fax apps available in the market. Powered with HIPAA compliance and top-tier encryption security layers, mFax also provides the most secure online fax service.
Going by the reviews, mFax provides an intuitive site experience along with high-performance applications and softwares. mFax also gives a 14-day free trial and complimentary onboarding support to its users. Further, the list of features of mFax includes Fax over IP (FoIP), advanced admin control, and automatic cloud storage.
Key features of mFax:
Email-to-fax & Print-to-fax
Fax over IP (FoIP)
Automatic cloud storage
Secure and compliant faxing
Advanced admin portal
Complimentary onboarding support
Pricing:
mFax offers four subscription plans:
Professional: $75 monthly (800 pages)
Business: $150 monthly (2500 pages)
Enterprise: $300 monthly (6000 pages)
Custom: For customizable offerings, contact mFax today.
HylaFAX by iFax Solutions offers a bundle of internet-based fax solutions, comprising HylaFAX Enterprise, HylaFAX Open Source, HylaFSP, HylaSAP, and HylaFAX Lite. All the softwares are built to serve the varying requirements of different customers – from enterprises to small businesses.
Released in 1991, HylaFAX has maintained its recognition as the best efax service and provides unbeatable features, like Fax over IP (FoIP), virtualization, dialogic brooktrout support, and API connectors & SDKs. As a result, industry-leading organizations like AT&T, Boeing, Dunkin Donuts, Verizon, and Accenture have integrated HylaFAX into their core systems.
Key features of HylaFAX by iFax:
Fax over IP (FoIP)
Stable and high-performance fax solutions
Dialogic brooktrout support
Open architecture
Virtualization
Expert support
Pricing:
iFax offers various softwares and fax packages. Contact them to understand which product and plan will best suit your requirements.
With 25+ years in digital fax technologies, Concord Fax is one of the top online fax services in the market. Concord Fax’s offerings include secure document sharing, intelligent document processing and intake and referral management services for seamless cloud fax integration and interoperability.
Concord Fax boasts a user base of 200K+ users and a 99% client retention rate, thanks to its HIPAA, HITRUST, DirectTrust, and SOC-compliant faxes. With a 5B+ annual e-fax count and 99.99% uptime, Concord Fax caters to numerous sectors, like Healthcare, Accounting, Finance, and Information Technology.
Key features of Concord Fax:
Secure document exchange
Intelligent document processing
HIPAA & SOC2 compliant
Technical & implementation support
Server-to-cloud migration
Pricing:
Concord Fax offers four types of plans – Base, Essential, Advanced, and Premier. However, you need to contact the sales team at Concord for a demo and pricing.
If you’re looking to try the best free online fax service platform, FaxBurner can be the perfect choice. FaxBurner offers an iOS application for iPhones and iPads, allowing users to send and receive faxes using their mobile devices as well.
FaxBurner provides numerous faxing benefits, like fax archives, electronic signatures, multi-page online fax creation from photos, and more, empowering the users with a productivity boost. Moreover, for its class-apart digital fax services, FaxBurner has been mentioned in notable portals, such as Lifehacker, wirecutter, Macworld, and TidBITS.
Key features of FaxBurner:
Free online fax service
Multi-device fax support
Email-to-fax
Fax-to-email
Permanent fax number
Pricing:
FaxBurner offers three packages:
Free Package: Free plan includes 25 inbound pages and 5 outbound pages
Professional: $14.95/month (500 inbound and outbound pages per month)
Premier: $24.95/month (2000 inbound and outbound pages per month)
Online Fax Solutions For Business And Enterprise
For a business, the question is less “can I send a fax online” and more “how does fax fit our workflow”. Enterprise faxing solutions usually add:
Multiple users and fax numbers, with admin controls over who can send from which number.
Email-to-fax and fax-to-email, so staff never need a fax machine.
An API to send and receive faxes from your own software, CRM or EHR. eFax, FaxSIPit, RingCentral, Fax.Plus, SRFax and HylaFAX by iFax all offer developer integrations.
Integrations with tools like Microsoft 365, Google Workspace, Salesforce and cloud storage.
Audit trails and retention settings for regulated industries.
HIPAA-Compliant Online Fax For Healthcare
Healthcare still relies heavily on fax for referrals, prescriptions and medical records. If you handle protected health information in the United States, the fax service must be HIPAA compliant and willing to sign a Business Associate Agreement (BAA). Look for encryption in transit and at rest, access controls and audit logs.
eFax, FaxSIPit, Fax.Plus, SRFax, mFax and Concord Fax all describe HIPAA-compliant options. Compliance usually requires a specific plan tier, so confirm with the vendor and sign the BAA before sending patient data.
How To Choose An Online Fax Service
Volume: check how many pages each plan includes and the cost per extra page.
Numbers: check whether you can keep (port) your existing fax number and whether local or toll-free numbers are available.
Cloud fax solution or fax server: most businesses are best served by a cloud service. A self-hosted fax server only makes sense for large organizations with in-house IT.
Mobile apps: useful if staff need to send or sign documents on the go.
Cloud Fax Solutions By Industry
Most industries that still fax need the same basics: secure delivery, an audit trail and a way to fax without a machine. The differences are in volume, integrations and compliance.
Finance and accounting: RingCentral lists finance among the industries it serves, and Concord Fax lists healthcare, accounting, finance and information technology. Look for encryption, retention settings and audit trails.
Insurance: claims and policy documents often arrive in volume, so an API that pushes faxes into your own systems matters. eFax, FaxSIPit, RingCentral, Fax.Plus, SRFax and HylaFAX by iFax all offer developer integrations.
Manufacturing: teams that still run fax machines on the shop floor can look at FaxSIPit, which supports legacy machines alongside cloud faxing, or HylaFAX by iFax for enterprise fax servers and Fax over IP.
Transportation: drivers and field staff need to send paperwork on the move. eFax lists free mobile apps, and FaxBurner is an iOS app that faxes multi-page documents from photos.
Consulting: small teams sending contracts benefit from electronic signatures, which eFax and HelloFax include.
Online Fax Pricing Models
Online fax services on this list use a handful of pricing models. Knowing which one fits your usage matters more than the headline plan.
Monthly plans with page allowances: the most common model. Plans include a set number of pages, and pages beyond the allowance are billed as overage, so estimate your monthly volume before choosing a tier.
Per-user pricing: RingCentral prices its tiers per user, which suits teams that want fax inside a wider business phone system.
Free tiers and free trials: FaxBurner and HelloFax list limited free tiers, while MetroFax, HelloFax and mFax list free trials.
Enterprise licensing: eFax Corporate, Concord Fax and HylaFAX by iFax quote on request, typically for higher volumes, multiple numbers, integrations or on-premise deployment.
The main cost drivers are page volume, the number of users and fax numbers, compliance needs such as HIPAA, and API or integration access. If you fax only occasionally, see our guide to faxing online without a fax machine.
Frequently Asked Questions
What is a cloud fax solution?
A cloud fax solution sends and receives faxes over the internet instead of a phone line. You fax from email, a web app, a mobile app or through an API, and received faxes arrive as PDFs.
Is online fax secure?
Reputable online fax services encrypt documents in transit and in storage. For sensitive data, choose a provider that offers HIPAA compliance or equivalent security certifications.
Can I send a fax online for free?
Some services, such as FaxBurner and HelloFax, offer free tiers or trials with limited pages. Regular business use usually needs a paid plan.
Which online fax provider is the best?
It depends on your volume, compliance needs and the tools you already use. On this list, eFax is positioned for all-round business faxing, FaxSIPit, SRFax, mFax and Concord Fax highlight HIPAA compliance for healthcare, RingCentral adds fax to a business phone system, and Fax.Plus offers a programmable API. Compare page allowances, integrations and compliance before choosing.
Is eFax still free?
eFax has offered free trials and a free receive-only plan in the past, but the eFax plans listed on this page are paid. Free options change, so check eFax’s current plans before signing up. If you only fax occasionally, FaxBurner and HelloFax list limited free tiers on this page.
Offering numerous operational and financial benefits, like accessibility, cost-reduction, enhanced security, improved speed and better scalability, online fax service is emerging as the best alternative for regular fax machines. The list provided above contains the best online fax services that can help you perfectly meet your business’ growing fax requirements. We hope you work with the best one!
If you want to feature your online fax services on this list, email us or submit a form in the Top Choices section. After a thorough assessment, we’ll decide whether it’s a valuable addition.
