December 2025 Ranking
After three months of intensive testing, we've ranked the leading online fax services on the market. This comparison is based on real-world trials, direct price verification on official websites, and objective criteria: ease of use, features, security, and value for money.
You might think fax is a technology of the past. Yet entire industries continue to rely on it daily. The healthcare sector, particularly in the United States, remains deeply attached to fax for HIPAA compliance reasons. Law firms use it for its legal validity. And many government agencies, in the US and elsewhere, still only accept fax for certain procedures.
The good news is that you no longer need a physical machine. Online fax services allow you to send and receive faxes from a computer, smartphone, or even email. In just a few clicks, you get a dedicated fax number and can start sending documents.
We tested a dozen services over several months. The goal was simple: identify those that offer the best balance of ease of use, price, features, and reliability. This ranking is the result of that analysis.
After testing every service on the market, iFax stands out as our top choice. The mobile app is flawless, the web interface is clean, and the built-in electronic signature eliminates the need to juggle multiple tools. At $12.49/month with 200 pages included, the value is excellent for a HIPAA-compliant service.
Before diving into the full ranking, here are our quick recommendations based on your situation.
Modern interface, HIPAA, electronic signature, quality mobile apps.
iFax – $12.49/month →Permanent free plan, lowest rates, international coverage.
Fax.Plus – from $6.99/month →HIPAA compliant, 24/7 support, 25 years experience, HITRUST certified.
eFax – $15.83/month →Free sending to USA/Canada, no registration or credit card.
FaxZero – Free →All pricing was verified directly on official websites in January 2026. Prices shown reflect annual billing (best value).
| Service | Score | Price/mo | Pages | Trial | HIPAA | Signature | Mobile | Action |
|---|---|---|---|---|---|---|---|---|
| 1 iFax | 4.6 | $12.49 | 200 | 7 days free | Try | |||
| 2  Fax.Plus | 4.5 | $6.99 | 200 | 10 pages/month | Try | |||
| 3  eFax | 4.5 | $15.83 | 170 | 1st month $15 | Try | |||
| 4  Documo | 4.4 | $15 | 300 | Free trial | Try | |||
| 5  CocoFax | 4.4 | $4.99 | 60 | 30-day guarantee | Try | |||
| 6  MyFax | 4.3 | $8.25 | 200 | 14 days free | Try | |||
| 7  MetroFax | 4.2 | $7.95 | 500 | No | Try | |||
| 8  HelloFax | 4.3 | $9.99 | 300 | 5 pages (one-time) | Try | |||
| 9  RingCentral | 4.4 | $20 | Included | Free trial | Try | |||
| 10  FaxZero | 4.0 | Free | 3 + cover | 100% free | Try |
Discover our in-depth evaluation of each service, based on real-world testing and daily use over several weeks.
iFax combines everything you expect from a modern fax service: a clean interface, flawless mobile apps, built-in electronic signature, and full HIPAA compliance. Its 7-day trial lets you test without commitment.
Fax.Plus is hard to beat on price. Permanent free plan, among the lowest rates on the market, coverage of 180+ countries. Ideal for freelancers and SMBs watching their budget.
With over 25 years of experience and 11 million users, eFax remains the industry standard. 24/7 support, HITRUST certification, proven reliability. The choice of large enterprises.
Documo stands out with advanced features: OCR, AI document classification, EHR integration. The natural choice for medical practices and hospitals.
CocoFax offers the market's lowest price ($4.99/month) with triple compliance (HIPAA, GDPR, PHIPA) and a modern interface. G Suite and Slack integration make it an excellent choice for budget-conscious tech teams.
MyFax offers the longest trial on the market (14 days). A subsidiary of the eFax group, it benefits from the same reliable infrastructure at a more accessible price.
MetroFax offers the best pages-to-price ratio on the market with 500 pages for $7.95. Note: service is limited to USA and Canada, not accessible from Europe.
Owned by Dropbox, HelloFax excels in cloud integrations. Google Drive, Dropbox, and native HelloSign signature. Perfect for teams already in the Google/Dropbox ecosystem.
RingCentral isn't a traditional fax service: it's a unified communications platform including phone, video, and fax. Ideal if you have needs beyond just faxing.
The only truly free service. No registration, no credit card required. Limited to USA/Canada only, with advertising on the cover page.
Not all online fax services are created equal. Here are the criteria we use to evaluate them, and those you should consider based on your usage.
Online fax service pricing generally works on a monthly subscription model with a certain number of pages included. Beyond that, you pay a per-page surcharge (typically between $0.05 and $0.15).
If you send few faxes (a handful per month), a service with a free plan like Fax.Plus (10 free pages/month) may suffice. For regular professional use, aim for a plan with at least 200-500 pages included.
If you work in healthcare in the United States, HIPAA compliance is not optional. It ensures that your patient data transmissions are secure and traceable. HIPAA-compliant services typically offer a BAA (Business Associate Agreement).
In our ranking, iFax, eFax, Documo, and RingCentral are HIPAA compliant.
Being able to sign a document directly in the app before faxing it saves considerable time. No more printing, hand-signing, scanning, and sending. iFax and HelloFax (via HelloSign) integrate this feature natively.
If you need to send faxes on the go, mobile app quality matters. iFax clearly dominates this criterion with ratings of 4.7/5 on the App Store and 4.5/5 on Google Play. The ability to scan a document with your phone's camera and send it immediately is a real advantage.
Some services are limited to certain regions. MetroFax and FaxZero only work to the United States and Canada. If you need to send faxes to France, Europe, or elsewhere in the world, make sure the service supports it. Fax.Plus covers over 180 countries.
Each service was evaluated over a period of several weeks. We created an account, sent and received faxes, tested mobile apps, and contacted customer support. Here are the six rating criteria:
Is the learning curve intuitive? Does sending a fax take 30 seconds or 5 minutes? Is the interface pleasant to use daily?
Signature, OCR, cloud integrations, API availability. Does the service offer everything you need?
Is the price fair for the features offered? Are there hidden fees? What's the cost per additional page?
Is support responsive? What channels are available (chat, email, phone)? What about documentation?
TLS encryption, HIPAA, GDPR. Is the service suitable for sensitive documents?
Which countries are supported? What's the delivery success rate? Is the service reliable?
Based on our testing, iFax is the best overall service thanks to its modern interface, built-in electronic signature, and HIPAA compliance. Starting at $12.49/month with a 7-day free trial.
Yes, FaxZero allows up to 5 free faxes per day to USA/Canada. Fax.Plus offers 10 free pages per month worldwide. For unlimited sending, you'll need a paid plan.
Professional services like iFax and eFax use TLS/SSL encryption and are HIPAA compliant for medical data. For sensitive documents, choose a service with appropriate certifications.
No. Online fax services assign you a dedicated fax number. Incoming faxes are converted to PDF and sent to your email or accessible in the app.
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