1 Best Overall
4.6 /5
Fax.Plus
Best value with 190+ country coverage, free plan, and electronic signature.
- Coverage
- 190+ countries
- Free plan
- 10 pages/mo
- HIPAA
- Enterprise only
Starting at $6.99 /mo
The Best Online Fax Services
Compare the most reliable online fax services. We sign up with our own paid accounts, send real faxes, contact support and verify every price on the provider's own website, then publish what we found.
10
Services tested
50+
Features compared
2026
Ranking up-to-date
100%
Independent
4.6
/ 5
Our #1 Recommendation
Fax.Plus: the best fax service of 2026
Best overall value: a permanent free plan, 190+ country coverage and electronic signature, from $6.99/mo.
Ranking
Top 3 Online Fax Services
Scores weight value, features, security, support and coverage. Prices verified on the vendor's own site.
2 Best for Healthcare
4.5 /5
Documo
HIPAA + BAA included on all plans, EHR integration with PointClickCare, ModMed, NextGen.
- Numbers
- US & Canada
- Trial
- 14-day
- HIPAA
- All plans
Starting at $25 /mo
3 Best Value for HIPAA
4.5 /5
iFax
Category-best mobile app (4.7/5 App Store), e-signature on every plan, and 5M+ users. HIPAA with BAA from the Plus tier.
- Mobile app
- 4.7 / 5
- Trial
- 7-day
- HIPAA
- Plus and up
Starting at $12.49 /mo
Methodology
Why Trust FaxRadar?
No vendor sees a review before it publishes. Rankings are never sold.
01
Independent Testing
Every service is tested and scored by our team with no brand influence, on accounts we pay for ourselves.
02
Updated for 2026
Comparisons and pricing are re-verified on the provider's own website and dated on every page.
03
Security Verified
We check HIPAA compliance, signed BAAs, encryption in transit and published security certifications.
04
Detailed Comparisons
Full feature tables across 50+ data points, so you can decide in a minute instead of an afternoon.
Every service is tested with our own paid accounts: we sign up, send real faxes, contact support, and verify each price on the provider's own website.
How we test → Reviews
In-Depth Service Reviews
Six of ten reviews, ordered by score. Each one is a hands-on account of a paid trial.
01 Fax.Plus Best overall: free plan, 190+ countries 4.6 /5 Read review → 02 Documo Best for healthcare: HIPAA on all plans 4.5 /5 Read review → 03 iFax Best value for HIPAA: top mobile app, e-sign on every plan 4.5 /5 Read review → 04 
eFax 25-year veteran, HITRUST certified 4.4 /5 Read review → 05 
Dropbox Fax Wirecutter's pick for occasional, cloud-first faxing 4.4 /5 Read review → 06 
SRFax HIPAA-native, Canadian data residency 4.3 /5 Read review →
Fax.Plus Best overall: free plan, 190+ countries 4.6 /5 Read review → 02 Documo Best for healthcare: HIPAA on all plans 4.5 /5 Read review → 03 iFax Best value for HIPAA: top mobile app, e-sign on every plan 4.5 /5 Read review → 04 eFax 25-year veteran, HITRUST certified 4.4 /5 Read review → 05 Dropbox Fax Wirecutter's pick for occasional, cloud-first faxing 4.4 /5 Read review → 06 SRFax HIPAA-native, Canadian data residency 4.3 /5 Read review → Buying guides
Best Fax Services by Category
Seven ranked shortlists for a specific need: price, compliance, industry.
The main ranking
Best Online Fax Services
Our full 2026 ranking of all 10 services, scored on 50+ data points.
View the guide →
Best Cheap Fax Services
Lowest prices and free options compared.
View the guide →
Best for Small Business
Team features, integrations and real value.
View the guide →
Best HIPAA-Compliant
Verified BAAs and audited compliance.
View the guide →
Best for Healthcare
EHR integration and patient-data security.
View the guide →
Best for Law Firms
Encryption, e-signature and reliability.
View the guide →
Best Email-to-Fax
Send faxes straight from your inbox.
View the guide → How-to
Fax Guides & How-To
Step-by-step instructions for every device and inbox. No account needed to read.
Fax Without a Machine Send a fax with no hardware, 4 ways. 
Send a Fax for Free All the genuinely free ways to fax online. 
Fax from Gmail Fax straight from your Gmail inbox. 
Fax from Outlook Send faxes from Outlook & Microsoft 365. 
Fax from iPhone Fax from your iPhone in under 2 minutes. 
Fax from Android Fax from any Android phone: free options. 
Fax from a Computer PC, Mac or Chromebook, no machine. 
Fax from Mac Fax from a Mac with no extra hardware. Head-to-head
Popular Comparisons
Our three most-read matchups, decided on price, features and compliance.
vs 4.3 · 4.6 CocoFax vs Fax.Plus
Cheapest entry price against the best overall value.
Read the comparison → vs 4.4 · 4.6 eFax vs Fax.Plus
The legacy brand against the modern challenger.
Read the comparison → vs 4.5 · 4.6 iFax vs Fax.Plus
Best mobile app against the best overall value.
Read the comparison → Utilities
Free Fax Tools
Four utilities that run in the browser. No signup, no data stored.
TOOL 01
Fax Cost Calculator
Estimate your monthly fax cost across every plan we track.
Open the tool → TOOL 02
Cover Page Generator
Create a free, printable fax cover sheet in one step.
Open the tool → TOOL 03
Fax Number Validator
Check whether a fax number is valid before you send.
Open the tool → TOOL 04
Fax Number Directory
Find verified business fax numbers by name or sector.
Open the tool → Switching
Compare Alternatives
Already using a fax service? Discover the best alternatives for each provider.
View all fax alternatives → eFax alternatives 9 tested Fax.Plus alternatives 8 tested CocoFax alternatives 6 tested iFax alternatives 9 tested Documo alternatives 8 tested SRFax alternatives 8 tested MyFax alternatives 8 tested MetroFax alternatives 8 tested Dropbox Fax alternatives 8 tested FaxZero alternatives 6 tested Nextiva alternatives 8 tested
Questions
Frequently Asked Questions
What is the best online fax service in 2026?
Based on hands-on testing of 10 services, Fax.Plus is the best overall: a permanent free plan, 190+ country coverage and the lowest paid rate from $6.99/month. For healthcare, Documo and eFax (from its Business plan) lead on audited HIPAA.
Can you send a fax online for free?
Yes. FaxZero sends up to 5 free faxes a day to the US and Canada with no account, and Fax.Plus includes 10 free pages a month to 190+ countries. Neither free option lets you receive faxes.
Are online faxes secure?
Reputable services encrypt transmissions with TLS/SSL: Fax.Plus is ISO 27001 certified and SRFax adds free PGP. For medical or legal documents, use a HIPAA-compliant service with a signed BAA.
What is the cheapest online fax service?
CocoFax has the lowest paid price at $4.99/month, and FaxZero is free for occasional US/Canada use. The best value is Fax.Plus at $6.99/month for 200 pages.
Which online fax services are HIPAA compliant?
Documo, SRFax and eFax (from its Business plan) offer independently audited HIPAA with a signed BAA; Fax.Plus includes it on the Enterprise plan.
Can I send a fax from my phone or email?
Yes. You can fax from Gmail, Outlook, an iPhone, an Android phone or any computer, no machine required.
How does FaxRadar test and rank fax services?
We sign up with our own paid accounts, send real faxes, contact support and verify every price on the provider's own website. Scores weight value, features, security, support and coverage.
2026 ranking
Ready to choose your fax service?
Compare all ten services side by side, or start with the one that won our 2026 test.