Top 5 Online Fax Services Compared (2026)
Side-by-side comparison of pricing, features, and reliability. Updated monthly.
Last updated: — Prices and features are reviewed manually each month. Last verified on the date above.
Feature comparison
| Feature | Fax.Plus | RingCentral Fax | eFax | Dropbox Fax (formerly HelloFax) | MyFax |
|---|---|---|---|---|---|
| Rating | 4.4 | 4.3 | 4.0 | 4.0 | 3.7 |
| Starting Price | $8.99/mo | $17.99/mo | $16.95/mo | $0.99/mo | $12/mo |
| Pages Included | 200 | 750 | 150 | 10 | 100 |
| Free Trial | — | 30 days | 14 days | — | 14 days |
| Mobile App | |||||
| Email to Fax | |||||
| HIPAA Compliant | |||||
| E-Signature | |||||
| API Access | |||||
| Number Porting | |||||
| International Fax | |||||
| Visit Fax.Plus | Visit RingCentral Fax | Visit eFax | Visit Dropbox Fax (formerly HelloFax) | Visit MyFax |
Service summaries
Fax.Plus
Best ValueModern, user-friendly fax service with a generous free tier
Fax.Plus stands out with its modern design, competitive pricing, and rare combination of HIPAA compliance with e-signatures. The free tier lets you try before committing, and the Basic plan at $8.99/mo is hard to beat for light users.
RingCentral Fax
Editor's ChoiceEnterprise-grade fax built into the RingCentral communications platform
RingCentral Fax offers the best pages-per-dollar ratio and HIPAA compliance, making it our top pick for businesses. The generous 30-day trial and API access make it a strong choice for both small teams and enterprises.
eFax
The original online fax service with the widest number coverage
eFax is one of the oldest online fax services, offering wide number availability and solid reliability. Best suited for users who value brand recognition and broad international coverage, though newer competitors offer better value per page.
Dropbox Fax (formerly HelloFax)
Best Doc WorkflowDropbox-backed faxing with strong document and signature workflows
Dropbox Fax is a strong choice for teams already using Dropbox-style document workflows and signature fields before send. It is less attractive for affiliate monetization versus RingCentral, eFax, MyFax, or Fax.Plus programs.
MyFax
Straightforward fax service focused on simplicity
MyFax is a straightforward option for users who just need basic faxing without bells and whistles. Its page-per-dollar ratio is not the best, but the simple interface and number porting may appeal to users transitioning from a physical fax machine.
Frequently asked questions
What is an online fax service?
An online fax service lets you send and receive faxes through the internet — via a web app, email, or mobile app — without needing a physical fax machine or phone line.
Are online fax services HIPAA compliant?
Some are. RingCentral Fax and Fax.Plus both offer HIPAA-compliant plans suitable for healthcare use. Always verify the provider signs a Business Associate Agreement (BAA) before transmitting protected health information.
Can I keep my existing fax number?
Many services support number porting, which lets you transfer your current fax number. eFax, RingCentral, MyFax, and Dropbox Fax all support porting. Fax.Plus does not currently offer this feature.
What's the cheapest online fax service?
Fax.Plus starts at $8.99/month for 200 pages, making it the most affordable paid option. Dropbox Fax offers 300 pages at $9.99/month and also has a pay-as-you-go option for light use.
Our methodology
We evaluate online fax services based on hands-on testing across the following criteria:
- Value: Monthly cost relative to pages included and overage rates
- Features: Breadth of capabilities (mobile, email-to-fax, e-signature, API, HIPAA)
- Ease of use: Sign-up process, interface design, and learning curve
- Reliability: Fax delivery success rate and speed
- Support: Customer service quality and response times
Ratings are on a 1–5 scale. We re-test and update reviews when providers change their pricing or features. See our about page for more detail.