Best Online Fax Services in 2025: Expert Comparison & Reviews

Name: Fax.Plus HIPAA Fax
Brand: Fax.Plus
Rating: 4.7 (8490 reviews)

Traditional faxing is slow, unreliable, and insecure. Online fax services eliminate paper jams, busy lines and privacy risks. This 2025 guide reviews the top 10 online fax services, comparing security, ease of use, integrations, quality and cost to help you choose the best fax solution for your business.

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5 Critical Criteria for Comparison

Use these to determine whether a cloud fax works for you or your team today and as you grow.

Security: Solution protects sensitive data and ensures compliance. Encryption prevents interception, access controls prove who saw what, and certifications let you handle regulated information.
Ease of Use: Teams work immediately without training. Familiar workflows and shared inboxes eliminate forwarding chaos.
Quality: Faxes arrive legible on the first try. Enhancement features ensure professional appearance and eliminate failed transmissions.
Integrations: Faxing fits your existing workflow. Documents flow automatically to where they're needed without switching tools.
Cost: Predictable expenses without surprise bills. Understanding all fees helps you budget accurately for multi-user teams.

We've combined independent reviews with direct customer feedback. Independent reviews help benchmark features and support, while customer conversations reveal real workflows, for example, shared mailboxes or concurrency concerns like busy signals.

Best Online Fax Services Comparison Table

Criteria

Leader

Fax.Plus

iFax

SRFax

RingCentral

EveryFax

Nextiva

eFax

MyFax

Dropbox

FaxZero

Encryption & Security

5/5
AES-256/TLS, ISO/SOC2, HIPAA.

5/5
E2E, HIPAA, ISO, global data.

5/5 TLS/SSL, HIPAA, ISO, secure DCs.

(5/5) Enterprise crypto, SOC2, MFA.

(5/5)
‍E2E, HIPAA, audit logs.

(4/5)
‍Biz-grade, no HIPAA BAA.

(4/5) TLS/SSL, partial ISO, BAA opt-in.

(4/5) Standard, no HIPAA, basic logs.

(3/5) Dropbox model, not HIPAA.

(2/5)
‍Basic HTTPS, no compliance.

Ease of Use

(5/5)
‍Clean web,
mobile, email fax.

(5/5)
‍Apps, PDF edit.

(4/5) Secure portal.

(4/5)
‍UC dashboard.

(5/5)
‍Email fax, zero setup.

(4/5)
‍Clean suite.

(4/5) Traditional UI.

(4/5) Simple, reliable.

(5/5)
‍Clean dashboard.

(5/5) Instant web send, basic form.

Fax Quality & Reliability

(5/5)
‍High res, 99.9% uptime.

(5/5)
‍High-res, 99.9% uptime.

(4/5)
‍High res, 99.8% uptime.

(4/5) Standard, 99.9% uptime.

(4/5) Standard, 99.5% uptime.

(4/5) Standard, 99.7% uptime.

(5/5)
‍High res, 99.8% uptime.

(4/5) Standard, 99.5% uptime.

(4/5)
Standart, 99.5% uptime.

(3/5)
‍Standart, ~95% success.

Integrations & Automation

(5/5) GDrive,
Dropbox,
OneDrive, Zapier, API.

(4/5)
‍Cloud + API, limited Zapier.

(3/5)
Basic cloud/EHR, limited API.

(4/5) GDrive, Dropbox, Outlook, API.

(4/5)
Email workflows only.

(3/5)
Basic cloud/UC, limited.

(3/5) Email/cloud, no Zapier.

(3/5) Minimal cloud/email.

(5/5)
Deep Dropbox, e-sign built-in.

(1/5)
None, manual uploads.

Cost & Value

(5/5)
From $6.99, free pages.

(4/5)
From $12.49, trial.

(4/5)
From $10.70, clear tiers.

(3/5)
From $22.99.

(3/5)
From $20.99, unlimited teams.

(5/5)
From $7.95, bundled savings.

(3/5)
From $15.83, premium pricing.

(5/5)
From $9.17, budget-friendly.

(4/5) $8.33, solid Dropbox value.

(5/5)
Free (15/day), ads in fax.

Overall Average Score

★★★★★

★★★★☆

★★★☆☆

/ Complete Comparison

Top 10 Best Online Fax Services in 2025:

1. Fax.Plus

Fax.Plus is a sleek, multi-platform faxing service with serious security under the hood. Its admin controls feel built for compliance teams, and the apps make everyday faxing painless. The combination of controls, reliability and integrations makes Fax.Plus a standout choice.

Security ★★★★★

Fax.Plus pairs SOC 2 and ISO 27001 with HIPAA-ready controls, AES-256 at rest and TLS in transit, and data residency options such as Swiss or U.S. centers. HIPAA mode can disable attachments from notifications to reduce PHI exposure.

Ease of Use ★★★★★

Teams get web, iOS, Android, and email-to-fax, with fast onboarding and familiar shared mailbox flows for Outlook. Customers often describe the dashboard as simple and clear.

Quality ★★★★★

Optimize Document for Text improves transmission quality and readability on the receiving machine.

Integrations ★★★★★

Native Google, Microsoft and Slack integrations, a programmable API, and Zapier connectivity to thousands of apps cover most workflows without custom code.

Cost ★★★★★

Transparent plans start at $6.99/month (annual billing) with 10 free outbound pages on the free plan. Business and Enterprise tiers add users, numbers, HIPAA features, and high concurrent inbound capacity when volume spikes.

2. RingCentral

RingCentral is a familiar name for enterprises. If your IT team already manages voice and messaging here, adding fax keeps everything in one pane of glass. The trade-off is that standalone fax pricing may feel premium.

Security ★★★★★

RingCentral Includes MFA, role-based access and encryption aligned with enterprise standards.

Ease of Use ★★★★☆

Centralized administration and a consistent interface suit large environments.

Quality ★★★★☆

Reliable for bulk faxing with spam controls and custom cover pages.

Integrations ★★★★☆

Connectors for Google Drive, Dropbox, Outlook and broad UC integrations.

Cost ★★★☆☆

Pricing starts at $22.99/month (Annual billing). Verify current rates for your region and volume.

3. Nextiva

Nextiva brings fax into a broader communications suite. The value is clear if you already use its phones or contact center tools. Security is solid for general business, though HIPAA specifics should be verified per plan.

Security ★★★★☆

Nextiva Fax supports secure transmission and folds faxing into a mature UC stack.

Ease of Use ★★★★★

A simple dashboard and email routing make it approachable for small teams, especially those already on Nextiva phones.

Quality ★★★★☆

Consistent for everyday use, storage and retention are adequate for non-regulated teams.

Integrations ★★★☆☆

Strong inside Nextiva’s ecosystem, less breadth across automation marketplaces.

Cost ★★★★★

Entry-tier pricing starts at $7.95/month (annual billing) for roughly 500 pages, with higher tiers for 1,000–3,000 pages.

4. iFax

iFax leans into mobile-first convenience without ignoring compliance. The apps are polished and BAAs are available. You’ll pay mid-tier pricing for the feature depth.

Security ★★★★★

iFax markets HIPAA compliance and offers BAAs, appealing to clinics and solo providers.

Ease of Use ★★★★★

Clean mobile and web apps with PDF markup for quick edits.

Quality ★★★★★

Mobile controls let you adjust image quality before sending, useful for scanned forms.

Integrations ★★★★☆

API and cloud storage support common workflows.

Cost ★★★★☆

Mid-tier pricing starts at $12.49/month (annual billing) with strong support. Evaluate against your volume.

5. SRFax

SRFax is a compliance-forward service that speaks the language of healthcare. Setup is straightforward, and HIPAA-focused plans are clearly labeled. Feature breadth is practical rather than flashy.

Security ★★★★★

SRFax emphasizes HIPAA compliance with BAAs across dedicated plans.

Ease of Use ★★★★☆

Secure portal with clear inbound and outbound flows.

Quality ★★★★☆

Built for medical record exchange with audit-friendly logs.

Integrations ★★★☆☆

Solid email-to-fax and basic connectors. Check EHR specifics case by case.

Cost ★★★★☆

Pricing starts at $10.70/month (annual billing). Competitive HIPAA plans. Select the tier matching your page volume.

6. eFax

eFax is the established brand many teams already recognize. It’s dependable, easy to roll out, and offers wide number availability. You may pay a brand premium versus newer entrants.

Security ★★★★☆

Encrypted transport and admin controls, HIPAA-focused options available in select plans.

Ease of Use ★★★★☆

Email-to-fax is straightforward, mobile and web are familiar to most users.

Quality ★★★★★

Consistent transmission quality across regions.

Integrations ★★★☆☆

eFax covers storage and email essentials.

Cost ★★★☆☆

Entry plans commonly start at $15.83/month (annual billing). Watch overages.

7. EveryFax

EveryFax keeps things delightfully simple: send and receive from email with minimal training. Security claims are strong, but always verify BAA details for regulated data.

Security ★★★★★

EveryFax advertises HIPAA compliance and encrypted delivery.

Ease of Use ★★★★★

Email-like experience keeps onboarding fast.

Quality ★★★★☆

Good day-to-day clarity for forms and confirmations.

Integrations ★★★★☆

Email-first flows fit many small team processes, broader connectors vary.

Cost ★★★★★

$20.99/month (annual billing) value-focused pricing with generous page policies.

8. Dropbox Fax (HelloFax)

Dropbox Fax is the obvious pick for Dropbox-heavy teams. Deep file access and built-in e-signature make document prep smooth. Confirm HIPAA needs before moving PHI.

Security ★★★☆☆

Secure transport with Dropbox’s baseline. Validate HIPAA requirements.

Ease of Use ★★★★★

Seamless Dropbox integration and e-signature streamline work.

Quality ★★★★☆

Solid for general business use.

Integrations ★★★★★

Deep Dropbox hooks plus email workflows.

Cost ★★★★☆

Transparent plans and light-use options. Starts at $8.33/month (annual billing).

9. MyFax

MyFax delivers a straightforward, budget-friendly experience. It won’t wow power users, but it covers the essentials reliably. A good fit for small teams with predictable volumes.

Security ★★★★☆

Business-grade encryption and standard controls.

Ease of Use ★★★★☆

Simple web and email-to-fax interface.

Quality ★★★★☆

Reliable for routine business faxing.

Integrations ★★★☆☆

MyFax covers essentials, but automation depth is limited.

Cost ★★★★★

Entry pricing often around nine dollars per month on annual terms.

10. FaxZero

FaxZero is the quickest way to send a rare fax for free. It’s not built for sensitive documents or team workflows, but it’s perfect for one-off tasks.

Security ★★☆☆☆

Basic security with branded cover pages.

Ease of Use ★★★★★

No account required. Upload and send.

Quality ★★★☆☆

Page and daily-send limits apply.

Integrations ★☆☆☆☆

Web-only, manual uploads.

Cost ★★★★★

Free for very light sending, optional paid upgrades.

Deep Dive: Understanding Each Criterion

Pick services that prove controls with audits, not just claims.

Encryption types explained: Look for AES-256 at rest and TLS in transit, these reduce risk if a message is intercepted or a disk is lost.

Compliance frameworks compared: ISO 27001 focuses on the organization’s security program, SOC 2 Type II tests controls over time, HIPAA adds specific privacy and security safeguards required for PHI.

Risk assessment: For PHI, also confirm data residency and retention settings, many healthcare teams ask to pin data to specific regions.

Security checklist: Require SSO and MFA, configurable retention, delivery confirmations, and exportable logs to support audits.

Fewer clicks mean fewer errors.

UX practices: A clean dashboard, shared mailboxes, and simple routing reduce misdelivery. Outlook shared inboxes and “no learning curve” onboarding come up often in buyer notes.

Onboarding: Lightweight demos and clear docs help teams self-start, particularly for API use.

Mobile vs desktop: Supports iOS and Android plus desktop apps so staff can scan, sign, and send from anywhere.

Support and training: Self-serve patterns, playbooks for HIPAA mode and shared inboxes, reduce tickets.

Clean scans and the right settings boost success.

Transmission tech: Delivery confirmations and auto-retries cut back on “Did you get it?” phone calls.

Resolution and clarity: Use Optimize for Text to remove shadows and sharpen scans before sending.

Error rates and reliability: Healthcare teams report pain from missing or delayed faxes and prioritize vendors with strong deliverability and clear status tracking.

Customer support quality: Visibility (status and logs) matters as much as response times.

Fax should show up where your team already works.

Workflow automation: Zapier triggers like “New Fax Received” pipe data into ticketing, storage, or notifications without code.

API capabilities: Developer-friendly docs and HIPAA-safe patterns (when email is restricted) enable EMR and EHR flows.

Cloud ecosystem: Native Google, Microsoft, and Slack, plus Zapier’s large app catalog, cover most business stacks.

Future-proofing: Look for data residency options, retention policies, and SSO, these age well as you grow.

Model the whole year, not just month one.

Hidden fees: Factor in extra numbers, overages, vanity numbers, and porting.

Total cost and ROI: Many firms save by retiring phone lines and machines. Teams moving off POTS and fax boards cite reduced hassle and clearer budgets.

ROI timeline by size: SMBs often justify in weeks by eliminating missed faxes and misrouted pages, enterprises realize value through auditability and fewer support tickets.

Free vs paid: Free tiers are fine to test, move to paid for numbers, storage, and support.

Conclusion

If your goal is the best online fax service, one that’s secure, easy, and integrates with your stack, Fax.Plus is the clear winner for 2025. You get HIPAA-ready controls (with BAA on Enterprise), ISO 27001 and SOC 2 assurances, native Google and Microsoft integrations, Zapier automation into thousands of apps, and transparent pricing starting at $6.99/month, plus a free 10-page send to pilot. Explore Fax.Plus and see how a compliant, modern fax can reduce risk and save time.

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DISCLAIMER: The information on this site is for general information purposes only, and Fax.Plus cannot guarantee that all the information on this site is current or accurate. This is not intended to be legal advice and should not be a substitute for professional legal advice. For legal advice, consult a licensed attorney regarding your specific legal questions.

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