Secure Transmission
End-to-end encryption and enterprise-grade security keep your documents protected in transit.
The Professional Way to Send Fax Online
Secure, fast, and reliable digital faxing for modern business.
Free Demo: Max 1 page per dayProfessional plans include higher limits, API access, and priority delivery.
Get StartedBuilt for modern teams
Everything you need to send and track faxes with confidence.
Global Coverage
Reach recipients worldwide with reliable delivery across 100+ countries and regions.
Instant Tracking
Real-time delivery status, read receipts, and audit logs for every fax you send.
Simple, transparent pricing
Start free, scale as you grow. No hidden fees.
Free Trial
$03 days
Try Postfax.io with full features — no credit card required.
- 3-day full access
- Up to 20 pages
- Global fax delivery
- Delivery tracking
Monthly
$29/ month
Perfect for individuals and small teams with regular fax needs.
- Unlimited fax sending
- 500 pages / month
- Priority delivery
- Email notifications
- API access
Enterprise
Custom
Tailored solutions for large organizations with advanced requirements.
- Unlimited pages
- Dedicated account manager
- Custom integrations
- SLA guarantee
- Volume discounts
Support Center
We're here to help you send faxes with confidence.
Email Support
Reach our team for billing, technical, or account questions.
[email protected]Business Hours
Monday – Friday, 9:00 AM – 6:00 PM (UTC+8).
Avg. response within 24 hours
Enterprise & Custom Plans
Dedicated onboarding and integration assistance.
[email protected]Frequently Asked Questions
How does the 3-day free trial work?+
Sign up to get full platform access for 3 days with up to 20 pages. No credit card is required. After the trial, upgrade to a monthly plan or contact us for enterprise options.
Which file formats can I send?+
Postfax.io supports PDF, DOC, DOCX, PNG, and JPG. Files are converted and transmitted securely to the recipient's fax machine.
How do I track fax delivery?+
Every fax includes real-time status updates in your dashboard and email notifications when delivery is confirmed or failed.
Can I cancel my subscription?+
Yes. Monthly plans can be cancelled anytime from your account settings. Access continues until the end of the current billing period. See our Refund Policy for details.