How It Works: Send Faxes Online in 60 Seconds
No physical fax machine, landline, or costly monthly subscriptions required. Transmit documents securely to any fax machine worldwide in 3 simple steps.
Upload Document
Upload your files in PDF, TXT, JPG, or PNG format (up to 10MB total). You can also add an optional custom cover page text.
Enter Destination
Enter the recipient name and telephone fax number. We support domestic (US & Canada) and over 50 international destinations including Japan and Europe.
Dispatch & Track
Confirm via email for free sending (up to 3 pages) or dispatch immediately with premium priority. Watch your delivery status on our real-time tracking timeline.
How Web-to-PSTN Transmission Works in Action
Click any step below or let the interactive visualizer auto-play to see how digital documents are converted, encrypted, and delivered across telephone carrier networks to physical fax machines.
- Volatile In-Memory Processing: Uploaded PDF, TXT, or image files are rasterized in memory into CCITT Group 3/4 facsimile bitmaps without unencrypted disk persistence.
- Enterprise Carrier Bridging: Faxes are routed directly across Tier-1 telecom PSTN gateways with standardized ITU-T T.30 / T.38 audio modulation handshakes.
- Asynchronous Delivery Receipts & Purge: Webhook acknowledgements automatically trigger delivery confirmation receipts to your email and schedule disk purge after 48 hours.
Behind the Scenes: How Web Faxing Works
Traditional fax machines communicate over the Public Switched Telephone Network (PSTN) using analog audio tones defined by ITU-T recommendations (such as T.30 and T.38). When you use MyFax.Space:
- Document Rasterization: Your PDF, Word, or image file is converted into high-resolution monochrome CCITT Group 3/4 facsimile images.
- Carrier Gateway Bridge: Our backend establishes a secure API handshake with enterprise telecom gateways to initiate an outbound call to the destination line.
- Audio Handshake & Transmission: The recipient fax machine answers the line, negotiates baud rates (up to 14,400 bps / Super G3 33,600 bps), and prints the pages line-by-line.
- Instant Confirmation Webhook: Once the recipient machine sends an end-of-page acknowledgement signal (MCF/EOP), our system receives an asynchronous delivery receipt and emails your confirmation notice.
Comparison: Online Web Fax vs Traditional Fax Machine
| Feature | MyFax.Space Online | Traditional Fax Machine |
|---|---|---|
| Hardware Required | ✅ None (Any smartphone or browser) | ❌ Dedicated machine, toner & paper |
| Dedicated Phone Line | ✅ No landline needed | ❌ Landline telephone subscription ($30-60/mo) |
| Cost | ✅ Free (3 pages) or $3.29 pay-as-you-go | ❌ $100+ hardware + recurring phone bill |
| Privacy & Security | ✅ 256-Bit SSL/TLS + 48h auto-deletion | ⚠️ Pages sit exposed on open paper trays |
| Delivery Proof | ✅ Digital email timestamp & tracking timeline | Printed paper slip (prone to loss) |
Ready to Send Your Fax?
Send documents right now to government offices, medical clinics, courts, or employers in seconds.
📤 Send a Fax Online Now