Guide

How does online fax work?

Send a fax with no own fax machine required - simple, digital and from anywhere. This is how modern faxing over the internet works.

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Transmission report as proof

Quick answer

Online fax works by sending your digital document over the internet to a fax server, which then delivers it to the recipient's fax machine. You do not need your own fax machine - only a smartphone, tablet or computer with internet access. With FaxMonkey you simply upload your document, enter the fax number and pay - done.

How it works - step by step

Your online fax sent in just 3 steps

1

Upload document

Upload your document as a PDF, JPG, PNG or Word file. All common formats are supported - directly from your smartphone, tablet or computer.

2

Enter fax number

Enter the recipient's full fax number including country code (e.g. +49 for Germany). Our system automatically checks the correct format.

3

Pay and send

Pay securely via Stripe and click 'Send fax'. You will receive an immediate confirmation by email.

What you need

Internet connection

Stable internet via Wi-Fi or mobile network (3G/4G/5G) on your device

Digital document

Your document as a PDF, JPG, PNG, TIFF or Word file

Recipient fax number

The recipient's full fax number including country code

Your benefits

No fax machine needed

Save the purchase and maintenance of a fax machine. Fax directly from your smartphone, tablet or computer.

Available anytime

Send faxes around the clock, 7 days a week - regardless of office hours or location.

Secure and GDPR-compliant

Encrypted transmission, automatic deletion. Your documents are deleted after delivery.

Legally valid transmission report

You will receive proof of successful delivery by email - important for cancellations, deadlines and legal documents.

Tips

  • Save your document as a PDF for optimal transmission quality and readability
  • Double-check the fax number for typos - wrong numbers cannot be refunded
  • Use high-contrast documents with black text on a white background

Important to know

  • Online faxes can only be sent to real fax machines, not to normal phone numbers
  • The recipient's fax machine must be switched on and ready to receive for delivery to succeed

Send a fax without owning a fax machine? What once seemed unthinkable is everyday life today. Online fax makes it possible to send documents digitally and still have them arrive as a classic fax at the recipient. We explain how it works technically and why fax is still relevant today.

Whether you want to send a cancellation to your insurer, submit a signed contract to your lawyer or fax a medical certificate to your employer, with online fax you can do it in a few minutes without owning a fax machine.

How does online fax work technically?

Online fax combines the advantages of the digital world with proven fax technology. This is how the process works:

  • 1. Upload: You upload your document (PDF, image, Word) to our server
  • 2. Conversion: The document is converted to the fax format (TIFF)
  • 3. Transmission: Our fax server dials the recipient's fax number over the telephone network
  • 4. Reception: The recipient's fax machine prints the document, just like a normal fax

For you the process is fully digital - for the recipient a completely normal fax comes out of the machine. The technology behind it is complex, the operation is very simple.

Online fax vs traditional fax: the differences

Why should you use online fax instead of buying a classic fax machine? The advantages are compelling:

  • No hardware: No fax machine, no paper, no toner, no telephone line
  • Location independent: Fax from anywhere - at home, on the go or on holiday
  • Available 24/7: Send faxes anytime, even at night or on weekends
  • Digital proof: Transmission reports are automatically sent and archived by email
  • More affordable: No acquisition costs, no maintenance - you only pay per use

The only difference for the recipient: they will not notice one. The fax comes out of their machine just like a classic fax.

When is fax still needed today?

Despite email and digital communication, fax remains standard or even mandatory in many areas:

  • Authorities and public offices: Registry offices, tax offices, immigration authorities often prefer fax
  • Courts: Time-sensitive documents are often submitted by fax
  • Healthcare: Doctors, hospitals, pharmacies often communicate by fax for privacy reasons
  • Lawyers and notaries: Signed documents and powers of attorney are sent by fax
  • Cancellations: Insurers, gyms, mobile providers - fax is considered a reliable proof of delivery
  • Banks and financial institutions: Orders and approvals often require fax transmission

The reason: fax provides a transmission confirmation with proof that is recognised in court, unlike a simple email.

Frequently asked questions

What is the difference between online fax and normal fax?

With traditional fax you need a physical fax machine with a telephone line. With online fax a fax server takes over this task: your digital document is sent over the internet to the server, which then delivers it over the telephone network to the recipient's fax machine. The result is identical - the recipient receives a normal fax.

Is online fax as legally valid as normal fax?

Yes, online fax has the same legal validity as a traditional fax. You receive a transmission report with date, time and recipient fax number as evidence. This is recognised by authorities, courts and companies as proof of delivery - ideal for cancellations and time-sensitive documents.

How much does an online fax cost with FaxMonkey?

The first page costs 1,00 €, each additional page only 0,25 €. There is no basic fee, no subscription and no hidden costs. You only pay when you actually send a fax - securely via Stripe.

Who still needs fax today?

Surprisingly many institutions still require or accept fax: authorities and public offices, courts, doctors and hospitals, law firms, insurers, banks and notaries. Especially for cancellations, signed contracts and time-sensitive documents, fax is often the safest or required method of transmission.

How fast does an online fax arrive?

Usually your fax reaches the recipient within 1-5 minutes. The exact duration depends on the availability and speed of the recipient's fax machine. In case of a busy signal our system automatically makes multiple delivery attempts. You will be notified by email as soon as delivery was successful.

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