How to send a fax online

Why send a fax online?

Fax machines may be disappearing from homes and offices, but fax itself is far from dead. Hospitals, government agencies, courts and many businesses still rely on fax because it provides a confirmed, printed delivery that email cannot guarantee.

Online fax services let you send a fax from any device. Computer, tablet or phone. Without owning a fax machine or subscribing to a monthly plan. You simply upload a document, enter the recipient's fax number, and pay per page.

What you need

Sending a fax with unofax requires just four things:

• A document: PDF, Word, image or other supported file
• The recipient's fax number: including the country code
• A payment method: credit card, debit card, Apple Pay or Google Pay
• Your email address: for delivery confirmation and proof of receipt

No account, no subscription, no fax machine. Just upload, pay and send.

Step by step: send a fax with unofax

Here is how it works:

• Upload your document: drag and drop or tap to select a file. unofax accepts PDF, Word, PNG, JPEG, GIF, WebP, HEIC, TIFF and more.
• Enter the fax number: select the destination country and type the recipient's fax number. unofax formats the number for you.
• Enter your email: provide your email address for delivery confirmation and proof of receipt.
• Preview your fax: check the page-by-page preview to make sure everything looks right. Add a free cover sheet if you need one.
• Pay securely: the price is shown upfront with no hidden fees. Pay with card, Apple Pay or Google Pay.
• Done: unofax sends your fax immediately. You will receive a confirmation once it has been delivered.

That's it. Most faxes are delivered within a few minutes.

Tips for a successful fax

A few simple steps can help make sure your fax arrives without problems:

• Use a high-quality file: clear, high-contrast documents produce the best results. Avoid photos of documents when possible; scan or use the original digital file instead.
• Double-check the fax number: include the country code and make sure there are no extra or missing digits. A wrong number means the fax cannot be delivered.
• Add a cover sheet: a cover sheet helps the recipient identify your fax and route it to the right person, especially in large offices.
• Wait for the confirmation: unofax will confirm delivery once the receiving fax machine has acknowledged the transmission. This usually takes a few minutes.
• Save your reference ID: every fax gets a unique reference ID. Keep it in case you need to follow up.

Common questions

Quick answers to the questions we hear most often:

• Do I need a fax machine?: No. unofax sends your document to the recipient's fax machine on your behalf. You do not need any fax hardware.
• What file formats are supported?: PDF, Word (.doc, .docx), PNG, JPEG, GIF, WebP, HEIC, TIFF and more. Your file is converted automatically.
• How do I know my fax was delivered?: unofax provides a delivery confirmation once the receiving fax machine acknowledges the transmission.
• How much does it cost?: Pricing is per page and depends on the destination country. The exact price is shown before you pay. No surprises.