How to send a fax online
Upload your document to an online fax service, type the destination fax number and send. The service dials the fax machine for you over the phone network. With ConfirmFax it costs $2.99 and you’re charged only if it’s delivered.
Online fax services turn your PDF or photo into a real fax call. The office on the other end receives it on their fax machine like any other fax.
Step by step
- Have the document ready as a PDF, or take a clear photo of each page.
- Go to confirmfax.com (or open the app) and add the pages.
- Type the fax number with its area code. Add a cover page if the office asked for one.
- Pay $2.99. The status changes to “Delivered” when the other machine confirms every page.
- Keep the delivery receipt. It shows the time, number and page count as proof.
What you need
A fax number (not the office’s phone number), the document, and a card or Apple Pay / Google Pay. You don’t need a fax machine, a phone line or an account.
How long it takes
Most faxes are delivered within one to three minutes. Longer documents take about 30 seconds per page. If the line is busy, ConfirmFax retries once automatically.
ConfirmFax costs $2.99 per fax with no subscription. On the website you’re charged only when the fax is delivered.
Questions
Is sending a fax online legal and secure?
Yes. An online fax arrives exactly like a fax from a machine. ConfirmFax encrypts uploads in transit, keeps files private, and deletes them after 30 days.
Can I send a fax online for free?
Some sites send a few pages free with an ad cover page and daily limits. ConfirmFax costs $2.99 per fax with no ads, no daily limit and a delivery receipt.
Last checked November 2026.