How to Send a Fax Online for Free
If you have a single document to fax and don't want to buy anything, you can send it online during a 7-day trial that asks for no credit card to begin. That covers the classic one-off situation — a form for a doctor, a signed lease, a document a bank requested — without a fax machine, a phone line, or a purchase. Here's how the trial works honestly, and where the line sits between a no-cost send and an ongoing plan.
Is online faxing genuinely free?
It's free to start, and honest framing matters here. The 7-day trial lets you send without paying and without entering a card, which is enough for a one-time document. It is not a permanent no-cost service — the trial is send-only, runs from a shared number, and has a small per-trial page cap, after which continued sending moves to a paid plan starting at $12.99/month. Services that advertise unlimited faxing at no cost usually attach ads to your cover page or cap you so tightly that a normal document doesn't fit, so the trial-then-plan model is the straight version.
How to send a fax online at no cost
- 1Turn your document into a PDF by scanning it on your phone or exporting it from an app.
- 2Open Send FAX Mail, create an account, and start the 7-day trial — no card is required to begin.
- 3Verify your email address, which unlocks sending.
- 4Upload the PDF and enter the recipient's fax number with area code.
- 5Add a cover note if you like, then send.
- 6Keep the confirmation email that records the delivery time.
Before you send
Keep your document short and clear to fit comfortably within the trial send, and scan in good light so nothing needs re-sending. Because the trial sends from a shared number, it's meant for outbound documents rather than receiving replies — receiving needs your own number, which comes with a plan. If you already know you'll fax more than once or need a reply, starting a plan is more economical than repeating a one-time trial workaround.
Send a fax online free — FAQ
The honest catch is that the no-cost path is a 7-day trial, not a permanent service: it's send-only, uses a shared number, and covers a limited number of pages before continued use moves to a paid plan. That's still enough for a genuine one-off document, and it avoids the ad-laden cover pages that heavily promoted no-cost fax sites tend to add.
No card is needed to begin the trial and send your first document. A card comes into play only if you decide to continue on a paid plan after the trial, so a one-time send costs you nothing and requires no payment details up front.
Receiving isn't part of the no-cost trial, because it requires a dedicated inbound number, and those come with a paid plan. The trial is built for sending documents out; if you need to receive a reply, a plan starting at $12.99/month assigns you your own number to receive on.
Send your fax in minutes
Upload from any device and send with delivery confirmation — no fax machine required. Plans from $12.99/month.
7-day free trial · No credit card required