FaxZero is the most generous truly free fax service I tested, with GotFreeFax and FaxBurner close behind for specific jobs. Every free option comes with page limits, branding, or daily caps. This guide breaks down exactly what each free tier gives you and where the catches hide.
How we tested the free tiers
Every service in this roundup earned its place the same way. I sent an identical three page test document, a typed letter, a filled out form, and a photo of a handwritten note, through each free tier and compared the results side by side.
I tracked four things: how many pages the free tier allows, how many faxes you can send per day, what branding or ads land on your document, and how the service confirms delivery. I also noted whether a credit card is required, because a free trial that needs your card is not a free service in my book.
Everything here reflects my testing as of writing. Free tiers change quietly and often, so treat exact page counts as a snapshot and check the provider’s current terms before you rely on one. You can read more about how I evaluate services on our about page, and find deeper single service reviews in our reviews section.
FaxZero: the most generous truly free option
FaxZero has been the default answer to the free fax question for years, and my testing shows why. The free tier lets you send a fax of up to three pages plus a cover page, and as of writing you can send around five free faxes per day to US and Canadian numbers.
The catch is visible the moment your fax arrives. FaxZero places an advertisement on the free cover page, which is how the service stays free. My test faxes arrived quickly and legibly, with delivery confirmation by email, but the recipient always sees that branded cover sheet.
If the ad on the cover page bothers you, FaxZero also sells a one-time paid send with no ads and a higher page limit. For a single formal document, that small fee can be worth it.
FaxZero is send only. There is no inbound number, no document storage, and no international sending on the free tier. For a quick outbound fax inside the US or Canada, though, it remains the most generous option I have tested, and it asks for nothing beyond your email address.
GotFreeFax: ad-free pages, smaller allowance
GotFreeFax takes the opposite approach to FaxZero on branding. The free tier sends your document without ads on the pages themselves, which matters when you are faxing something formal like a signed agreement or a medical release.
The trade-off is a smaller allowance. As of writing, the free tier covers up to three pages per fax with roughly two free faxes per day, again limited to US and Canadian numbers. The site looks dated, and there is no app, no account system, and no receiving. You enter the recipient, upload a PDF or Word file, and send.
In my testing the faxes went through reliably and confirmation emails arrived within minutes. The output quality matched what I got from paid services on the same test document. For a clean, ad-free fax at zero cost, this is the one I reach for first.
Faxend, the iOS app we build, turns a photo or PDF into a fax in a couple of taps. It is free to download; per-fax or plan pricing applies. We test it the same way we test every service on this site.
FaxBurner: the free option that can also receive
FaxBurner is the only free option on this list that handles receiving. The free plan gives you a temporary fax number, so people can fax documents to you, and inbound pages arrive in the iOS or Android app and by email.
As of writing, the free tier includes a monthly inbound page allowance and a small lifetime sending allowance. The temporary number rotates rather than staying permanently yours, so it suits one-off situations, not a business line. Check FaxBurner’s current plan details before depending on it, because these limits have shifted over the years.
In my testing, inbound faxes appeared in the app within a minute or two, and the PDF quality was solid. If your problem is receiving a fax rather than sending one, start here before paying for anything.
Free tiers on paid services: Fax.Plus and friends
Several paid services offer free tiers or trials, and they behave differently from the truly free sites above.
Fax.Plus has historically included a small one-time free page allowance for new accounts, which is useful for a single short fax but is not a recurring free tool. iFax and several App Store fax apps lean on time-limited trials that convert into subscriptions, so read the trial terms carefully before entering payment details. HelloFax, a long-time free-tier favorite, has been winding down, so check its current status before recommending it to anyone.
My rule of thumb after testing dozens of these: a free tier with a hard page cap is honest, while a free app that requires a card and starts a trial clock is a subscription with extra steps. Neither model is bad, but you should know which one you are signing up for before your card does.
Free fax services compared
Here is how the main free options compare, based on my testing as of writing. Limits change without notice, so verify current terms before sending anything urgent.
| Service | Free sending | Receiving | Ads or branding | Best for |
|---|---|---|---|---|
| FaxZero | Up to 3 pages, about 5 faxes per day | No | Ad on cover page | Most free pages per day |
| GotFreeFax | Up to 3 pages, about 2 faxes per day | No | None on document | Clean, formal documents |
| FaxBurner | Small lifetime send allowance | Yes, temporary number | Minimal | Receiving a one-off fax |
| Fax.Plus free tier | Small one-time page allowance | Paid plans only | None | Trying a full service |
All of the truly free tiers above are limited to US and Canadian destinations. Free international sending is close to nonexistent, and I cover the paid workarounds in our broader ranking of online fax services.
When free is not enough
Free tiers solve the twice a year fax problem. Once you fax monthly, need more than three pages at a time, or need to reach an international number, the math changes.
Pay-per-use services charge a flat fee per fax with no subscription, which usually beats a monthly plan for light users. Entry-level subscriptions from established providers typically land somewhere around $8 to $13 per month as of writing, with page allowances that dwarf any free tier. Check current pricing directly with each provider, because promotional rates move around.
If your documents live on your phone, an app can be the fastest path. Faxend, which we build, is our iOS app for exactly this case: it turns a photo or PDF into a fax in a couple of taps, and it is free to download. To be clear about the limits, sending uses paid credits rather than a free allowance, and it is iOS only, so Android and desktop users are better served by the web services above.
Whichever route you take, match the tool to your actual volume. Paying for a large monthly page plan to send four pages a year is the most common faxing mistake I see readers make.
Frequently asked questions
Yes. FaxZero, GotFreeFax, and a few similar sites let you send short faxes to US and Canadian numbers at no cost. Expect limits of about three pages per fax, a daily cap, and possible branding on the cover page. Longer or international faxes usually require a paid option.
Most free services cap a single fax at around three pages, with a small number of free sends per day. Free tiers on paid services sometimes include a one-time page allowance instead. Limits change often, so check the service’s current terms before sending anything time sensitive.
Some do. FaxZero places an advertisement on its free cover page, which is how the free tier stays free. GotFreeFax sends without ads on the document itself. If you are faxing something formal, pick a service that keeps the pages clean or pay a small one-time fee for an ad-free send.
Receiving is harder to get free than sending. FaxBurner offers a temporary inbound number with a monthly page allowance on its free plan, as of writing. Most other free tools are send only. If you need a permanent fax number, expect to pay a monthly fee for it.
They are fine for routine paperwork, but I would not send medical or financial records through an ad-supported free tool. Free tiers rarely offer encryption guarantees or a BAA for HIPAA purposes. For sensitive material, use a paid service that publishes its security practices and compliance documentation.
