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Sometimes you need to send a fax. But not many people have a fax machine or even access to one. There is a simple solution: online fax services. Online fax services, sometimes called fax apps, are convenient to use and easier to work than a physical fax machine. The best online fax services make your life easier whether you send faxes regularly or hardly ever. And if you have just one fax to send occasionally and don't want to pay, you can absolutely send a few fax pages for free.
What about receiving faxes? If you're still hanging onto an all-in-one printer that includes fax service, you may be able to get rid of it if you transition to an online fax service. You need to have a paid account to receive incoming faxes using all the fax services we've seen. You retrieve the incoming files digitally by logging in to your online fax service account, or you can have them delivered to your email inbox in some cases.
Faxing is still a pain, but the best faxing services modernize the experience. So here is a list of the best fax services, followed by more information you may need if you're learning how to send or receive a fax without using a fax machine.
Table of Contents
Fax.Plus
Best for Low to Moderate Faxing Needs
Why We Picked It
Fax.Plus is our top pick for paid faxing services, though it's also very good when you need to send a short fax for free. It's affordable, easy-to-use, and packed with great features. Prices for paid plans have gone up since 2022, but they're still a reasonably good deal. The cheapest paid plan is $8.99 per month (you get a slight discount if you pay annually). For that price, you can send or receive 200 pages per month. If you exceed that limit, you pay 10 cents per page, which is a fair and standard rate. All the paid plans are subscription-based.
For people with moderate faxing needs, Fax.Plus works great for free. Anyone can send 10 pages at no cost; if you have to send more pages, they cost 20 cents each. At the free level, you can send faxes but not receive them.
Who It's For
Fax.Plus is excellent for people who have light to moderate faxing needs. If you need to send a fax for free just one time and the fax is less than 10 pages, Fax.Plus is great. If you need a dedicated number for incoming faxes and you generally send and receive fewer than 200 pages per month, Fax.Plus is the most economical faxing service you can get. If you need a little more than what Fax.Plus's lowest plan offers, we recommend Hello Fax.
FaxZero
Best Free Fax Service
Why We Picked It
FaxZero is a freemium fax service that can take care of most of your fax-sending needs. While it is relatively bare-bones, it is the most generous free service we've seen, with replenishing page allocations every day. You can send up to five faxes per day, and each fax can be a maximum of three pages (plus a cover page). However, faxes from paying customers take precedence over free ones in terms of delivery speeds. Additionally, with the free tier FaxZero adds its own branding to cover pages and your entire fax file size cannot exceed 25MB.
Paid faxes cost a flat $2.09 for up to 25 pages plus a cover sheet with no FaxZero branding on it, and you can pay via credit card, debit card, or PayPal. FaxZero does not offer an incoming fax services, only outgoing ones.
Who It's For
Because it lets you send faxes every day for free, FaxZero is great for people who use faxing for activism, such as sending faxes to government officials. It's also a great option if you have one-off faxing needs because even if you have to pay $2.09 for a 25-pager, that's still a very low rate with no subscription fee. So if you don't need much from a fax service (including the ability to receive faxes), then FaxZero is your best option.
HelloFax
Best for Small Businesses
Why We Picked It
HelloFax, which is now owed by Dropbox (and in some places is called Dropbox Fax) is an excellent online fax service that offers a great user experience, excellent value, and a built-in editor that makes dealing with attachments simple. Paid accounts start at $9.99 per month for a Home Office plan, which lets you send or receive 300 pages per month. If you exceed that limit, it's just 5 cents per page, which is the lowest overage charge we've seen. For small businesses with moderate needs, it's a very good plan that includes some e-signature capabilities. In fact, the e-signature features, alongside integrated form-filling, means that you never have to print, sign, and scan documents to send them again.
HelloFax does offer some faxing for free. If you need to send a fax, you get 5 pages for free (in your lifetime, not per month). After that, it costs just 99 cents per fax for faxes up to 10 pages, plus 20 cents for every page after, no subscription needed. One more benefit of HelloFax is that it offers simple, self-service cancelation through your account.
Who It's For
If you need a paid faxing service, HelloFax is one of our top picks, along with Fax.Plus. Here's the difference: Fax.Plus has a lower starting price ($8.99 per month) but only supports 200 pages sent or received per month. HelloFax costs slightly more ($9.99 per month) and increases the pages-per-month to 300. HelloFax's Home Office plan comes with additional features, too, such as 5 people being able to use the account.
For free users, HelloFax is a great option if you need to send a one-off fax of 5 pages or fewer. It's also wonderful if you have very modest but recurring fax-sending needs since a 10-page fax cost less than a dollar and doesn't require you to have a subscription—and you do get access to an excellent online interface for keeping track of what faxes you've sent.
RingCentral
Best for Large Businesses
Why We Picked It
RingCentral offers a variety of plans and packages for business communication. There is a standalone faxing plan (it was nixed for a few years but now it's back), or you can get faxing as part of a larger package. The basic faxing plan is called RingCentral Fax 3000 ($27.99 per person per month with a discount for paying annually). It includes 3,000 pages sent or received per person per month on the plan. We like that RingCentral has apps that include faxing services for Mac, Windows, iPhone, Android, and the web. If you're looking for a larger business communication package, the Advanced plan includes faxing (the cheaper Core plan does not) and it starts at $35 per person per month. RingCentral Advanced adds video calling/web conferencing, SMS, phone, and other types of communication.
Who It's For
RingCentral is best if you run a medium or large business with sizable faxing needs, although it's really ideal if you're also shopping for other business communication and can buy them all together for a good price. Another convenience is that RingCentral lets you use the same phone number to receive voice calls and send text message as you do to send and receive faxes.
SRFax
Best for HIPAA-Compliant Options
Why We Picked It
SRFax is an intuitive and reasonably priced online faxing service, although its rates have gone up steadily over the years. SRFax starts at $11.45 per month, which includes 200 pages of incoming or outgoing faxes. If you exceed that limit, the price is 8 cents per page. We like that SRFax supports multi-factor authentication, but it does not have a dedicated mobile app and lacks digital signature tools. While there is no free account, you can get a free 30-day trial. The company also specializes HIPAA-compliant plans in the U.S. and follows PHIPA guidelines in Canada. Those healthcare-focused plans are available in four tiers of service starting at $12.60 per month.
(Editors' Note: SRFax is owned by Ziff Davis, PCMag's parent company.)
Who It's For
SRFax has attractive plans for healthcare practices. While many fax services offer HIPAA-compliant plans, we like that SRFax offers several of them at varying price points, serving the needs of small practices and large organizations alike. The Healthcare Lite plan, for example, starts at $12.60 per month for 200 pages per month, with received and sent pages pooled. Additional pages over that limit cost a very low rate of 5 cents each.
What Is Online Faxing?
Online fax services let you send and receive faxes without using a fax machine. To send a fax, you typically generate a PDF or scan the document pages you want to send. After that, you upload the file to the fax service. You then fill out additional information, such as the recipient's name and fax number, and optionally add a cover page. The online fax service takes care of the rest. The recipient receives the documents just the same as if you had fed them through a fax machine. Sometimes, you can send a fax through email, which we'll cover a bit later.
To receive faxes through an online fax service, you have to have a paid account, which will get you a dedicated fax number. In most cases, you either log into a web portal to retrieve digital versions of faxes you receive, or they can be sent to your email.
If you plan to use an online fax service regularly, say, sending more than one or two faxes per month, you'll want an account with a paid subscription plan. Otherwise, you can get by using a free service, such as FaxZero, or you can pay per fax without a subscription using HelloFax (now owned by Dropbox and in some places referred to as Dropbox Fax).
How to Send a Fax Online
All the fax services included here offer a web interface, but their utility wildly varies. Well-designed software can inspire user confidence, while archaic services can just as easily undermine it.
Of the services we tested, HelloFax is the best when it comes to having a highly functional and clear web interface.
When sending a fax from a web portal, all your attachments (that is, the fax pages) are sent as images. All the fax services we tested support a generous range of file types, though the file size limit varies. The majority of the services let you preview attachments before you send them. HelloFax also includes tools for creating and applying digital signatures.
For more details, see our article explaining how to send and receive a fax online.
How Much Does Sending Online Faxes Cost?
Most online fax services want you to sign up for a subscription and pay a monthly fee. Each subscription typically includes an allotment of pages that you can send each month. Some companies distinguish between how many pages you can receive and how many you can send. Other services offer a pool of pages, which is a more flexible approach. With a pool, if you send more faxes than you receive, you can make the most use of the total allotment.
Pooled-page plans also make it easier to avoid paying overage fees, which are per-page fees assessed when you exceed your monthly allocation. These fees are typically around 10 cents per page. HelloFax charges just 5 cents per page for overage, which is the lowest rate you'll find.
Depending on your service, your plan might not include international faxing, though faxes from the US to Canada and the UK sometimes do not incur extra costs. Some paid plans include international coverage. It's not unusual for an online fax company to charge an additional fee to send an international fax, sometimes on a graduated scale, depending on the recipient's location, and usually per page.
Setup fees are rare in the world of online fax services. Only one of the services we tested, eFax, charges one ($10). Between the setup fee, non-competitive prices, and eFax's merely average list of features, it didn't make the cut to appear in this list of the best fax apps.
What Is the Best Free Online Fax Service?
If you rarely send faxes, a free faxing service will do. Three services are the best for free faxing: Fax.Plus, HelloFax, and FaxZero.
Fax.Plus lets you send 10 pages for free, ever, from your account. Similarly, HelloFax lets you send 5 pages for free. FaxZero lets you send 5 faxes per day for free, and each fax can include 3 pages plus a cover. FaxZero's business model runs on advertisements.
There's simply no reason to opt for a paid service if all you need to do is send a fax once in a while. If receiving faxes is a requirement for you, then you need a paid plan.
How to Fax From Your Phone or Tablet
The majority of online fax services offer Android apps and iPhone apps. With a mobile faxing app, you can just take a picture of a document and send it on its way. Of the services included in this list, Fax.Plus and RingCentral offer mobile apps.
We prefer online fax services to have dedicated mobile apps, but, at the very least, they should have a mobile website. FaxZero and SRFax have sites that are very usable via mobile browsers. HelloFax lets you send a fax from your mobile device, but you have to go through your email account to do it.
How Can You Receive a Fax to Your Email (and Vice Versa)?
Modern businesses and workers are familiar with email workflows, and most of the fax services included here offer similar fax-to-email capabilities. In practical terms, fax services convert received faxes into email attachments, and conversely, turn email fields and attachments into their fax equivalent. As you can send and receive email from anywhere, this approach makes a fax service more universally available.
The process of sending a fax via email is fairly straightforward and doesn't vary much from service to service. You type the fax number—including country and area code—into the address line, followed by an email domain specific to the fax service (for example [email protected]). The subject line and body text appear on the fax cover page, while any attachments appear as separate pages. Your fax number appears as the sender, so there's no confusion about where the message originated.
How to Choose a Fax Number
Most services let you select an area code and either assign you an available phone number for receiving and sending faxes or let you choose from a list of available numbers. Most also let you port over an existing fax number if you have one.
If you don't want people to have to pay to fax you, consider getting a toll-free fax number, which is usually free of charge once you have a paid plan. RingCentral offers vanity numbers for your fax number, though we only recommend RingCentral for medium to large businesses that send or receive a high number of faxes every month.
Some industries still rely on faxing for various reasons, and knowing where to turn online when you need to send a fax to one of them is much easier than running out, pages in hand, to find a business that offers faxing services in-house.
But faxing isn't the only way to deliver documents, so be sure to check out the numerous secure methods for file sharing and sending encrypted email.
