Online fax services can conveniently handle all your faxing needs. Free options let you send documents occasionally, while paid services offer much larger page allowances for sending and receiving faxes. The best part is that you don’t even need hard copies of the pages you want to send or a traditional scanner. Faxing is less convenient than purely digital communication methods, but these apps at least help modernize the experience. We’ve been covering fax services for more than a decade, and the entries we highlight in this list are cost-effective and reliable. Dropbox Fax is our favorite, but you should still check out the other services we include, then read on for everything you need to know about online fax services.
Deeper Dive: Our Top Tested Picks
EDITORS’ NOTE
April 2, 2026: With this update, our lineup of recommended online fax services remains unchanged. We retested all the services on our list, as well as other popular services that didn’t make it.
Dropbox Fax (formerly HelloFax) is the top online fax service for most people. Its fax quality was among the best we tested, and its interface is simple and user-friendly. It has the most flexible pricing, with a pay-as-you-go option, subscription plans, and free pages when you sign up. The setup process is quick, too.
Value: Dropbox Fax distinguishes itself by offering pay-as-you-go faxing, starting at $0.99 per fax for up to 10 pages and $0.20 for each additional page. Most people just need to send faxes occasionally, and pay-as-you-go pricing is more convenient than a monthly subscription. Dropbox Fax also provides five free pages when you sign up, and you can earn another 15 pages for actions like syncing your Gmail contacts. As such, you might not have to spend any money at all.
Dropbox Fax’s subscriptions are a good value if you need to fax more than a few times per month. Plans start at $9.99 per month for up to 300 pages sent or received, the ability to receive faxes, and email-to-fax support. Dropbox Fax lets you share this subscription with up to five people, such as coworkers or family members. Plans scale up to $749.99 per month for 30,000 pages and up to 1,600 senders.
Ease of use: Dropbox Fax has a sleek user interface. To get started, click the big Send a Fax button, then drag and drop a document. You can set up integrations to forward received faxes right to a Box, Dropbox, Google Drive, or Microsoft OneDrive cloud storage account. The service doesn’t have dedicated Android or iOS apps, but the website works well on a mobile web browser. With the mobile website, you can take a photo of a document with your smartphone’s camera to fax it or upload a file.
Fax quality: Dropbox Fax delivered the best overall fax quality in our tests, with clear, readable text and lines in test documents we faxed to another online fax service. Even with a challenging document featuring detailed color images, Dropbox Fax converted everything to a legible black-and-white format for sending.
Businesses and professionals: This service delivers excellent fax quality, has a modern user interface, and works with several cloud storage services, making it an excellent choice for work environments. Subscriptions also deliver good value and are shareable among multiple people. Dropbox told us that Dropbox Fax doesn’t offer HIPAA compliance on any of its plans, however. If you need HIPAA compliance, look elsewhere.
People who need to fax occasionally: Dropbox Fax’s pay-as-you-go pricing is a great value, since it lets you avoid having to remember to cancel a subscription. And, with the free pages you get for signing up, you might be able to get away with spending nothing.
Fax.Plus is a capable faxing service, and its modern interface has easy-to-understand controls. Its subscriptions are the least expensive among the services we recommend, so it’s a good choice if you plan to fax frequently. The service’s dedicated mobile apps for Android and iOS work well.
Value: Fax.Plus provides 10 free pages when you sign up. After that, you need a subscription. It doesn’t offer pay-as-you-go pricing like Dropbox Fax.
This service’s plans cost a bit less than Dropbox Fax’s. For example, the Basic tier goes for $8.99 per month for 200 pages sent or received. Fax.Plus’s plans are for just one user until you get to the Business plan, which costs $34.99 per month for up to 1,000 pages. Dropbox Fax makes it easier to share an account among multiple people, allowing up to five senders on its base paid plan, for comparison. Fax.Plus offers HIPAA compliance only with its Enterprise plan, which costs $99.99 per month.
Ease of use: The service offers a modern web experience for sending, viewing, and browsing faxes. Everything loads very quickly. Unlike most other fax services we tested, it also offers mobile apps for Android and iOS. The apps work well and integrate with the Scan.Plus and Sign.Plus apps (from the same developer, Alohi).
Fax quality: Fax.Plus delivered excellent fax quality in our testing—nearly as good as the class-leading Dropbox Fax. The latter’s advantage was mostly noticeable on pages with detailed images. For text documents, Fax.Plus and Dropbox Fax performed similarly.
Mobile faxers: Fax.Plus’s Android and iOS apps work great, and you can easily browse incoming faxes, sent faxes, and faxes in progress. With the app, you can also get push notifications on your phone when you receive a fax.
Semi-frequent faxers: If you fax often enough that a subscription makes sense, Fax.Plus offers the least expensive plans among the services we recommend. The 200-page pool you get with a Basic plan is more than sufficient for moderate faxing needs.
FaxZero is a bare-bones, freemium fax service that can handle most basic needs. It’s the most generous option we tested, since it lets you send up to five faxes with files up to 25MB per day, all for free. It offers the lowest fax quality among the services we tested and adds branding to the cover letters it sends, but it’s still more than sufficient for many people.
Value: FaxZero lets you send five faxes per day, each with up to three pages and a cover letter. Most other fax services give you a small, non-replenishing pool of free pages when you sign up, at most. FaxZero says the advertising on its website supports this service. If your needs exceed the free allotment, you can also pay $3.29 per fax to send faxes of up to 25 pages. A 25-page document would cost you $3.99 with Dropbox Fax, for comparison, but its pay-as-you-go model is a better deal for most jobs with fewer pages (beyond FaxZero’s free limit). You can’t use FaxZero to receive faxes.
Ease of use: This service’s website is extremely easy to use, and you don’t even have to sign up for an account. You just enter some information in a few text boxes and upload the file you want to fax. Then, FaxZero just asks you to click an email confirmation link to finalize the send.
FaxZero prioritizes paid faxes over free ones, so speed might be an issue during busy times. Nonetheless, it delivered faxes quickly in testing. The service doesn’t offer a mobile app, but the site resizes adequately for mobile screens.
Fax quality: FaxZero’s fax quality doesn’t impress. The text in our test files was more difficult to read than in those we sent through Dropbox Fax, and the service also did a poor job of sending images. FaxZero’s fax quality is still sufficient for sending a legible government form, letter, or resume, however.
Free users: FaxZero is the only service we tested that lets you send free faxes every day. Whether you plan to fax a few pages regularly or sporadically, this service won’t ever demand payment. FaxZero’s website even recommends using it for activism, such as reaching out to your congressperson or senator.
People with simple documents: The service delivers simple, black-and-white, text-focused documents in a legible format. It will do the job if you need to fax a readable letter or form to a business, medical, or government office.
RingCentral offers a faxing service as a standalone product or as part of a larger business package. Its plans are ideal if you need to send a large number of pages every month. We like that RingCentral supports HIPAA compliance and has apps for all major platforms.
Value: RingCentral is an excellent value if you are looking to fax a large number of pages. At 3,000 pages for $27.99 per person per month or an unlimited number of pages for $35 per person per month, RingCentral’s allowances are far above other subscriptions. Dropbox Fax charges $39.99 per month for just 1,000 pages, for example. However, RingCentral’s pricing is per user, whereas Dropbox Fax lets you split those 1,000 pages with up to 20 different senders. Note that RingCentra’s $35 plan includes video conferencing and VoIP features.
For individuals, RingCentral’s pricing isn’t competitive unless you want more than 500 pages per month. Its seven-day trial is somewhat generous (even if it requires a payment method). Services like Dropbox Fax and Fax.Plus give you just a limited number of pages to try the service.
Ease of use: This service is available on the web, as well as via dedicated desktop (macOS and Windows) and mobile (Android and iOS) apps that combine all of Ring Central’s services. It’s easy to use—the Fax tab has an obvious button for sending faxes and organizes all of your received faxes. If you use other RingCentral services, it can be useful to have everything in one place.
Fax quality: RingCentral produced high-quality faxes with excellent detail. In some cases, the detail might be a little too much, however. For example, the service rendered the gray background on an IRS Form 1040 as a series of small dots rather than leaving it blank, as most other services we tested did. However, everything was still legible.
Businesses: RingCentral’s plans are designed for businesses of all sizes, especially those that use the company’s VoIP service. The large fax allowances and capable cross-platform apps add to its appeal. Most HIPAA-compliant fax services are more expensive and offer fewer pages.
Frequent faxers: If you need to send a lot of pages, RingCentral is your best bet. None of the other services we tested offers unlimited pages at any price.
Best for HIPAA Compliance
SRFax
SRFax primarily focuses on HIPAA-compliant health care plans. It’s an excellent value compared with other HIPAA-compliant fax services, which are often much more expensive. Its web application works well, although its interface feels a little more dated than others’.
Value: SRFax offers the least expensive HIPAA-compliant fax plans among the services we tested, starting at $12.60 per month. You can also share plans with multiple people. SRFax also offers HIPAA-compliant plans starting at $11.45 per month for up to 200 pages sent or received. Unfortunately, SRFax no longer offers a free trial.
Ease of use: This service has a professional interface that works well for sending and receiving faxes. After signing in, you can click the Send a Fax button to start sending a fax or the Faxes Received button to see a history of incoming faxes. The web app feels a little more dated than that of some other services, but it works well. SRFax doesn’t maintain dedicated smartphone apps, but its site works fine in a mobile browser.
Fax quality: SRFax’s quality wasn’t as impressive as some of our favorites, including Dropbox Fax and Fax.Plus. However, faxes are still very legible and good enough for business and medical administration purposes.
Shared account users: SRFax makes a lot of sense for businesses that intend for multiple people to share a HIPAA-compliant plan. Multiple employees can access the page pool at no additional cost.
Small businesses that need HIPAA-compliant faxing: Businesses that need to send occasional HIPAA-compliant faxes should find SRFax to be a good value. At $12.60 per month for up to 200 pages sent or received, it’s the least expensive HIPAA-compliant fax service we tested. Many other services only offer HIPAA compliance at more expensive plan tiers.
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The Best Online Fax Services for 2026
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Buying Guide: The Best Online Fax Services for 2026
What Is Online Faxing?
Online fax services enable you to send and receive faxes without a traditional fax machine. To send a fax, you typically need to combine the pages you want to send into a single digital document. Next, you upload the file (usually a DOC, JPG, PDF, or PNG) to the fax service. You fill out additional information, such as the recipient’s name and fax number, and optionally add a cover page. The online fax service handles the rest. The recipient receives the documents just as if you had fed them into a fax machine. Sometimes, you can send a fax via email.
To receive faxes through an online fax service, you need a paid account with an associated fax number. In most cases, you either log into a web portal to retrieve digital versions of faxes you receive or access them via email. Many services automatically send incoming faxes to cloud storage services such as Dropbox, Google Drive, or Microsoft OneDrive as well.
How to Send a Fax Online
All the fax services we tested offer a web interface, but they vary in usability and features. Among the services we tested, Dropbox Fax offers the most clear-cut design. However, all the services we recommend are more than usable.
Dropbox Fax lets you easily upload documents for sending (Credit: Dropbox/PCMag)
When you send a fax from a web portal, the service transmits all your attachments (that is, the fax pages) as images. All the fax services we tested support a generous range of file types, though the file size limit varies. The majority of services allow you to preview attachments before sending them. Dropbox Fax and Fax.Plus also include tools for creating and applying digital signatures.
How Much Does Sending Online Faxes Cost?
Most online fax services push you to sign up for a subscription and pay a monthly fee. We like Dropbox Fax because you can pay as you go—$0.99 per fax for up to 10 pages, with each additional page costing $0.20. If you regularly send faxes, a subscription is a better value—Dropbox Fax also offers subscriptions, so it’s the most flexible service we tested. Each subscription typically includes a page allotment you can use each month. Some companies distinguish between how many pages you can send and receive. Others offer a pool of pages, which is a more flexible approach.
Pooled-page plans also make it easier to avoid overage fees, which are per-page fees you incur when you exceed your monthly allocation. These fees range from 1 to 10 cents per page, depending on your service and plan. Dropbox Fax charges 5 cents per page for overages, for example.
Depending on your service, your plan might not include international faxing. However, faxes from the US to Canada and the UK are sometimes exempt from 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.
What Is the Best Free Online Fax Service?
If you rarely send faxes, consider a free faxing service, such as FaxZero. It allows you to send five faxes per day for free, with each fax including up to three pages and a cover. FaxZero’s business model is based on advertising.
FaxZero lets you send faxes for free every day (Credit: FaxZero/PCMag)
Dropbox Fax provides five free pages when you sign up, and you can earn 15 extra pages by performing basic tasks like syncing your Gmail contacts. Fax.Plus gives you 10 free pages when you sign up, too. If you just need to fax a few pages one time, you can get away with Dropbox Fax or Fax.Plus. If you need to receive faxes, you need a paid plan.
How to Fax From Your Phone or Tablet
The majority of online fax services offer ways to send faxes from an Android or iOS device, either via an app or a mobile website. Of the services on this list, Fax.Plus and RingCentral offer dedicated mobile apps, which we prefer. With a mobile faxing app, you can just take a picture of a document and send it on its way. Dropbox Fax’s, FaxZero’s, and SRFax’s websites are usable via mobile browsers, however. You can also send faxes via email with every service on this list.
Fax.Plus’s dedicated mobile apps work extremely well (Credit: Fax.Plus/PCMag)
How Can You Receive a Fax to Your Email (and Vice Versa)?
In practical terms, fax services convert faxes you receive into email attachments and, conversely, turn email fields and attachments into their fax equivalents. As you can send and receive email from anywhere, this approach makes a fax service more universally available.
Recommended by Our Editors
The process of sending a fax via email is fairly straightforward and largely consistent across different services. 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 the message’s origin.
How to Choose a Fax Number
Most services allow you to select an area code and either assign you an available phone number for receiving and sending faxes or provide you with a list of available numbers to choose from. Most also let you port over an existing fax number if you have one, although they might require a more expensive plan for this feature.
If you don’t want people to have to pay to fax you, consider getting a toll-free fax number, which is usually included with a paid plan. Fax.Plus and RingCentral also offer vanity (custom) numbers.
Alternatives to Fax Services
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 in-house faxing.
However, faxing isn’t the only way to deliver documents, so be sure to explore the various secure methods for sending encrypted emails, files, and private messages.
