
Top pick
Dropbox Fax is the best option for anyone who needs to send a fax for free or for a low, one-time fee.
It’s the best service we found that offers free faxing. With Dropbox Fax, you can securely send up to five pages for free just by signing up.
Additional pages are affordable and don’t require a subscription. If you go over the maximum of 25 total free pages, you can send faxes for a flat 99¢ for the first 10 pages and 20¢ per page after that.
And your account offers you convenient features, such as a quick method for faxing to previously entered fax numbers, if you have to send a fax more than once in your lifetime.
If you want to receive faxes, subscription pricing is reasonable. Dropbox Fax’s most affordable subscription plan, called Home Office, costs $10 a month and gives you 300 pages to send and receive every month; if you go over, it’s an additional 5¢ per page.
In addition to giving you the ability to receive faxes, a paid plan gives you access to more-advanced features, such as extra account users (up to four more), the option to send faxes by email, and multi-recipient faxing.

It has a simple, easy-to-navigate interface. Sending a fax is simple in Dropbox Fax’s clean, straightforward interface. You can drag and drop PDFs, image files, text files, HTML files, and Microsoft Office files, or you can upload a file from Dropbox, Box, Evernote, Google Docs, Google Drive, or OneDrive.
Cover-page options are minimal—you can edit only the to, from, and message fields in one basic design. But unlike with some other fax services, such as FaxZero, this service’s cover page includes the number of pages sent, so the recipient will know whether everything came through.
Its fax quality is above average. In all of our tests, the faxes we sent with Dropbox Fax were crisp, with excellent contrast, regardless of the file type. Even small, 6-point text was easy to read. Overall, the quality was better than that of all the other services we tested, except for Documo.

You can sign faxes digitally. One standout feature that Dropbox Fax offers for both free faxing and paid plans is integrated fax signing. This isn’t surprising, since Dropbox Fax is on the same platform as Dropbox Sign, but it’s a convenience that other fax services don’t provide.
If you upload a PDF to fax, you can easily add a digital signature, which is often required for business transactions or for signing agreements like loan documents.
Flaws but not dealbreakers
- All 15 faxes that we sent or received with Dropbox Fax went through smoothly, but they took a minute or two longer to transmit than with some of the other fax services.
- If you run into a problem with Dropbox Fax, its customer service might frustrate you. Dropbox Fax does not offer live customer support, and the two times we filled in a support request via the online form, it was days (in one case, as long as a week) before someone emailed us back.
- While Dropbox Fax’s interface is easy to use on a computer, it doesn’t use responsive web design, so faxing from a phone browser is clunky. No mobile app exists, either.
- Although Dropbox Fax does have some security features (such as two-factor authentication via Google Authenticator, or via SMS if you upgrade to a Business plan), and even though the company assured us that it encrypts customer data in transit and in storage, there’s no setting to automatically delete faxes or to avoid storing them in the first place.
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Top pick
Dropbox Fax is the best option for anyone who needs to send a fax for free or for a low, one-time fee.
It’s the best service we found that offers free faxing. With Dropbox Fax, you can securely send up to five pages for free just by signing up.
Additional pages are affordable and don’t require a subscription. If you go over the maximum of 25 total free pages, you can send faxes for a flat 99¢ for the first 10 pages and 20¢ per page after that.
And your account offers you convenient features, such as a quick method for faxing to previously entered fax numbers, if you have to send a fax more than once in your lifetime.
If you want to receive faxes, subscription pricing is reasonable. Dropbox Fax’s most affordable subscription plan, called Home Office, costs $10 a month and gives you 300 pages to send and receive every month; if you go over, it’s an additional 5¢ per page.
In addition to giving you the ability to receive faxes, a paid plan gives you access to more-advanced features, such as extra account users (up to four more), the option to send faxes by email, and multi-recipient faxing.

It has a simple, easy-to-navigate interface. Sending a fax is simple in Dropbox Fax’s clean, straightforward interface. You can drag and drop PDFs, image files, text files, HTML files, and Microsoft Office files, or you can upload a file from Dropbox, Box, Evernote, Google Docs, Google Drive, or OneDrive.
Cover-page options are minimal—you can edit only the to, from, and message fields in one basic design. But unlike with some other fax services, such as FaxZero, this service’s cover page includes the number of pages sent, so the recipient will know whether everything came through.
Its fax quality is above average. In all of our tests, the faxes we sent with Dropbox Fax were crisp, with excellent contrast, regardless of the file type. Even small, 6-point text was easy to read. Overall, the quality was better than that of all the other services we tested, except for Documo.

You can sign faxes digitally. One standout feature that Dropbox Fax offers for both free faxing and paid plans is integrated fax signing. This isn’t surprising, since Dropbox Fax is on the same platform as Dropbox Sign, but it’s a convenience that other fax services don’t provide.
If you upload a PDF to fax, you can easily add a digital signature, which is often required for business transactions or for signing agreements like loan documents.
Flaws but not dealbreakers
- All 15 faxes that we sent or received with Dropbox Fax went through smoothly, but they took a minute or two longer to transmit than with some of the other fax services.
- If you run into a problem with Dropbox Fax, its customer service might frustrate you. Dropbox Fax does not offer live customer support, and the two times we filled in a support request via the online form, it was days (in one case, as long as a week) before someone emailed us back.
- While Dropbox Fax’s interface is easy to use on a computer, it doesn’t use responsive web design, so faxing from a phone browser is clunky. No mobile app exists, either.
- Although Dropbox Fax does have some security features (such as two-factor authentication via Google Authenticator, or via SMS if you upgrade to a Business plan), and even though the company assured us that it encrypts customer data in transit and in storage, there’s no setting to automatically delete faxes or to avoid storing them in the first place.
The 2 Best Online Fax Services for 2025
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