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    eFax Corporate

    World's leading DIGITAL CLOUD FAX as a service. Fax by email, web portal, API integration or mobile app.

    Ratings and reviews

    4.5
    215 ratings
    1 AWS reviews
    |
    214 external reviews
    External reviews are from G2  and PeerSpot .

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    Reviews (215)
    Cheryl T.

    Simple, Economical, and HIPAA-Compliant

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    I like using eFax Online Fax Service because it is easy, convenient, and economical. The HIPAA compliance is crucial for my massage therapy business where I handle referrals, medical records, and prescriptions. I appreciate that it's online, allowing me to view, print, and store my faxes easily. The service is simple and straightforward, which is something I value since I dislike complicated user interfaces. The price is good, making it an economical choice. I've had no complaints and have already recommended it to others.
    What do you dislike about the product?
    There isnʻt anything I dislike about eFax Online Fax Service.
    What problems is the product solving and how is that benefiting you?
    I use eFax Online Fax Service because it's HIPAA compliant, letting me securely receive referrals, medical records, and prescriptions. It's online, making it easy to access and store faxes. It's also economical and simple to use, meeting my business needs effectively.
    Anonymous

    Essential Fax Solution with Proven Delivery

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    I like using eFax Online Fax Service because it solves the problem of some agencies still needing documents faxed when no one has traditional faxes anymore. It's nice that we always have a record of what has been sent out and that it was received. If someone says they did not receive it, we have proof of it being sent. It's a great tool for us, especially since many tax agencies lose paperwork. The ability to prove that documents were sent and sent on time eliminates issues for us. It's also very easy to use, with no initial setup issues, and it works great without any complaints. I also appreciate that we can use it on our phones.
    What do you dislike about the product?
    We really have no complaints.
    What problems is the product solving and how is that benefiting you?
    I use eFax Online Fax Service because some agencies still require documents to be faxed. It provides an easy solution, ensures we have records of sent documents, and helps avoid penalties by proving timely submission.
    Caron L.

    Effortless, Highly Recommended Faxing Service

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    I use eFax Online Fax Service for sending faxes to other carriers. It's easy to use and doesn't take up a lot of my time setting it up. I find it easy to understand, and I really like the way it works. I would rate it a 10 and recommend it to anyone.
    What do you dislike about the product?
    nothing
    What problems is the product solving and how is that benefiting you?
    eFax Online Fax Service is easy to use and doesn't take much time to set up, making sending faxes simple and efficient.
    Anonymous

    Reliable Online Fax with Room for Improvement

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    I like that it has a decent web portal and everything can be done online. It works reliably, and I can send fax via the portal, which is great. The initial setup was easy and fast.
    What do you dislike about the product?
    I was not able to send large files via the "File Share" - it doesn't seem to work.
    What problems is the product solving and how is that benefiting you?
    I use eFax Online Fax Service to send fax messages conveniently when needed. It has a decent web portal, reliable online functionality, and allows me to reach addressees easily.
    Legal Services

    Easy, Affordable Faxing Right From Your Computer

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    Old fax machines are so hit or miss, this service is so easy to use and it is all right on your computer, where you were doing the work anyway. It's very affordable. I have never had a fax fail like I would on an old school fax machine. It's just great!
    What do you dislike about the product?
    I have not found a single thing that I dislike about this service.
    What problems is the product solving and how is that benefiting you?
    I have found that some companies are using upgraded technology and it was causing some of my faxes to not be sent at all. This is not happening with this service!
    Consulting

    Easy-to-Use, Affordable eFax with Clear Email Confirmations

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    eFax is very easy to use. It’s always clear when I’ve received a fax and when I’ve sent one, and I also get email confirmation for both, which is great. Having the option to log in through the browser, along with receiving faxes and those confirmations via email, makes the whole process much more effective and straightforward. It is a great service for the price which is very reasonable and affordable. I truly believe it is one of the best programs I have used. eFax is one of the best tools/programs available. It's easy to use and very efficient.
    What do you dislike about the product?
    There is nothing that I dislike about eFax. It is great.
    What problems is the product solving and how is that benefiting you?
    I can easily send and receive faxes without having to add an additional phone line or leave my house. I can easily do it straight from my computer even when I travel.
    Anonymous

    Effortless, Secure Faxing on the Go

    Reviewed on Aug 21, 2026
    Review provided by G2
    What do you like best about the product?
    I appreciate that eFax Online Fax Service lets me receive faxes without needing a physical fax machine or office. I love its simplicity, and the fact that I can access everything from my phone without needing my laptop is a huge plus. I also like that it's HIPAA compliant, giving me peace of mind when dealing with sensitive information. The initial setup was simple and quick, which was great.
    What do you dislike about the product?
    N/A
    What problems is the product solving and how is that benefiting you?
    eFax Online Fax Service lets me receive faxes without a physical fax machine or office. I love its simplicity and that I can handle everything from my phone, which is HIPAA compliant, so I don't need my laptop.
    Accounting

    Easy Integrations and Clear UI, but Slow Performance and High Fax-Only Pricing

    Reviewed on Aug 20, 2026
    Review provided by G2
    What do you like best about the product?
    I like the understandability of the UI and ease of integrations. Performance is a bit slow but gets the job done. I'm not sure about the pricing, it's quite high for a product that only provides "fax". I've never used the support feature because I don't like AI.
    What do you dislike about the product?
    Very slow at times, and there's no need to have AI integrated. I don't like AI.
    What problems is the product solving and how is that benefiting you?
    Fax is easier to use online.
    Civic & Social Organization

    Easy-to-Use Email-to-Fax Without Needing a Machine

    Reviewed on Aug 20, 2026
    Review provided by G2
    What do you like best about the product?
    easy to use, no machine, can email to fax
    What do you dislike about the product?
    long wait times, hard to see sent message folder
    What problems is the product solving and how is that benefiting you?
    lack of fax machine, lack of time to go somewhere to use one
    Anonymous

    eFax: Reliable and Easy Solution for Healthcare Communication

    Reviewed on Jul 28, 2026
    Review provided by G2
    What do you like best about the product?
    I use eFax Online Fax Service to communicate with different health care providers, which is extremely helpful as a therapist. eFax solves the communication problem compared to traditional fax machines because it's very efficient, letting me know clearly if the fax is sent without any wondering. I like the reliability because it's convenient, sending notifications to my eFax account and email for incoming faxes. Compared to a traditional fax machine, eFax's reliability is 10 out of 10, so I'm confident the fax has gone through. The convenience of not having to check if a fax was sent saves me time, as I know every fax went through when eFax confirms it. The value is wonderful at $20 a month, guaranteeing sent faxes are received and I get notified in two ways. eFax is super easy to set up and anyone with minimal computer knowledge can create an account by signing up with an email and password. I highly recommend eFax service anytime, especially for providers struggling with sending or receiving faxes.
    What do you dislike about the product?
    There is nothing I don't love about this product!
    What problems is the product solving and how is that benefiting you?
    I use eFax Online Fax Service to ensure smooth communication with healthcare providers. It solves issues I had with traditional fax machines. It's reliable and convenient, saving me time and confirming sent faxes without needing follow-up calls.