January 21, 2019 | Matt Gerchow When email won't do the trick, sending a fax online is a paperless, inexpensive, and convenient option for sending documents from one place to another. Unlike the fax machines of yesteryear that need a landline, online faxing only requires internet access and a transmission service. Also known as e-faxing, there is a wide range of services worth considering that allow you to send or receive a fax online. Here we highlight a handful of some of the best and worst online fax services of 2021.Sending and Receiving a Fax OnlineSending a fax online is a relatively simple process, particularly if you are familiar with traditional faxing and email. It's convenient because you can send your documents directly from your computer or mobile phone, and it's cost-effective because it cuts out the clunky fax machine that takes up space and wastes ink and paper.Why Online Faxing?Online fax services give you the benefit of having faxed documents transmitted directly into your email Inbox in a PDF or TIFF format. Your online fax number can receive multiple faxes at the same time without interruption because they get stored in your email for easy record keeping. You also have the benefit of scheduling faxes to get sent at a later date. It's an all-around streamlined process for sending and receiving faxes that's encrypted for privacy.MetroFax ReviewThis online fax service has been around since 1997. Metrofax lets you fax online using your web browser, email, or mobile device. With Metrofax the setup is free, and it gives you the choice of establishing a toll-free number or converting your existing number to your fax service. Their multi-user interfaces allows you to add up to five email addresses per account.PriceTo fax online using Metrofax it will require a monthly subscription for as little as a $6.95 annual plan. However, you can easily test out the product with its free 30-day trial offer. Within a month's time, you will have the benefit of sending or receiving up to 500 pages. Anything over that will cost three cents per page. There's no penalty for early cancellation, so your month-to-month plan can start and end at your discretion.Ease of UseMetrofax is easy to use since it works through a mobile app and allows Cloud storage. This setup makes it easy for you to send from your mobile phone or a desktop computer.ProsAffordable monthly subscriptionAble to accessStart and stop your subscription anytime without restrictionsEasy to useGreat support teamConsNo vanity numbersUnable to change your cover sheetInterface is outdatedDoes not allow a digital signatureNextiva vFAX ReviewThis company works with businesses of all sizes to let them fax online documents without a hitch. It offers three strategic pricing levels and gives you the option of signing up for a monthly or annual service plan. Some features included with its fax service include various conferencing capabilities, voicemail to email capabilities, and an auto attendant. The Nextiva vFax offers flexibility for one of the lowest prices out there for online faxing services.PriceThis online fax service is available for a monthly subscription of $8.95. Within a month's time, you will have the benefit of sending or receiving up to 500 pages, and anything over that will cost three cents per page.Ease of UseNot only is an account with Nextiva easy to set up, but with in-house customer service operating around the clock, any glitches or questions can be quickly and easily addressed. Plus, you have access to their Nextiva mobile app.ProsAffordableVariety of plansWide range of featuresHas a product for all business sizesYou can convert your existing phone number to a fax numberConsThey have a mobile app, but it doesn't support faxingSome find the web interface confusingTransmission reliability issuesFaxed document is separate from emailRelies on Flash which is outdated and blocked from many usersHelloFax ReviewHelloFax provides a free setup and allows you to convert your existing number into a fax number.PriceYou can fax online documents via HelloFax for a monthly subscription of $9.99. This lets you send or receive up to 300 pages, and anything over that amount will incur a charge of five cents per page.Ease of UseHelloFax is only easy to use and most users are pleased with the functionality of the modern interface.ProsWorks well with digital formsAllows digital signaturesCloud storage accessHas convenient options such as a free service for one time usersConsUnable to change or customize the cover pageLow page to price valueWorks with mobile apps, but none dedicatedMyFax ReviewMyFax offers flexibility at an affordable price. It offers the free setup of your fax number, and the fees include access to international numbers beyond Canada and the United Kingdom. This service is also compatible with toll-free numbers, plus it allows you to convert your existing number into a fax number. MyFax also works with mobile apps.PriceYou can fax online documents via MyFax for a monthly subscription of $10. This lets you send up to 100 sent pages and receive up to 200 pages, and anything over that amount will incur and an overage charge of 10 cents per page.Ease of UseIt is easy to set up and use this online fax service.ProsOffers great accessibility and many featuresNo contractFax from anywhereMulti-user accessFax archive or storageAble to fax to 50 different recipients at onceSend faxes from 5 different email addressesDedicated mobile appConsInterface needs updatingUnable to perform digital signaturesSend2Fax ReviewThis provider offers the free setup of your fax number, and it's compatible with toll-free numbers. Plus, it allows you to convert your existing number to a fax number.PriceYou can fax online documents via eFax for a monthly subscription of $11.99. This lets you send or receive up to 300 pages, and anything over that amount will incur and an overage charge of 12 cents per page.Ease of UseSend2Fax is a time saver. It's compatible with Microsoft Office, making it easy to get started and use.ProsOffers a free trialNo setup feeGet a toll-free number at no extra costConsNo mobile appsNo international numbers includedOutdated interfaceMonthly fee and restrictions make it expensive as compared to similar productsExpensive overage feeBiscom 1-2-3 ReviewThis company offers online fax services in two pricing tiers that are designed for individuals and small groups. It works great with mobile apps.PriceYou can fax online documents via Biscom 1-2-3 for a monthly subscription of $14.99. This lets you send and receive up to 300 pages, and anything over that amount will incur and an overage charge of seven cents per page.Ease of UseThis online service is free to set up and easy to use. It's basically as simple as sending an attachment with an email.ProsMulti-user access (up to five users)Email to fax capabilityMobile appsConsExpensiveNo choice of fax numbersUnable to send to international numbersUnable to customize cover sheetLimited featuresRingCentral Fax ReviewRingCentral offers online fax services for small businesses up to large enterprises. It offers the free setup of your fax number, and this service is also compatible with toll-free numbers, plus it lets you convert your existing number into a fax number. RingCentral Fax also works with mobile apps.PriceYou can fax online documents via RingCentral Fax for a monthly subscription of $14.99. This lets you sent or receive up to 750 pages.Ease of UseRingCentral works best for users who fax a lot. It offers the flexibility and functionality to accommodate large transmission loads, and its customer support team is available and ready to assist whenever it's needed.ProsTransmission flexibilityFocus on secure transmissionsAdvance fax schedulingMobile and desktop app featuresVisual voicemailVoicemail to emailAllows vanity numbersConsExpensiveFax to website relationship isn't dedicatedSome users complain of poor fax qualityOthers mention transmission reliability issueseFax ReviewEfax offers three pricing tiers for Plus, Pro, and Corporate customers. Each price tier offers more access to transmission pages and features, but they all include a $10 setup fee. It can transmit faxes to multiple recipients with the touch of a button.PriceYou can fax online documents via eFax for a monthly subscription of $16.95. This allows you to send 150 and receive 150 pages, and anything over that will incur and an overage charge of 10 cents per page. This is the only service we've highlighted that does not provide a free setup.ProsTwo free months with an annual planUnlimited document storageAbility to edit and sign faxesFree local and toll-free numbersSearchable fax capabilityConsExpensiveA $10 setup feeTheir desktop app is outdatedUnable to change or personalize the cover pageConclusionWhen you need to send a fax online, the differences in price, ease of use, accessibility, and user interface capabilities will help you choose the best option for you and your purposes, but our vote for the top 2021 online fax service goes to HelloFax.Matt GerchowMatt Gerchow is an author, marketer, inventor, husband, father and yoga enthusiast. He enjoys travel to distant lands , fine wine, time with his family and dinner with friends.