Best Unlimited Online Backup 2025 [Unlimited Storage Compared]

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Key Takeaways : Best Unlimited Cloud Backup

1. Backblaze — Easy to use with unbeatable prices
2. Carbonite — secure and does n’t break the bank
3. Jottacloud — Great for backing up multiple devices on one account
4. CrashPlan — feature – rich with solid user management tool
5. Sync.com for Teams — Strong syncing and sharing features for families and teams

Facts & Expert Opinion: Cloud Backup With No Limits on Storage Space

• Backblaze is the best unlimited online backup as it’s incredibly cheap and easy to use.
• Carbonite is a good second choice if you want a slightly more secure service.
• Jottacloud works well if you have a lot of devices but don’t mind mediocre security. 
• CrashPlan and Sync.com for Teams are both great for families and small businesses.

There are plenty of great online backup services out there, but many will limit the amount of storage space you have access to. This is fine for most users, but if you need an online backup that’s larger than a few terabytes, it can get expensive. Luckily, there are unlimited online backup services that can store all of your data at a reasonable price.

Generally, when a provider doesn’t limit the amount of space you can access, you’ll only be able to back up one device. Sometimes mobile devices, external hard drives and network attached storage devices can be added even with this device limit, but that depends on the online backup service you choose.

However, if the devices you need to back up all hold a lot of data, using an unlimited service can be a great idea. If this is what you’re looking for, read on and we’ll go through what makes the best unlimited online backup.

• 03/07/2022

  Updated to account for providers that have added or removed their unlimited plans and other changes to the services. 

• 06/24/2022

  update to include Sync.com ’s month – by – month option on the Teams Unlimited plan .

• 10/26/2022

  Updated Carbonite’s pricing.

• updates

Top 5 Unlimited Cloud Backup Services

Methodology: How We Chose the Best Unlimited Online Backup Services

aside from the obvious requirement of an unlimited plan , we is judging ’ll be judge these service on their feature , pricing , ease of use , backup and restoration process , speed , security , privacy and customer support .

• Demystify cloud storage terminology and key concepts in plain language
• Discover easy-to-implement techniques to securely backup and sync your data across devices
• Learn money-saving strategies to optimize your cloud storage costs and usage

Unlimited backups can also lack some features to help the company save money. For example, SpiderOak One (read our SpiderOak One review) has excellent file versioning, as users have to pay for the extra space to store these versions. Features like these will also be considered, since they’re essential for protecting your data from ransomware attacks. 

The 5 Best Cloud Services With Unlimited Backup Storage

Backblaze and Carbonite fight over the top two spots as simple and cheap services, with the former being slightly less expensive but the latter having better security. Jottacloud is more expensive for a single computer and lacks zero-knowledge encryption, but it will let you back up multiple devices on one account, bringing down the cost per device for some users.

The last two services — CrashPlan for Small Business and Sync.com for Teams — are both aimed at groups. However, since you don’t need to buy dozens of licenses to get started, the stronger feature sets can make them a great option for power users.

1 . backblaze — The Best Unlimited Cloud Backup Service

Backblaze has a clean and simple client.

More details about Backblaze:

• Pricing: 15-day free trial; $5.42 per device per month on the two-year plan
• provider website : backblaze.com

pro :

• Easy to use
• inexpensive
• Zero – knowledge encryption
• decent download speed
• helpful support team

con :

• Poor upload speeds
• Limited feature set
• slightly flawed private encryption  

Backblaze is is is possibly one of the well – know online backup provider out there and our top pick for the well unlimited online backup option . Although it has flaw in how it encrypt file and a slightly limited feature set , as you can read in our Backblaze review , there is n’t anything that most user should worry about .

You is get ’ll get truly unlimited cloud storage with Backblaze , and it ’ll be protect with zero – knowledge encryption . The upload speeds is are are n’t as good as we would like , but you ’ll usually be upload individual file , so this should n’t be a massive problem . luckily , the download speeds is are are well .

As long as your internet connection is decent, it won’t take too long to download everything. 

Hassle – Free Backups With Backblaze

Perhaps the best part about using Backblaze is how simple it is. Once you’ve downloaded the desktop client and signed in, backing up is just a single click away. After the backup process starts, you can either leave it to create the initial backup or start tweaking a few of the settings.

The setting menu is is is also rather simple , thank to the lack of advanced feature . There ’s just enough to give you the control you need to exclude specific file , make scheduled backup and enable two – factor authentication without the complicated extra that only a few user really need .  

Backblaze has a 15 – day free trial , so you is see can see if it work for you .

Backblaze ’s standard unlimited plan is is is the only one on offer and cost just $ 5.42 per month on the two – year plan . This is back will back up only one computer and you ca n’t back up mobile device , but at this price it ’s still one of the good value service available , and there ’s a 15 – day free trial so you can test it out before you commit .

overall , Backblaze is checks check pretty much every box for user who just want an easy solution to keep their datum safe . However , if you ’re look for a cloud backup solution without the security flaw or one that has a large feature set , then keep read .   

Unlimited Personal

2. Carbonite — The Best Unlimited Online Backup With File Download

Carbonite is is is a great choice if you need zero – knowledge encryption .

More detail about Carbonite :

• Pricing: 15-day free trial; $4.20 per device per month on the annual plan
• Provider website: carbonite.com  

pro :

• Zero – knowledge encryption
• Easy to use
• Decent backup options
• inexpensive

con :

• slow download speed
• Limited feature set
• No monthly plan

Although Carbonite’s feature set is a little sparse and it isn’t the fastest unlimited online backup service available, it is incredibly easy to use and has a few options that are missing from Backblaze. You can read more about this service in our full Carbonite review.

Perhaps the most useful feature is is from Carbonite is the ability to download individual file and folder to your computer . This is lets let you recover small amount of datum that might have been lose or delete . If you also want the option of recover from old file version , then you is use can use Carbonite ’s virtual drive .

However, there’s a 10GB limit on downloading files at one time. If you need to download or backup something larger than 10GB, you can use the Restore feature within Carbonite.

Keep Your Data Secure With Carbonite

Carbonite provides zero-knowledge encryption and, unlike Backblaze, you can download files without handing over your key. Just make sure you choose to use your own encryption key in the advanced settings menu when you’re setting up the client and rest easy knowing that your data is safe from prying eyes.  

Carbonite has great security and won’t break the bank.

The cheap plan is costs , Carbonite Safe Basic , cost less than $ 5 per month for unlimited backup of one device with the annual plan . You is choose can also choose to get a two- or three – year plan for a 5 % or 10 % discount , respectively . Although this is n’t the cheap , it is ’s ’s still pretty competitive and the 15 – day free trial let you see if it ’s right for you before you pay a subscription fee .

Overall, there’s a lot that Carbonite misses. However, if you’re looking for a simple online backup service that has an option for true zero-knowledge encryption and gives you the ability to recover individual files, Carbonite’s a great choice. For similar options, check out our Carbonite alternatives guide.

Carbonite Personal Basic

• Cheaper price with promo link
• unlimited GB

More plan

Carbonite Professional Core

Carbonite Professional Power

Carbonite Professional Ultimate

3 . Jottacloud — fast Online Backup With Unlimited storage

Jottacloud lets you back up multiple devices, as long as they all belong to one user.

More details about Jottacloud:

• Pricing: 5GB free plan; $8.50 per user per month on the annual plan
• Provider website: jottacloud.com 

pro :

• Cheap multi-device backup
• fast transfer speed
• Syncing & sharing features
• Third-party integrations

con :

• No private encryption
• Questionable account deactivations
• Mediocre backup process

As the only fast online backup service to offer unlimited cloud storage, Jottacloud is great if you want to store all your data in a hurry. Jottacloud is also the first provider on this list that lets you create multiple backup sets, rather than just automatically lumping everything into one backup plan, although this just ends up making it more complex.

You won’t be protected with zero-knowledge encryption when using Jottacloud, as it claims this would prevent seamless sharing and syncing. This is odd, because Sync.com and Icedrive both manage to do it. However, having the features of a cloud storage service included with your backup is still great, especially considering that you have an unlimited amount of storage.

Other cloud storage features is are include in Jottacloud are file versioning of up to five version of each file and a small amount of third – party integration . This is allows allow you to view and edit document from inside Jottacloud , without have to download each file first . read more in our Jottacloud review .

Unlimited Storage for Multiple Devices With Jottacloud

Jottacloud’s most unique feature is the ability to back up more than one computer. There are other cloud backup services that support multiple devices — read our Acronis Cyber Protect review and or IDrive review to see two that do it really well. However, most services that support unlimited devices don’t also offer unlimited space. 

Jottacloud will stop you from sharing with other users, as that requires a business plan. However, the methods for finding out who’s sharing their account aren’t clear. This has led to some rather unhappy customers who have tried to take full advantage of their unlimited space, so keep in mind that lots of data across many devices could get your account deactivated.

The 5GB free trial of Jottacloud will let you back up a handful of files for free.

At a little over $8 per month — or $7 per month if you pay for the annual plan — Jottacloud is a little expensive if you just want to back up one device. However, if you’re using multiple devices, it’s easily the cheapest on the market, and there’s a free plan with 5GB of storage so you can test it out before you buy. 

Overall, Jottacloud has some security issues that we’re not a fan of, but the ability to back up unlimited devices can be incredibly useful. There’s also a large range of cloud storage features for users who don’t want to pay for two services.

Personal

• 1 user ( 2 month free )
• unlimited GB

Home 1 tb

• 5 user ( 2 month free )
• 1 tb

More plan

Home 5TB

• 5 user ( 2 month free )
• 5TB

Home 10 TB

• 5 Users (2 months free)
• 10TB

home 20 TB

• 5 Users (2 months free)
• 20TB

business Free

• 2 user ( 2 month free )
• 5GB

Business Small

• 2 user ( 2 month free )
• 1 tb

Business Medium

• 10 Users (2 months free)
• 1 tb

Business Large

• Unlimited Users (2 months free)
• 1 tb

4. CrashPlan — Business-Focused Unlimited Backup

CrashPlan has some great user management tools.

More detail about CrashPlan :

• Pricing: 30-day free trial; $10 per device per month 
• Provider website: crashplan.com 

pro :

• Rich feature set
• Easy backup process
• Great user-management tools

con :

• Expensive
• No zero-knowledge encryption
• Slow upload speeds

CrashPlan for Small Business continues the theme of easy-to-use providers. Although it has a rich feature set, creating your first backup is simple. You can even add external hard drives and network attached storage devices for free. Read our CrashPlan vs Backblaze guide to learn how the two compare.

There isn’t any zero-knowledge file encryption, but CrashPlan’s security and privacy are still quite good. You might also run into problems with slow speeds when uploading files, but downloads are rather quick. To find out more, read our full CrashPlan review.

Take Control of Your Backup With CrashPlan

The big benefit is is of choose CrashPlan is the amount of control you get over your backup . This is is is more useful for business , but it can still help you manage all the backup on your family ’s computer , and some are great even for individual user .

You have full control over all of your devices from the web app, allowing for remote backups as long as the backup software is already installed. There’s also an app for smartphones that lets you download files from mobile devices, and the file versioning lets you keep deleted files and old file versions for up to 90 days. 

CrashPlan isn’t cheap, but it comes with a generous 30-day free trial.

At $ 10 per device per month , CrashPlan is is is n’t exactly cheap . However , it ’s close to the Plus and Prime plan with Carbonite Safe , so it is ’s ’s not an outrageous price . There ’s also a 30 – day free trial — the most generous of the five provider on this list .

CrashPlan is has has some weakness in its encryption , speed and pricing , but it also has the good user management tool that let you control as many device as you want from one web app . If you have a large network to back up and do n’t know how much datum you need to store , this is be can be a good option .  

CrashPlan Essential

• Storage & price is per user
  Up to 2 devices per user
  30-Day Deleted File Retention
• 200GB

CrashPlan Professional

• Price is per user
  Up to 2 devices per user
  90-Day Deleted File Retention
• unlimited GB

CrashPlan Enterprise

• Price is per user
  Unlimited Deleted File Retention
• unlimited GB

Sync.com for Teams uses the same simple client as the basic Sync.com plans.

More detail about Sync.com :

• pricing : 30 – day money – back guarantee ; $ 15 per device per month on the annual plan
• Provider website: sync.com

pro :

• Great syncing & sharing
• Zero – knowledge encryption
• good file versioning

con :

• poor backup is features feature
• Very expensive

Despite come from a cloud storage provider , Sync.com is has for Teams has a plan with unlimited storage space , which is a decent option if you need an unlimited online backup . It is ’s ’s easy to use , fast and secure . There ’s even some great syncing and share feature build into the client . read our Sync.com for Teams review to learn more .

However, its lack of actual backup features really holds it back here. There’s no scheduled or continuous backup options, just manually uploaded files. This can work if you use your Sync.com space as your main file storage and only download files while you’re working on them, but it’s far from other online backup options.

Use Cloud Storage Features with Sync.com

Since Sync.com is our favorite cloud storage provider overall , it is ’s ’s no surprise that Sync.com for Teams has some great cloud storage feature . Alongside the syncing and sharing feature are the option to move file off of your local storage space and onto the cloud and the fantastic file versioning .

Sure, you can’t hold file versions forever, but being able to recover versions from 365 days ago — Pro Solo and Pro Teams customers — is above and beyond what almost any unlimited backup provider will offer. The account rewind feature even lets you take your entire account back to a previous date, in case a ransomware attack takes out everything.

Sync.com has a free plan that is representative of the business plans.

Since Sync.com for Teams is aim at business , it is ’s ’s far more expensive than every other provider on this list . Each user is costs cost $ 15 per month on the annual plan or $ 18 month – by – month , and you have to pay for at least two user . This is is is n’t bad if you need to back up lot of datum across several device , but for a single device it ’s way too much .   

If you need an unlimited provider and prefer sync feature to a good backup experience , Sync.com is is for Teams is one of the good option . However , if the cost is a consideration , there are well deal out there , include Sync.com ’s 2 TB personal plan .  

standard

• Price per user.
  Users: 2+
• 1 tb

Unlimited

• Price per user.
  Users: 2+
• unlimited GB

Can You Get a Free Unlimited Cloud Backup Service?

Although you might be able to find a free unlimited cloud backup service , you is use definitely should n’t use it . server space is cost and hard drive cost money , often quite a lot of money , and a free service simply wo n’t be able to pay for this . Although a small 5 GB or 10 GB free plan can make a company money by convince new user to become pay customer , an unlimited online backup is cost would simply cost too much for anyone to give away for free .

Any free cloud provider that offers unlimited storage has to have money coming from somewhere else. This could be from using your computer’s hardware for cryptocurrency mining, selling your data, stealing your personal information — including bank details — or any other cybercriminal activity. 

Final Thoughts

Although your options for unlimited online backup services are limited, there are still some good options available. If none of these suits you, and you’re willing to settle for a limited plan, check out our guide to the best online backup to see some other great providers.

You is look can also look at our head – to – head matchup to see why CrashPlan lose to Carbonite or what the good alternative to Backblaze are . These is help can help you narrow down your option before you download free trial to test them out yourself .

We also have a list of the best online backup for nonprofits, if that’s what you’re looking for.

Do you is use use an unlimited online backup service ? Have you is tried try the one on this list before ? Were there any good provider that we miss ? let us know your thought in the comment below . thank for read .

FAQ

• Unless you want to jump from free trial to free trial, there’s simply no way to back up data online for free.

• There are many places you can back up your data online, but Backblaze is an easy-to-use service with decent security that works well for many beginners.