5 Best Zero-Knowledge Cloud Storage Providers

With data breaches on the rise, many people are looking for ways to store their information securely. Cloud storage has become a popular option because it is easy to use and offers unlimited space at affordable prices, plus advanced features that you don’t find in the internal hard drive or external storage.

However, not all cloud storage providers are created equally. Some provide end-to-end encryption, while others don’t encrypt your data at all! So, which cloud storage has zero-knowledge encryption?

 In this article, we will look at 5 of the best zero-knowledge cloud storage providers out there that offer zero-knowledge privacy! But in my experience and testing, pCloud is excellent cloud storage that offers solid security and privacy policy. As it is a Swiss-based service, you can expect the most secure data centers with a complete user-friend privacy policy.

Why zero Knowledge cloud storage?

Zero-knowledge cloud storage providers are becoming more and more popular because of the increased awareness of data breaches and cyber-attacks. These providers offer a higher level of security by ensuring that your files are never stored or accessed in an unencrypted format. This means that even the provider cannot access files because they are encrypted on your device before being uploaded.

5 Best Zero-Knowledge Cloud Storage Providers

pCloud Zero-Knowledge Review

pcloud storage

 PCloud is the best Zero-Knowledge Cloud Storage Provider that offers zero-knowledge encryption. Their platform ensures your files are encrypted before they leave your device, and only you can decrypt them. This ensures your data is safe and secure from spying eyes.

Their Invite to folder collaboration feature lets you share files securely with coworkers and easily track who has access to what. PCloud is the perfect solution for businesses and individual users who need a secure and reliable way to store their data. It uses industry-standard encryption security protocols, including 4069-bit RSA and 256 bit AES.

It also provides the option to use your key to encrypt and decrypt files. And these are some of the most secure encryption settings on the market today, which means your data is more secure on pCloud than on any other cloud storage service.

Furthermore, Pcloud offers a free storage limit of up to 10GB per user so that you can store all of your essential files in one place with a free account. Furthermore, the Pcloud is available on various platforms so that you can access your files from anywhere.

Additionally, it also offers a variety of other features that make it the best and secure storage solution for businesses and individual users. So, if you’re looking for a zero-knowledge cloud storage provider, pCloud is the best option available on the market.


sync cloud storage

Sync.com is a Canadian cloud storage company headquartered in Toronto, Ontario. And it has been offering cloud storage service since 2011 and has received tons of positive reviews from users. The service provides secure online storage file sharing and online backup for small businesses, individuals, freelancers, and enterprises worldwide.

It uses zero-knowledge encryption, which means that Sync does not have access to the encrypted data and cannot decrypt it even if it is asked by law enforcement or a government agency. This data encryption feature is an excellent choice for those who want to store their most private data on online storage.

It offers unlimited storage for individuals, businesses, and teams, which is excellent for those who need to keep a lot of data online. Sync.com is also an excellent online backup solution. It can automatically back up your files to the cloud, so you don’t have to worry about losing them if your computer crashes or is stolen. And it’s easy to set up and use – you can start backing up your files in minutes.

One of the best features of Sync.com is its high-quality document previews. When you upload a file to Sync, it generates a preview of the document so you can see what it looks like before you download it.

This is an excellent feature that needs to quickly check a document’s contents before deciding whether to download it or not. And the previews are always up-to-date – they reflect any changes that have been made to the record since it was last uploaded to Sync.

Sync.com is also an excellent choice for sharing files with others. It’s much faster than email, and it allows you to share any size file without any limit – Sync.com can handle files of any size. You can also share files with others without creating an account or giving them your login information. And you can choose who has access to the file – you can share it with just a few people or make it public so that anyone can download it.

Sync.com offers three different subscription plans for users to choose from depending on their need and budget requirement: Teams Standard ($60/year), Teams Unlimited ($180/year). The company also has 5GB of free storage before you have to pay anything so that you can check out the service firsthand without any commitment.

If you’re looking for a secure cloud storage service that provides high-quality document previews, excellent privacy policy, and other storage advance features, Sync.com is worth checking out! You can sign up for a free account here. 



Tresorit is a leading zero-knowledge cloud storage provider that offers the best features for privacy, top security, and excellent control over their data. With Tresorit, you can share files without the fear of unauthorized access or leaks – even if your cloud is hacked!

Tresorit has built-in, strong encryption, and it only takes a few clicks to set up end-to-end encryption. And your files are always encrypted on their server and remain encrypted until you encrypt them.

Furthermore, it also offers the option to make shared links protected. For example, you can set up a password on the shared folder, so only authorized users can access the shared folder. This way, the files are only open by those with the key.

With Tresorit, you can also enable 2-Step Verification as an additional layer of protection. In this way, anyone who wants to access your account or files, Tresorit, will need your verification code and a second randomly generated code from the app on your smartphone.

Furthermore, Tresorit has a powerful permission control system that lets you decide who can access and download your file or folder. With the click of a button, you can allow specific people (e.g., friends and family) or groups (e.g., coworkers) to view and download your content while keeping it hidden from everyone else on the internet!  With Tresorit’s permissions controls, you’ll never have to worry about sharing sensitive information again – even if someone hacks into your account!


SpiderOak Best Zero-Knowledge Cloud Storage

SpiderOak is an excellent zero-knowledge encryption cloud storage service that can keep your data safe and secure with industry-standard security protocols. Their end-to-end encryption means that nobody but only authorized users can access hosted data, not even SpiderOak themselves.

This makes them an excellent choice for those looking for added security and peace of mind for their cloud storage needs. Since nobody at SpiderOak can access your encrypted data, they cannot tell what kind of information you’ve stored on their servers. This is a perfect security feature for users looking to keep their most confidential data.

In addition, SpiderOak is an affordable cloud storage service. This makes it an excellent choice for those looking to store large amounts of data, such as businesses and individuals who want to keep their files safe in the cloud at low prices. However, it does not support two-factor authentication that helps to make your account stay more secure.

SpiderOak also has a unique feature called the “SpiderOak Hive”, which allows you to sync data across all of your devices with ease and speed. This makes it easy for users to access their files from anywhere they like, regardless of what device they may be using.

Overall, SpiderOak is an excellent zero-knowledge encryption cloud storage service that can keep your data safe and confidential. If you’re looking for a secure way to store your files online, then be sure to check out SpiderOak!



The Egnyte Platform was built from the ground up with standard security at its core features. However, it does not offer zero-knowledge by default, but you can encrypt and decrypt your data using the Boxcryptor service.

This means that your data is securely stored on their server, and no one can access it; not even Egnyte can see it. They also offer a comprehensive set of privacy policies to help you meet your regulatory requirements, as well as robust collaboration tools that let you work the way you want.

One of the top features that make Egnyte the best cloud storage service is handling large-size data. Its automation tools make it easy for keeping backup organized and reduce the amount of storage needed. This helps you manage content sprawl, avoid compliance risks, and save money on storage.

Egnyte provides a marching learning system that automatically classifies the most sensitive information and reduces time spent on compliance. The platform also provides a better user experience for employees, partners, and customers by simplifying how they access content with features like file tagging, search & discovery tools to find files faster, document previews in email.

Egnyte is the perfect solution for businesses of all sizes, with a flexible pricing model and tiered storage options to fit any budget.

FAQs on best zero-knowledge cloud storage

What is a zero-knowledge feature in cloud storage?

Zero-knowledge encryption is a form of encryption that allows you to encrypt your data so that only you can access it. This means that even service provider staff cannot view your files, and they cannot hand over any information about them to authorities or anyone else if asked.

 Which cloud storage has zero-knowledge encryption?

A few best cloud storage services offer zero-knowledge encryption, including PCloud, Sync, SpiderOak, and Tresorit.

Does Google Drive have zero knowledge?

Google Drive does offer zero-knowledge encryption as an option for file storage. This means that the provider (in this case, Google) can’t access or read the encrypted data, and neither can anyone else who might gain access to it.

File encryption is done using a user’s Google Drive password, never stored or accessible by Google. So yes, in answer to your question, Google Drive does have zero-knowledge encryption.

Which cloud storage is best for personal use?

Sync.com is a great cloud storage option for personal use because it offers many beneficial features for individuals. These features include 5GB of free storage space, the ability to sync files and folders between devices, and military-grade encryption to keep your files safe.

In addition, Sync.com is one of the cloud storage providers among a few others that doesn’t have any file size limitations, so you can store as many files as you want without having to worry about file size while uploading an online server.

Which cloud storage is most secure?

Pcloud offers military-grade encryption with the option of the best features for storage and is also GDPR compliant.  It is one of the most secure cloud storage solutions out there.

Is Sync zero knowledge?

Sync is a cloud service that uses zero-knowledge encryption to ensure its users are completely anonymous. The encoding of information end-to-end makes it difficult for others to look at the decoded data without the correct key. This means no organization, not even Sync, can read or access hosted files.

Is Mega safe?

Yes. Mega’s zero-knowledge encryption is the strongest in the world. And also has a strict privacy policy to keep your data secure. Mega encrypts all files with an industry-standard AES algorithm., which is open for peer review and regularly audited by security firms. Mega does not store any of your decrypted data – not even temporarily.

Is Backblaze zero knowledge?

Yes. BackBlaze provides maximum data security and maximum data privacy because all of your files are encrypted with the latest technology in geo-redundant 128-bit AESbit encryption at no cost to you.

Files stay encrypted inside their redundant firewalled servers, and they never decrypt them, which means Backblaze employees can’t read customers’ private files. They designed systems so that no single point of failure can threaten the privacy of any user.

However, it strives to keep critical information confidential at crucial times by sending emails without attachments when we detect an imminent threat such as a botnet attack or other malicious activity to combat spamming or phishing attempts.

Rob Boirun

Rob Boirun

Staring in the storage industry in 1999, I worked for a DVD Burning API company that provided the burning engine for iTunes and other burning software. Today my love for all types of storage is being displayed here.

1 Comment
  1. […] 5 Best Zero-Knowledge Cloud Storage Providers that don' access or read meaning of data including 1 pCloud. 2 Sync.com. 3 Tresorit. 4 SpiderOak and 5 EGNYTE CONNECT .  […]

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