# 11 Best Encrypted Cloud Storage Solutions in 2026 In this article - [Top Secure Cloud Storage Services At a Glance](#top-secure-cloud-storage-services-at-a-glance) - [What is Encrypted Cloud Storage and Why Is It Important?](#what-is-encrypted-cloud-storage-and-why-is-it-important?) - [Why Does Zero-knowledge Encryption Matter?](#why-does-zero-knowledge-encryption-matter?) - [11 Best Encrypted Cloud Storage Services in 2026 Ranked](#11-best-encrypted-cloud-storage-services-in-2026-ranked) - [Which Is the Most Secure Cloud Storage for You?](#which-is-the-most-secure-cloud-storage-for-you?) In this article- [Top Secure Cloud Storage Services At a Glance](#top-secure-cloud-storage-services-at-a-glance) - [What is Encrypted Cloud Storage and Why Is It Important?](#what-is-encrypted-cloud-storage-and-why-is-it-important?) - [Why Does Zero-knowledge Encryption Matter?](#why-does-zero-knowledge-encryption-matter?) - [11 Best Encrypted Cloud Storage Services in 2026 Ranked](#11-best-encrypted-cloud-storage-services-in-2026-ranked) - [Which Is the Most Secure Cloud Storage for You?](#which-is-the-most-secure-cloud-storage-for-you?) [Blog](/blog/)/11 Best Encrypted Cloud Storage Solutions in 2026 Cloud Storage # Best Encrypted Cloud Storage in 2026: 11 Secure Services Compared July 7, 202612 min readWhether you are a student backing uplecture notes, creators storing videos or businesses handling sensitive client data, an encrypted cloud storage is non-negotiable. You wouldn't want anyone else eyeing your personal files, let alone accessing them. Despite numerous services out there, many cloud storage providers fail to offer true end-to-end encryption. The "best" cloud provider depends on your use case but some have outperformed the rest in terms of security, features and file privacy. For instance, popular services like OneDrive, Google Drive and Dropbox do not offer true zero knowledge security for certain plans. This means they can technically access your data under various circumstances. In this guide, we have ranked the top 11 cloud storage services that are committed to providing secure solutions. We have explained the importance of [client side encryption](/client-side-encryption/) and a [zero knowledge security architecture](/zero-knowledge-encryption/). ## Top Secure Cloud Storage Services At a Glance Before we dive into the details and rankings, take a look at the best encrypted cloud storage services in 2026 at a glance. FeaturesDragBinProton DriveInternxtSyncTresoritFilenpCloudIcedriveDrimeBoxMEGAFree Storage25 GB5 GB1 GB5 GB3 GB10 GB10 GB10 GB20 GB10 GB20 GBClient-side EncryptionYesYesYesYesYesYesPaid OnlyPaid OnlyNoNoYesZero-Knowledge ArchitectureYesYesYesYesYesYesPaid OnlyPaid OnlyNoNoYesPost-Quantum SecurityYes (Kyber)NoYes (Kyber)NoNoNoNoNoNoNoNoMetadata ProtectionYesYesYesYesYesYesNoNoNoNoPartial #### DragBin Free Storage25 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityYes (Kyber)Metadata ProtectionYes #### Proton Drive Free Storage5 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityNoMetadata ProtectionYes #### Internxt Free Storage1 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityYes (Kyber)Metadata ProtectionYes #### Sync Free Storage5 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityNoMetadata ProtectionYes #### Tresorit Free Storage3 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityNoMetadata ProtectionYes #### Filen Free Storage10 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityNoMetadata ProtectionYes #### pCloud Free Storage10 GBClient-side EncryptionPaid OnlyZero-Knowledge ArchitecturePaid OnlyPost-Quantum SecurityNoMetadata ProtectionNo #### Icedrive Free Storage10 GBClient-side EncryptionPaid OnlyZero-Knowledge ArchitecturePaid OnlyPost-Quantum SecurityNoMetadata ProtectionNo #### Drime Free Storage20 GBClient-side EncryptionNoZero-Knowledge ArchitectureNoPost-Quantum SecurityNoMetadata ProtectionNo #### Box Free Storage10 GBClient-side EncryptionNoZero-Knowledge ArchitectureNoPost-Quantum SecurityNoMetadata ProtectionNo #### MEGA Free Storage20 GBClient-side EncryptionYesZero-Knowledge ArchitectureYesPost-Quantum SecurityNoMetadata ProtectionPartial ## What is Encrypted Cloud Storage and Why Is It Important? In simple terms, an encrypted cloud storage secures your files by converting them into unreadable data before they are uploaded to the cloud. However, this does not mean all encrypted cloud storage services work the same way. Platforms that use client-side encryption ensure that your data is encrypted on your local device before being uploaded to the cloud. Therefore, only you hold the decryption keys and nobody else, including the cloud storage provider can access your files. In case of any data breach, your files will remain completely unreadable since the attackers do not have your decryption key. Platforms like [Google Drive](/blog/does-google-drive-scan-your-files/) are encrypted but they use server side encryption, holding the decryption keys and can scan your files. Similarly, [Dropbox](/blog/is-dropbox-secure/) is encrypted but does not offer end-to-end encryption for the basic and professional tiers and can technically access your files. Thus, if you want complete file privacy, choose a cloud storage that offers client side, [end-to-end encryption](/blog/end-to-end-encryption/) or a zero knowledge security architecture. ## Why Does Zero-knowledge Encryption Matter? A zero knowledge security architecture does not depend on trust, it is secure by design since nobody can access your data. You are the sole owner of decryption keys and metadata protection ensures that only you can see your files, folders, passwords or filenames. As discussed earlier, some platforms may be encrypted but often fail to provide zero knowledge encryption. Since the cloud storage provider has "zero knowledge" of your files, this security architecture offers several benefits like :- Maximum privacy since your files are accessible only to you and you alone - Protection against a data breach because only you hold the keys - Reduce any insider risk because the employees cannot see your data - You have complete control and can share it securely This is extremely important for both sensitive files and personal memories since it offers the highest level of privacy. ## 11 Best Encrypted Cloud Storage Services in 2026 Ranked ### 1. DragBin **Free Storage** : 25GB **Security and Privacy** : DragBin uses ML-KEM (Kyber) [post-quantum](/post-quantum-encryption/) + AES-256 client-side encryption with a full zero knowledge security architecture. Data is transferred over TLS 1.3 and protected with additional measures like Argon2 key derivation. Nobody can see your files, not even DragBin or it's employees. Only you hold the decryption keys and quantum resistant encryption protects you from "[Harvest Now, Decrypt Later](/harvest-now-decrypt-later/)" attacks plus future powerful quantum computers. **Key Features** : Advanced sharing controls, Integrated global CDN, multi cloud integration, smart search, detailed analytics, version history, no artificial restrictions, etc. As one of the best encrypted cloud storage services in 2026, DragBin offers unlimited sharing, unlimited bandwidth and unlimited file size uploads. With dedicated plans like DragBin for Creators and DragBin for Business, you can go beyond storage and use workflow tools. Built to protect your data against all threats, you get both convenience and security. **Best For** : Privacy conscious users who want zero knowledge encryption and post quantum end-to-end encrypted cloud storage for complete security. ### 2. Proton Drive **Free Storage** : 5GB **Security and Privacy** : Proton Drive uses AES-256 (with OpenPGP) end-to-end and client side encryption. This is combined with elliptic curve cryptography (Curve25519) and they are ISO 27001 certified and SOC 2 Type II attested. You get a zero knowledge security architecture with strong Swiss privacy laws. However, Proton Drive is not quantum resistant and your files may be vulnerable to HNDL attacks. **Key Features** : Offline access in mobile app, secure link sharing, easy sync, seamless integration, cross platform availability, etc. Proton Drive is another great option if you are looking for secure cloud providers, offering zero knowledge encryption. Proton Docs and Proton Sheets are built in tools, allowing you to enhance your productivity. Their automatic backup and sync are up to the mark and you can read more about them in our [Proton Drive review](/reviews/proton-drive-review-2026/). **Best For** : Users who are looking to de-Google and switch to secure alternatives for storing their files. ### 3. Internxt **Free Storage** : 1GB **Security and Privacy** : Internxt uses Kyber-512 post-quantum + AES-256 client-side zero-knowledge encryption before upload, with files fragmented and encrypted at rest. They hold a number of certifications including ISO 27001:2022 certified and SOC 2 compliant. In terms of file privacy, Internxt cannot access your files under any circumstances and only you hold the decryption keys. They are quantum resistant and rank among the best encrypted cloud storage services in 2026. **Key Features** : Seamless backup, cross platform availability, Internxt Photos, [secure file sharing](/features/secure-file-sharing/), VPN, antivirus, etc. Internxt is a famous private cloud storage, standing out with its lifetime plans and strong privacy ecosystem. If you are looking to drift away from "Big Tech", this might be a suitable option. While there are some limitations like file size limits, expensive pricing, no dedicated plan for creators, it is a secure choice. **Best For** : Privacy-first users who want a secure, private ecosystem instead of relying on traditional platforms. ### 4. Sync **Free Storage** : 5GB **Security and Privacy** : Sync uses AES-256 end-to-end client-side encryption before upload with zero-knowledge architecture. The data is transferred over TLS/SSL and they are zero knowledge by design. The platform is compliant with HIPAA, GDPR among others with Canadian data centers and SOC 2/3 reporting. There is no post quantum encryption but a strong emphasis is put on file privacy. **Key Features** : Version history, secure file collaboration, real time file sync, cross platform access, automatic backup, etc. Sync stands out with its core privacy features and zero knowledge encryption among traditional cloud storage providers. Despite the platform not being open source, it is trusted by numerous people. Some other user grievances include expensive business plans but the platform impresses with 365 day day file retention and legacy. **Best For** : Businesses who can afford per user pricing in the long run or individuals looking for top notch security in their cloud storage. ### 5. Tresorit **Free Storage** : 3GB **Security and Privacy** : Tresorit uses AES-256 end-to-end client-side encryption with zero-knowledge architecture before upload. The data is transferred securely with TLS and the platform is ISO compliant among others. The platform is zero knowledge by design but as of now, post quantum encryption is only on their tasklist. They cannot access your files and only you hold the decryption keys. **Key Features** : Secure file sharing, e-signatures, virtual drive, automatic sync, Outlook integration, etc. Tresorit has been in the industry since 2011 and is HIPAA capable, GDPR aligned with strong Swiss privacy laws. If you are seeking a cloud storage for business that is privacy oriented, this platform is a great option. In terms of individual users, some criticize it for limiting the free plan to two connected devices and for being closed source. **Best For** : Businesses who want military grade security to store and manage their sensitive documents and confidential information. ### 6. Filen **Free Storage** : 10GB **Security and Privacy** : Filen uses AES-256 client-side end-to-end encryption before upload with zero-knowledge architecture. Their client applications are open source and they can never access your files or decryption keys. **Key Features** : Custom sync modes, network drive mounting, secure file sharing, private chats, offline file access for mobile application, etc. As a Germany based cloud storage, Filen revolves heavily around security and privacy. Their free tier is quite generous compared to other providers and they also offer lifetime plans to reduce cost. If you are someone that wants to go beyond storage, their chats and notes are a great inclusion. **Best For** : Individuals looking for secure [cloud storage for photos](/features/cloud-storage-for-photos/), videos, documents, and other personal files. ### 7. pCloud **Free Storage** : 10GB **Security and Privacy** : pCloud uses AES-256 client-side encryption (via optional Crypto Folder) with zero-knowledge for selected files/folders. Free users do not get zero knowledge security since it is only available to paid users as an add on. While pCloud is relatively secure, the free users are vulnerable since the provider has access to their data. There is no post quantum encryption and zero knowledge is not full by default. **Key Features** : Virtual drive, file versioning, pCloud rewind, automatic backup, seamless sync, built in audio and video players, etc. pCloud may not be the best option for free users since they are left vulnerable with no zero knowledge encryption. The platform does offer smart features like pCloud rewind, allowing you to restore files to a previous point in time. Apart from this, the media streaming, collaboration and performance are impressive. **Best For** : Paid users who purchase the pCloud Crypto add-on for zero-knowledge encryption to protect their files. ### 8. Icedrive **Free Storage** : 10 GB **Security and Privacy** : Icedrive uses Twofish client-side encryption for paid users but free users are not covered under it. The data is protected in encrypted folders, however, no post quantum encryption is offered. **Key Features** : Virtual drive, media player, advanced sharing controls, lifetime plans, etc. Similar to pCloud, Icedrive does not extend its zero knowledge security architecture to free users. The platform defends its decision to use Twofish instead of AES-256, however, this is widely debated. The lifetime plan is relatively cheaper compared to other platforms and the features are good enough. **Best For** : Budget focused users who want lifetime plans with zero knowledge encryption. ### 9. Drime **Free Storage** : 20GB **Security and Privacy** : Drime uses AES-256 server-side encryption and offers an encrypted vault for private files. However, they have admitted that the security is not zero knowledge in nature. **Key Features** : Integrated e-signatures, document editing, media player, image editor, etc. Ideal for small teams and individuals, Drime offers a generous free tier and server side encryption for its users. The platform includes various collaboration tools for teams to comment, edit and share files. Moreover, secure link sharing features include password protected links, access management among others that enhance its appeal. **Best For** : Small teams and individuals who want an encrypted cloud storage and can settle without zero knowledge encryption. ### 10. Box **Free Storage** : 10 GB **Security and Privacy** : Box uses AES-256 encryption at rest with TLS in transit, while holding the encryption keys. The platform is not zero knowledge in nature and Box KeySafe, where the keys are private, is only offered to Enterprise. **Key Features** : Box Drive, secure link sharing, admin controls, granular permissions, collaboration tools, etc. Box may be a better choice for businesses, since they get control over their own keys unlike individual users. The core features in Box are therefore inclined towards enterprises, alongside certifications like ISO 27001. If you're searching for a secure cloud storage for business, this is a top choice. **Best For** : Businesses and enterprises needing compliant, collaborative cloud storage with strong admin oversight. ### 11. MEGA **Free Storage** : 20GB **Security and Privacy** : MEGA uses AES-256 end-to-end client-side encryption with zero-knowledge architecture by default. However, they do retain some metadata on their servers such as file sizes, version order, etc. **Key Features** : fast syncing, file versioning, chat integration, secure sharing with passwords/expiry, automatic backup, etc. Last but not the least, MEGA has been in the industry for quite some time and is a reliable option. While they claim to offer zero knowledge security, the platform retains some metadata. With great transfer speeds and end-to-end encrypted backups, this is a top free encrypted cloud storage for users. **Best For** : Free users who want secure cloud storage for photos and videos to store their memories. ## Which Is the Most Secure Cloud Storage for You? Having gone through the list and important factors, you should choose a platform that offers both zero knowledge security and post quantum encryption. DragBin is a top contender with our aim of offering a secure storage solution and ensuring that only you can see your files. Our security ensures that your files are protected today, tomorrow and against future quantum computers. With DragBin, you can go a step further and get both security and convenience :- Unlimited file size limits, unlimited link sharing and unlimited bandwidth limits - Smart folder management, quick search and integrated global CDN - Preview videos in 4k/8k without downloading any software [DragBin for Creators](/creators/) and [DragBin for Businesses](/business/) take this a step further, offering advanced collaboration features and workflow tools.- Secure virtual data rooms, admin management and granular access logs - Video review and approval with comments, timestamps and feedback - Multi layer disaster recovery and version history to prevent ransomware threats. [Switch to DragBin](https://app.dragbin.com/signup) Share this article Share on FacebookShare on TwitterShare on LinkedInShare via EmailCopy link secure by design ## Experience end-to-end encryption with DragBin Protect your sensitive files with zero-knowledge, post-quantum encryption. Try DragBin and truly own your data. [Start free](https://app.dragbin.com/signup) Newsletter ## Stay updated on security trends The latest privacy and security insights, delivered to your inbox. Subscribe Keep reading ## Related articles [June 28, 2026-10 min read ### Is Cloud Storage Safe in 2026? Everything You Need to Know Is cloud storage safe in 2026? Learn about cloud storage security, risks, end-to-end encrypted cloud storage, secure solutions and how to protect your files. Read article](/blog/is-cloud-storage-safe/)[February 28, 2025-12 min read ### Zero-Knowledge Architecture: The Future of Cloud Security and True Data Ownership Discover what Zero-Knowledge Architecture means for cloud security. Learn how this revolutionary model protects your data from breaches and surveillance, and how dragbin gives you true ownership of your files with client-side, zero-knowledge encryption. Read article](/blog/zero-knowledge-architecture/)[March 12, 2025-14 min read ### The Quantum Countdown: How Quantum Computers Threaten Your Encrypted Data (2025 Guide) Comprehensive guide to quantum risk: how Shor and Grover impact today's RSA/ECC & AES, harvest-now decrypt-later urgency, NIST PQC standards (ML-KEM, ML-DSA, SPHINCS+, HQC) and what quantum-ready file storage must implement (hybrid, forward secrecy, crypto-agility). Read article](/blog/quantum-computing-threats/) --- Canonical: https://www.dragbin.com/blog/best-encrypted-cloud-storage