9 Best Encrypted Cloud Storage of 2026

Proton Drive is the simplest way to get zero-access encryption without thinking about it. Every plan, including the free 5 GB tier, is end-to-end encrypted, and Proton says it blocks third parties and even itself from reading stored files. Drive Plus gives 200 GB and keeps previous file versions for 10 years, which is a long recovery window for anyone storing tax records or scanned IDs. Sharing is well thought out: links can carry a password and an expiry date, and access can be revoked at any time. Proton also adds encrypted document and spreadsheet editors, so notes and budgets do not have to leave the encrypted space. Apps cover iOS, Android, Windows, macOS, the web and a command line tool. The main catches are the small free allowance and renewal pricing: the $2.49 first-year rate on Drive Plus renews at $47.88 a year. Bundles such as Proton Unlimited add Mail, VPN and Pass for buyers who want the wider suite.

Sync.com builds everything around end-to-end encryption, and its own description is that only you have access to your files. The personal range starts with 5 GB free, then Personal 1TB at $9 a month billed annually in the first year, Solo 5TB and Personal Unlimited. The standout is recovery: file history runs 90, 180 or 365 days depending on the plan, and deleted files can be restored. Sharing is more granular than most consumer services, with read-only access, expiry dates, download limits, password protection and a preview-only mode for PDFs and Office files. Remote device lockout helps if a laptop is lost. Sync lists HIPAA, GDPR and PIPEDA compliance and SOC 2 Type 1, which suits people who handle client or health records. The drawbacks are the lack of a small, cheap tier between free and 1 TB, and first-year promotional pricing that renews higher. Apps cover Windows, Mac, Linux, iOS, Android and the browser.

MEGA has offered encrypted storage for years and still has the most generous free plan in this group at 20 GB. MEGA says no data leaves a device unless it is encrypted so only the user or intended recipients can process it, and it describes its model as zero-knowledge. Paid tiers run from PRO LITE, listed at $6.49 a month on the US App Store, up to 20 TB, with Pro Flexi and Business plans starting at 3 TB. Every tier keeps 100 file versions, and Rewind can roll folders back up to 60 days on paid plans. The account also includes encrypted chat and video meetings, while paid plans add MEGA VPN and the MEGA Pass password manager. The downsides: free accounts face limited transfer quota, free Rewind is view only, and the website showed euro pricing from our location, so we quote App Store prices instead.

For Apple users, the most private cloud may be the one already on their phone. By default iCloud uses standard data protection, where Apple holds the keys for most data and only 15 categories, including Health and iCloud Keychain, are end-to-end encrypted. Turning on Advanced Data Protection raises that to 25 categories and adds iCloud Backup, Photos, Notes and more, so trusted devices keep sole access to the keys. Apple says this data stays secure even in a cloud data breach. The setting has been available since iOS 16.2, iPadOS 16.2 and macOS 13.1. Prices are the lowest here, with 50 GB at $0.99 a month in the US. The trade-offs are real: the feature is off by default, Apple cannot help recover data if you lose access, so you need a recovery contact or key, and it is designed for Apple hardware rather than mixed Windows or Android homes.

Filen is a younger service that has earned attention among privacy users by making its apps open source. It describes itself as built around zero-knowledge end-to-end encryption, with client-side AES 256-bit encryption, and says neither Filen nor any other agency can access stored files. New accounts get 10 GB free. Beyond basic storage, Filen offers a network drive with Smart Sync, five sync modes for backup or two-way sync, encrypted notes with markdown and checklists, and end-to-end encrypted chats. Filen says it does not restrict transfer speeds and that every feature and full encryption are included in each plan's price. Apps cover the web, desktop, mobile and a command line. The caveats are maturity and transparency on our side: some App Store reviews mention camera upload failures, and the pricing page rendered without a readable USD price from our location, so pricing is pending.

pCloud is a general cloud drive first and an encrypted one second. Its zero-knowledge protection lives in pCloud Encryption, a paid add-on that turns on a Crypto folder. Files dropped there are encrypted on the device before upload, and pCloud says only you hold the key and that no one else can see the type, contents or size of those files. To test the design, pCloud ran a 180-day hacking challenge with a $100,000 award; it reports 2,860 participants and zero successful hacks. On the US App Store, Premium is $4.99 a month and the Encryption add-on is another $4.99, and the add-on is also sold as a lifetime purchase. The model suits people who want strong media streaming and photo backup for everyday files while keeping a smaller vault for sensitive ones. It is a weaker fit for anyone who wants every file encrypted by default, and free accounts can be closed after six months without use.

Tresorit is the business-grade option on this list, and its personal plans inherit that focus. The company says files are encrypted on your device before upload, so no one besides you and the people you share with can read them, including Tresorit's own admins. The personal range runs from Personal Lite with 50 GB, a 2 GB file size limit and two devices, through Essential with 1 TB and ten devices, to Pro with 4 TB and advanced permission controls. A free plugin sends encrypted attachments from Gmail or Outlook, and the mobile app adds encrypted camera upload, two-factor authentication and an app passcode. Devices can be wiped remotely. The trade-offs are cost and limits: there is no permanent free tier, the 14-day trial requires payment information, and file history is counted in versions rather than days. Tresorit's pricing page showed euros from our location, so the USD price is pending.

Icedrive keeps its pricing simple and puts encryption on every paid plan. Files placed in the encrypted space are protected locally with Twofish before upload, and Icedrive says its servers only ever receive the encrypted version. The Pro 2 TB plan adds 90 days of file versioning, unlimited desktop sync devices, five mobile and web devices and a 1 TB monthly public sharing quota. Shared links can carry passwords, expiry dates and download limits, and file requests let other people send files straight into your cloud. Lite is listed at $4.99 a month on the US App Store, and the website offered Pro 2 TB at $6.29 a month for the first year. Lifetime plans are also available. The free plan is the weak spot for this list: Icedrive states it has no crypto and no file history, so privacy buyers need to pay from day one.

Internxt sells encrypted storage mainly on annual and lifetime terms, and stands out for publishing its code as open source and independently audited. Its pricing page lists post-quantum encryption and zero-knowledge AES-256 encryption on every paid plan, and the company says files are end-to-end encrypted before they leave your device. Essential gives 1 TB, Premium 2 TB with file versioning and sharing with others, and Ultimate 5 TB with photos, CLI and WebDAV access, NAS and Rclone support and premium support. Paid plans also bundle an encrypted VPN and antivirus, which adds value if you would otherwise buy those separately. The limits: the free tier is only 1 GB, versioning is missing from the cheapest plan, and the iOS app has a 2.8 rating on the App Store. The pricing page showed euros from our location, so the USD price is pending.