Cloud storage is convenient, but is it really safe to put sensitive files on Google Drive or Dropbox? These services encrypt data on the server side, sure, but the provider can still access your files. If they receive a legal request, they can hand over your data. And the risk of internal breaches is never zero.
NordLocker is an encrypted cloud storage service by Nord Security, the company behind NordVPN. It uses zero-knowledge architecture, meaning even Nord Security itself cannot see your files.
This article reviews NordLocker's encryption technology, pricing, and how it compares to other secure cloud storage services.
What Is NordLocker
NordLocker launched in 2019 as an encrypted cloud storage service. It is developed by Nord Security, the same group behind NordVPN, NordPass, and NordLayer.
When you hear "cloud storage," you probably think of Google Drive or Dropbox. NordLocker is fundamentally different. Traditional cloud storage uses server-side encryption (SSE), where the provider holds the keys. NordLocker encrypts files on your device before uploading them. The server only ever stores encrypted data.
| Detail | Info |
|---|---|
| Developer | Nord Security (Lithuania/Panama) |
| Encryption | AES-256 + xChaCha20-Poly1305 |
| Architecture | Zero-knowledge |
| Platforms | Windows, macOS, Android, iOS, Web |
| Free plan | 3 GB |
Pricing Plans
NordLocker offers a free tier and two paid plans.
| Plan | Storage | Monthly (annual) | Monthly |
|---|---|---|---|
| Free | 3 GB | Free | Free |
| Personal | 500 GB | $2.99/mo | $7.99/mo |
| Personal Plus | 2 TB | $6.99/mo | $19.99/mo |
Annual billing saves you a significant amount. The 500 GB plan at $2.99/month is less than a cup of coffee for half a terabyte of zero-knowledge encrypted storage.
NordVPN Complete plans include 1 TB of NordLocker storage. If you already use NordVPN, upgrading to a NordVPN Complete plan gets you NordLocker at no extra cost.
Security Architecture
NordLocker's security relies on a combination of proven encryption algorithms.
How Encryption Works
| Layer | Algorithm | Purpose |
|---|---|---|
| File encryption | AES-256 | Encrypts file contents |
| Metadata encryption | xChaCha20-Poly1305 | Encrypts file names and structure |
| Digital signatures | Ed25519 | Verifies data integrity and authenticity |
| Key derivation | Argon2 | Derives encryption keys from your password |
AES-256 is the industry standard used to protect classified information by the US government. xChaCha20-Poly1305, also used by NordPass, is a high-speed cipher that performs especially well on mobile devices.
Zero-Knowledge Architecture
"Zero-knowledge" means NordLocker has no ability to access your data.
- Files are encrypted on your device
- Only encrypted data is transmitted to the server
- Decryption keys exist only on your device
- Even Nord Security employees see nothing but encrypted binary data on the server
If NordLocker's servers were breached, attackers would only get encrypted data. Without the decryption keys, restoring the original files is computationally infeasible.
Key Features
Automatic Encryption
Every file uploaded to NordLocker is automatically encrypted. Drag and drop a file, and encryption plus upload happen in one step. No extra actions required.
Version History
NordLocker keeps previous versions of your files. If you accidentally overwrite something or ransomware encrypts your files, you can roll back to an earlier version.
Multi-Device Sync
Access your files from Windows, macOS, Android, iOS, or any web browser. Sync happens automatically across devices — upload on your PC, access from your phone.
File Sharing
Share encrypted files with other NordLocker users. End-to-end encryption is maintained during sharing, so even if someone intercepts the share link, the contents remain unreadable.
Comparison with Competitors
The encrypted cloud storage market has several serious options. Here is how NordLocker fits in.
| NordLocker | Proton Drive | Tresorit | |
|---|---|---|---|
| Encryption | AES-256 + xChaCha20 | AES-256 + OpenPGP | AES-256 |
| Zero-knowledge | Yes | Yes | Yes |
| Open source | Partial (crypto libraries) | Yes | No |
| Free plan | 3 GB | 5 GB | None |
| Paid plan (annual) | 500 GB: $2.99/mo | 200 GB: $4.99/mo | 500 GB: $10.42/mo |
| Headquarters | Panama/Lithuania | Switzerland | Switzerland |
| Linux app | No | Yes | Yes |
NordLocker works best for: People already using NordVPN or NordPass. Unifying under Nord Security's ecosystem simplifies account management. The 500 GB plan is also the cheapest option here.
Proton Drive works best for: Privacy maximalists. Swiss jurisdiction, open source, and a strong ecosystem with Proton Mail and Proton VPN. Also supports Linux.
Tresorit works best for: Businesses and teams. Compliance features (GDPR, HIPAA) and team management are its strengths. Overkill and overpriced for individual use.
Limitations and Why NordLocker Is Still Worth It
Let me be upfront about the downsides. But each one has context that matters.
No Linux app. Desktop apps are available for Windows and macOS only. However, the web app works on any browser, so Linux users can still access, view, and download files. For storing sensitive documents, the web interface is perfectly functional.
Local encryption was removed. Local lockers were discontinued in July 2025, making NordLocker a cloud-only service. This is a dealbreaker if you refuse to use cloud storage entirely. On the flip side, focusing exclusively on cloud storage has made the sync and multi-device experience more reliable.
Limited collaboration features. There is no real-time co-editing like Google Drive or Dropbox. But NordLocker is designed for secure storage and sharing, not collaborative document editing. Use Google Docs for collaboration, NordLocker for confidential files — that is the practical split.
Why people still choose NordLocker: The NordVPN + NordPass + NordLocker bundle lets you manage VPN, passwords, and encrypted storage under one account. Nord Security uses zero-knowledge architecture across all its services, ensuring consistent security. And at $2.99/month for 500 GB, it is the most affordable zero-knowledge cloud storage among the major players.
Wrapping Up
| Use case | Best pick |
|---|---|
| Already using NordVPN/NordPass | NordLocker (1 TB included in Complete plan) |
| Maximum privacy | Proton Drive (Swiss, open source) |
| Enterprise / compliance | Tresorit (GDPR, HIPAA) |
| Cheapest entry point | NordLocker 500 GB ($2.99/mo) |
| Linux desktop required | Proton Drive or Tresorit |
NordLocker is a specialist in encrypted storage. It is not a general-purpose cloud drive like Google Drive or Dropbox, but when it comes to keeping your files confidential, it excels.
If you already use NordVPN or NordPass, the NordVPN bundle plan is the most cost-effective way to add NordLocker. If you are new to Nord Security, start with the free NordLocker plan (3 GB) to see if it fits your workflow.