Is Mega.nz Safe? Everything You Need to Know Before Using It

Mega.nz comes up a lot when people look for free cloud storage alternatives to Google Drive. It offers 20 GB free, end-to-end encryption, and has been around since 2013. But it also has a complicated history and some legitimate questions around its ownership. Here's an honest assessment.

What Mega.nz actually is

Mega is a cloud storage service founded in New Zealand in 2013 by Kim Dotcom, the controversial entrepreneur behind Megaupload. Dotcom has since left the company — he sold his stake in 2015 following disputes with the board. The company is now owned by different shareholders and is listed on the New Zealand Stock Exchange.

The company's unusual history makes some people nervous. But the technical security of the service is largely independent of who owns it — and that technical security is actually quite strong.

The encryption: what it means in practice

Mega uses end-to-end encryption for all files. This means files are encrypted on your device before they're uploaded, and only decrypted when you download them. Mega's servers hold only the encrypted ciphertext — they cannot read your files even if they wanted to, and even if compelled by a court order.

This is different from most cloud storage providers. Google Drive, Dropbox, and iCloud all encrypt files at rest, but they hold the encryption keys — meaning they can read your files and hand them to authorities if required. Mega cannot.

For ordinary users storing personal documents, photos, or work files, this level of encryption is more than sufficient. Mega's implementation uses AES-128 for file encryption and RSA-2048 for key exchange — both well-established standards.

Is there anything to be cautious about?

A few things are worth knowing:

Account recovery. Because Mega can't read your files, if you forget your password and lose your recovery key, your files are gone permanently. There's no "forgot password" mechanism that recovers encrypted data. Store your recovery key somewhere safe.

The free 20 GB is permanent, but has transfer limits. Mega's free tier limits how much data you can transfer (upload/download) in a given period. For most use cases — backing up Drive files and accessing them occasionally — this is fine. If you're streaming large video files daily, you might hit limits.

The 2022 NZ court case. New Zealand courts ordered Mega to hand over account information (not file contents) related to a criminal investigation. Because of end-to-end encryption, the file contents remained inaccessible. This actually demonstrates the encryption working as intended.

Who should use Mega.nz

Mega is well-suited for: storing documents you want kept private, backing up Drive files when your Google storage is full, anyone who values encryption over convenience, and people looking for free cloud storage with a mature and well-funded provider.

It's less suitable for: teams collaborating in real time on documents (Google Workspace is better for this), users who need tight integration with mobile apps, or people who can't be trusted to keep their recovery key safe.

Using Mega.nz with GTransfer

If you're looking to move Google Drive files to Mega.nz — either to free up Google storage or as a backup — GTransfer handles the transfer automatically. You connect both accounts, select which Drive files to move, and GTransfer transfers them directly cloud-to-cloud. No downloading to your device required. The Pro plan is a one-time £19 and includes 20 GB of free Mega storage.

The short answer to "is Mega.nz safe?" is: yes, for most people and most use cases. The encryption is genuine, the service has been running for over a decade, and the free storage offer is legitimate and permanent.