Transfer, Sync & Back Up Internxt to Any Cloud

What is Internxt?

Internxt is an open-source, end-to-end encrypted cloud storage service based in Valencia, Spain. Its desktop, mobile and CLI clients are published on GitHub, so the encryption can be independently audited — and in 2024 a Securitum security review found no critical vulnerabilities in its zero-knowledge architecture. Every file is protected with AES-256 under a zero-knowledge model, meaning passwords, mnemonics and encryption keys are never stored or transmitted in plaintext. In 2024 Internxt became the first consumer cloud to ship post-quantum encryption, layering the Kyber-512 algorithm on top of AES-256 to defend against future quantum attacks. Storage comes in four tiers: 1 GB free for life, then Essential (1 TB), Premium (3 TB) and Ultimate (5 TB) — each available as an annual subscription or a stackable lifetime purchase priced from €135 to €585 and extendable up to 100 TB.

Internxt ships no native cloud-to-cloud migration tool, and its rclone / API access is gated to the Ultimate tier only — Free, Essential and Premium accounts are rejected with a rclone access not allowed for this user tier error. That makes moving data in or out of Internxt without a third-party engine slow and manual. CloudsLinker connects to an Ultimate account over Internxt's native rclone integration and runs the transfer server-to-server, so neither the source nor the destination cloud has to touch your computer.

Key features of Internxt

First post-quantum cloud

Internxt was the first consumer cloud to add post-quantum encryption, applying Kyber-512 on top of AES-256. CloudsLinker transfers the decrypted file content to your chosen destination; re-encryption is governed by the target cloud.

Open source & audited

Client code is public on GitHub and a 2024 Securitum audit reviewed the zero-knowledge implementation with no critical findings — rare transparency among consumer clouds.

Zero-knowledge by default

Keys are derived on-device from your password and mnemonic; Internxt's servers never see plaintext. Keep your mnemonic safe — losing it means losing access, even to support.

rclone access is Ultimate-only

Native rclone (the path CloudsLinker uses) works solely on Ultimate annual or lifetime plans. Free, Essential and Premium accounts return a tier-permission error and cannot be connected.

Stackable lifetime plans

One-time lifetime tiers run €135–€585 for up to 5 TB, are stackable, and can be extended to 100 TB — a strong fit as a permanent CloudsLinker backup destination.

40 GB per-file rclone cap

Although Ultimate allows 100 GB files via the web, the rclone / CLI / WebDAV path caps single files at 40 GB. CloudsLinker chunks large uploads but cannot exceed that per-file limit.

Why connect Internxt to CloudsLinker

CloudsLinker connects to Internxt with your account email and password (plus a 6-digit 2FA code when enabled) through Internxt's native rclone integration, which requires an Ultimate plan. Once connected, it moves files directly between Internxt and 140+ destinations — Google Drive, OneDrive, Dropbox, Proton Drive, Wasabi and S3 — with incremental sync, scheduled jobs and folder/size filters, while respecting Internxt's 40 GB per-file rclone limit and chunking large uploads automatically.

What you can do with Internxt on CloudsLinker

Direct Internxt-to-any-cloud copies

Move Internxt content to Google Drive, OneDrive, Dropbox, Proton Drive, Wasabi, S3 and 140+ more — or back up any of those clouds <em>into</em> your encrypted Internxt vault.

No device needed

Internxt transfers run on CloudsLinker's servers. No Internxt desktop app, CLI config or local rclone install required on your side.

Scheduled incremental backups

Schedule nightly or weekly jobs that copy only changed files in or out of Internxt — useful for keeping a lifetime Ultimate plan in sync with an active Google Drive or OneDrive.

Filter by folder, size, type

Copy only <code>/Documents</code>, skip files over 40 GB that exceed Internxt's rclone cap, or move just photos and PDFs.

Common Internxt transfer scenarios

Move a privacy archive from Google Drive or Dropbox into Internxt

Users leaving a US-hosted cloud for stronger privacy can migrate their Google Drive or Dropbox into Internxt's zero-knowledge, post-quantum vault. CloudsLinker runs the copy server-to-server into an Ultimate account, so a multi-hundred-GB library moves without a local download-and-reupload cycle.

Back up Internxt to Wasabi or S3 with Object Lock

Internxt has no Object Lock of its own. Schedule a CloudsLinker nightly sync from Internxt to Wasabi or Amazon S3 with immutability enabled, adding a ransomware-resistant, versioned copy on top of Internxt's encrypted storage.

Use an Internxt lifetime plan as a permanent archive

An Internxt lifetime tier (€135–€585, up to 5 TB and stackable) has no recurring cost. Point a weekly CloudsLinker incremental backup from your active OneDrive or Google One into Internxt for effectively perpetual off-site storage.

Consolidate other encrypted clouds into Internxt

Households or teams running several privacy clouds — Proton Drive, MEGA, Filen — can use CloudsLinker to migrate each one into a single Internxt account, decrypting at the source and re-storing under Internxt's keys.

Keep an EU-hosted compliance copy

Because Internxt is Spain-based and GDPR-aligned, regulated teams use it as an EU data-residency target. CloudsLinker can schedule one-way sync from a US cloud (Dropbox, Box) into Internxt so the European copy stays current with delta updates.

How to connect Internxt to CloudsLinker

Internxt connects with account credentials (email + password) over its native rclone integration. There is no OAuth flow.

Before you start

You need an Ultimate plan. Native rclone access — the path CloudsLinker uses — works only on Internxt Ultimate (annual or lifetime). Free, Essential and Premium accounts are rejected with a rclone access not allowed for this user tier error. Upgrade first if needed. (Internxt: native rclone support)
Know your 2FA status. If two-factor authentication is enabled on your Internxt account, have your authenticator app ready for the 6-digit code. If it’s disabled, you’ll leave that field empty.

Connection steps

In CloudsLinker, click Add Cloud → choose Internxt.
Enter the email address for your Internxt Ultimate account.
Enter your Internxt password. Internxt derives your encryption keys from this on-device, so it is never sent to Internxt in plaintext.
If 2FA is enabled, enter the current 6-digit code; otherwise leave it blank.
Click connect. On success, Internxt appears in your cloud list, ready to use as a transfer or sync source or destination.

To revoke access later: change your Internxt account password (this invalidates the stored session), then remove the Internxt entry from your CloudsLinker dashboard.

Internxt upload & download limits you should know

Internxt’s caps differ between the web app and the rclone path CloudsLinker uses — the rclone limits are the ones that matter here.

Maximum single file size (rclone / CLI / WebDAV): 40 GB. The web uploader allows up to 100 GB on Ultimate, but the rclone path is capped at 40 GB per file.
Per-plan web file limits: Ultimate 100 GB, Premium 50 GB, Essential 1 GB. Mobile uploads cap at 5 GB.
rclone chunking: large files upload in chunks of 100 MiB–5 GiB, with a default upload cutoff of 100 MiB and concurrency of 4.
rclone access tier: Ultimate only (annual or lifetime). Free, Essential and Premium return a tier-permission error.
Storage tiers: 1 GB free for life → Essential 1 TB → Premium 3 TB → Ultimate 5 TB. Lifetime plans €135–€585, stackable up to 100 TB.
Encryption: AES-256 zero-knowledge plus Kyber-512 post-quantum; independently audited by Securitum (2024).
No published daily transfer cap, but throughput is bounded by per-file encryption/decryption overhead and destination API limits.

Sources: Internxt Help: rclone size & upload limits, Internxt Help: native rclone support (Ultimate only), rclone.org: Internxt Drive backend, Internxt: pricing & plans.

Internxt + CloudsLinker — Frequently Asked Questions

Is Internxt safe to use?

Yes. Internxt uses AES-256 zero-knowledge encryption — keys are derived on your device and never sent to its servers — and it is the first consumer cloud to add post-quantum encryption (Kyber-512). Its client code is open source on GitHub and a 2024 Securitum audit found no critical vulnerabilities in the encryption architecture.

Does Internxt really use post-quantum encryption?

Yes. In 2024 Internxt became the first consumer cloud storage provider to deploy post-quantum cryptography, layering the Kyber-512 key-encapsulation algorithm on top of AES-256. This protects stored data against future 'harvest now, decrypt later' quantum attacks.

What Internxt plan do I need to connect to CloudsLinker?

An Ultimate plan (annual or lifetime). Native rclone access — the method CloudsLinker uses — is restricted to Ultimate. Free, Essential and Premium accounts are rejected by Internxt's servers with a rclone access not allowed for this user tier error, so upgrade to Ultimate before connecting.

What is the largest file I can transfer to or from Internxt?

Through the rclone / CLI / WebDAV path that CloudsLinker uses, single files are capped at 40 GB — even though Ultimate allows 100 GB files via the web uploader. CloudsLinker chunks large files (rclone chunks range 100 MiB–5 GiB) but cannot exceed the 40 GB per-file limit.

How much does Internxt cost?

There is a 1 GB free-for-life tier. Paid plans are Essential (1 TB, from about $30/year), Premium (3 TB, adds VPN) and Ultimate (5 TB, full features). Lifetime versions run €135–€585 one-time, are stackable, and can be extended up to 100 TB.

Can CloudsLinker read my zero-knowledge Internxt files?

To copy a file to another cloud it must be decrypted in transit, which happens inside your authenticated rclone session during the transfer. CloudsLinker does not persistently store your files, mnemonic or password; the data is re-stored under the destination cloud's own encryption.

Does Internxt support two-factor authentication?

Yes. If you have 2FA enabled on your Internxt account, enter the 6-digit code during connection. If 2FA is off, leave the field blank. Enabling 2FA is recommended since the rclone config stores sensitive credentials.

How long does it take to transfer 1 TB?

Expect roughly 200–500 GB/day depending on file count and destination API limits. Internxt is slower per byte than plain object storage because every file is encrypted and decrypted, and many small files add per-call overhead versus a few large ones.

How do I revoke CloudsLinker's access to Internxt?

Because access is credential-based, change your Internxt account password (and regenerate 2FA if needed) to invalidate the stored session, then remove the Internxt connection from your CloudsLinker cloud list.

Is this an official Internxt partnership?

No. CloudsLinker connects through Internxt's public native rclone integration under your own Ultimate-plan authorization. You can disconnect at any time from your CloudsLinker dashboard.

Internxt transfer guides

Step-by-step walkthroughs for moving data to and from Internxt.

Dropbox to Internxt: Move to Cheaper, Zero-Knowledge Storage (2026)

Leave Dropbox's recurring fees for Internxt's lifetime, post-quantum encrypted storage. Compare a manual browser move with a direct …

How to Move Files from Google Drive to Internxt's Encrypted Cloud (2026)

Transfer files from Google Drive to Internxt, a zero-knowledge cloud with post-quantum encryption. Browser upload and a direct …

Internxt to Google Drive: Move Files Back for Collaboration (2026)

Transfer files from Internxt to Google Drive when you need real-time collaboration and sharing. Compare a manual browser move with a direct …

MEGA to Internxt: Upgrade to Open-Source, Post-Quantum Storage (2026)

Move files from MEGA to Internxt for open-source, audited, post-quantum encryption and lifetime pricing. Manual upload vs a direct …

OneDrive to Internxt: Leave the Microsoft Cloud for Private Storage (2026)

Move files from OneDrive to Internxt, an open-source cloud with zero-knowledge, post-quantum encryption. Manual upload vs a direct …

Proton Drive to Internxt: Swap Subscriptions for Lifetime Encrypted Storage (2026)

Move files from Proton Drive to Internxt for one-time lifetime pricing and post-quantum encryption. Manual upload vs a direct cloud-to-cloud …

Conclusion

Internxt offers rare guarantees — open-source, zero-knowledge, post-quantum encryption and stackable lifetime storage — but no native way to move data in or out, and rclone access is locked to the Ultimate tier. CloudsLinker bridges that gap with server-to-server transfers, scheduled incremental backups and selective sync between Internxt and 140+ clouds. Connect an Ultimate account and start your first migration in minutes.

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