Best Free Cloud Storage in 2026: Google Drive, OneDrive, MEGA and Encrypted Alternatives

For Windows users, one important detail deserves more attention: OneDrive’s free 5 GB is a shared Microsoft cloud allowance, not a private storage compartment reserved for your documents. Outlook.com attachments and content from Microsoft 365 apps also draw from it. Microsoft separately provides 15 GB of Outlook.com mailbox storage—but that does not stop attachments from counting against the cloud quota too.

Six free cloud storage plans, six different compromises​

These services address different needs. The following comparison separates capacity from the restrictions most likely to affect a purchasing—or uploading—decision.

The takeaway: choose the workflow first, then check whether the free allowance can support it. A roomy account that obstructs sharing may be less useful than a smaller one that fits your daily work.

OneDrive: convenient on Windows, but watch the whole quota​

OneDrive’s strongest argument is its Windows workflow. Microsoft documents opening OneDrive from Start, signing in, and completing setup; synced files then appear in File Explorer. The notification-area cloud icon provides sync status and access to settings. Personal and work or school accounts appear separately, helping users distinguish their storage locations.

For a small trial, rather than a wholesale migration:

1. Open Start, search for OneDrive, and launch it.
2. Sign in with the account you intend to use and complete setup.
3. Copy a few non-sensitive sample files into its File Explorer location.
4. Check the OneDrive cloud icon for their sync status.

Microsoft’s documented workflow supports those steps; copying sample files first is a practical precaution, not a claim of firsthand testing.

Capacity is the catch. Microsoft says exceeding the cloud allowance prevents new OneDrive uploads, edits, and syncing. It can also stop Outlook.com from sending or receiving email even when the separate mailbox quota has not been exceeded. That makes storage housekeeping more consequential than simply finding room for another presentation.

Security terminology also needs care. Microsoft describes TLS protection in transit and per-file AES-256 encryption at rest, with keys protected through Azure Key Vault. Those are meaningful protections, but they are not the same architecture as client-controlled end-to-end encryption designed to keep file contents inaccessible to the provider.

Bottom line: OneDrive is a sensible Windows shortlist choice, provided you assess the account’s combined storage consumption rather than counting only the files visible in its folder.

Google Drive: collaboration comes with shared storage​

TechRepublic favors Google Drive for users who regularly collaborate in Docs, Sheets, and Slides. That is a workflow recommendation rather than a claim that it wins every storage or privacy comparison.

Google’s storage guidance confirms the central constraint: Drive, Gmail, and Google Photos share account storage. An allowance that looks comfortable for documents may already be partly occupied by photographs and email.

There is also an onboarding qualification. TechRepublic reports that Google is testing a 5 GB starting allowance for some new accounts, with the full 15 GB unlocked through phone verification. That should not be presented as a universal reduction affecting all existing accounts. For anyone signing up, the practical move is to inspect the allowance actually displayed before planning a large upload.

MEGA: the capacity leader in this comparison​

TechRepublic identifies MEGA’s 20 GB plan as the strongest free-capacity option among these six services offering end-to-end encryption. It also warns that free transfer limits can interrupt downloading or streaming even when unused storage remains.

That distinction changes the recommendation. A collection you upload and occasionally retrieve has different requirements from large files that several recipients repeatedly download. Storage capacity answers “How much fits?” Transfer allowance answers “How readily can we get it out?”

Treat MEGA’s larger allowance as a reason to shortlist it—not as evidence of unlimited distribution or a performance advantage.

Proton Drive: verify the starting allowance​

Proton’s own documentation confirms that new free accounts start with 2 GB of Drive storage. Completing its welcome checklist within the first 30 days adds 3 GB, bringing the allowance to 5 GB. The advertised maximum therefore requires action rather than merely creating an account.

Proton says Drive uses end-to-end encryption so that only users and their chosen recipients can see file contents—not Proton itself. Its document tools also extend beyond passive storage: Proton documents encrypted Docs and Sheets editors, including spreadsheets encrypted by default.

The sensible evaluation is therefore broader than “Does my folder fit?” Try a representative document and spreadsheet, check the required features, and establish how you will recover account access before entrusting it with irreplaceable records.

Sync.com: sharing permissions deserve scrutiny​

Sync.com’s documentation confirms 5 GB of free end-to-end encrypted storage, desktop and mobile applications, Vault, and file version history. It also establishes a potentially important sharing boundary: free users can create three Team Shared Folders, but cannot make those folders read-only. Invitees can add, change, and delete files.

For Windows and Office users, another distinction matters. The free web panel cannot preview Word, Excel, or PowerPoint files, yet its Edit in Office function can open supported files in Microsoft’s online editor and save changes back. Sync says editing may require a separate Microsoft 365 license. Missing previews and missing editing support are not interchangeable limitations.

Bottom line: check permissions as carefully as encryption. Private storage does not automatically mean every sharing arrangement is suitably restrictive.

Internxt: an evaluation account, not a large archive​

Internxt confirms a 1 GB free allowance and describes its free service as including zero-knowledge and post-quantum encryption. Those are vendor-described capabilities, not independent proof that the service is superior to every competing encryption design.

At this capacity, the practical role is a small document collection or an evaluation before committing money. Test upload, download, sharing, and restoration with files resembling your real workload. This comparison does not establish measured transfer speeds or justify a performance ranking.

A separate warning for Microsoft 365 households​

The paid upgrade path should not be confused with OneDrive’s free allowance. Microsoft’s documentation says new Microsoft 365 Family and Premium subscriptions—including expired subscriptions repurchased—from October 8, 2026, receive 2 TB of shared storage. Existing subscribers generally transition at their first renewal on or after May 2, 2027, although eligible plan changes can bring that forward. Individual files remain private unless shared.

For households comparing upgrades, the distinction between a shared pool and individual allocations is material. Check the model applying to your subscription, not simply the plan name.

Choose for the day something goes wrong​

Our practical recommendation is to make recovery part of the selection process:

• Check the actual quota, including other services consuming it.
• Test a recipient’s experience, including permissions and account requirements.
• Understand recovery, especially where encryption depends on credentials or recovery material you control.
• Keep an independent copy of irreplaceable files.

These are evaluation precautions, not claims that any one provider guarantees recovery. The right free cloud storage service is the one whose capacity, privacy model, and everyday workflow you understand—and whose limitations will not become a surprise at the worst possible moment.