12 Free Cloud Storage Apps You Can Stack for 100GB+ (Without Paying Google)
Google Drive gives you 15GB and stops there. Most people just accept that limit, delete a few old files, and move on.
But nothing forces you to store everything in one account. Every major cloud provider gives away free storage to attract new users. Combine enough of them, and you can build well over 100GB of free space — legally, without a single subscription. This guide shows you how to stack accounts the smart way, not just which apps exist.
Why Stacking Beats Picking “The Best One”
Most cloud storage articles rank apps against each other and tell you to pick a winner. That approach misses the point. These services aren’t competing for your loyalty — they’re each offering a free sample to get you in the door. You don’t have to choose. You can take all the samples.
The real skill isn’t finding the single best free cloud app. It’s assigning each account a clear job so you don’t lose track of what’s stored where. A messy stack of ten accounts is worse than one organized Google Drive. An organized stack turns those same ten accounts into a real backup system.
The Stacking Rule: One Account, One Job
Before you sign up for anything, set a rule for yourself. Each cloud account gets exactly one category of files. Never mix categories.
Here’s a simple structure that works for most people:
Working documents go in one account you check daily.
Photo and video backups go in a second account you rarely open.
Long-term archives — old projects, tax documents, files you might need once a year — go in a third.
Sensitive files (IDs, contracts, financial records) go in an encrypted account, kept separate from everything else.
This structure matters more than which specific apps you choose. Without it, you’ll forget which account holds which file within a few months.
12 Free Cloud Storage Apps Worth Stacking
Here’s what each app brings to your stack, sorted by how much free space you get.
1. MEGA — 20GB
MEGA gives the largest permanent free allowance among major providers, plus end-to-end encryption by default. It’s a strong pick for your sensitive-files account, since even MEGA itself can’t read your data without your key. Watch for signup bonuses — some extra storage is promotional and expires after 30 days, while the base 20GB stays free indefinitely.
2. Google Drive — 15GB
Google Drive earns its spot through integration, not size. If you already use Gmail and Google Photos, that 15GB is shared across all three — so treat this account as your everyday working-documents folder, not a dumping ground for backups.
3. pCloud — 10GB
pCloud performs well in sync speed tests and includes a media player built for streaming video straight from storage. It works well as your photo and video backup account, especially if you also want to browse those files without downloading them first.
4. Icedrive — 10GB
Icedrive mounts your storage as a virtual drive, so files feel local even though they live online. That makes it a good fit for an archive account you open occasionally through your file explorer instead of a separate app.
5. Koofr — 10GB
Koofr’s standout feature is account aggregation: it can connect to your other cloud accounts and let you browse them from one dashboard. Use Koofr as your stack’s control center once you have three or four other accounts running.
6. Filen — 10GB (expandable to 50GB)
Filen offers client-side encryption and a referral program that can stretch your free allowance up to 50GB. If you’re willing to invite a few people, this becomes one of the largest free tiers on the list — a strong choice for your sensitive-files account alongside MEGA.
7. Box — 10GB
Box targets business users, which means stronger file-versioning and sharing controls than most consumer apps. It suits a stack slot for documents you collaborate on with other people, like shared project files or client deliverables.
8. TeraBox — 1TB
TeraBox advertises a massive 1TB free tier, far beyond anything else on this list. Treat that number carefully. The privacy track record is weaker than the other apps here, so reserve TeraBox for large, non-sensitive files only — think personal video libraries, not financial records or IDs.
9. Proton Drive — 5GB
Proton Drive comes from the team behind Proton Mail and uses zero-knowledge encryption, meaning the company itself can’t access your files. The free tier is small, but it pairs naturally with a Proton Mail account if privacy is your main priority for one specific folder.
10. Sync.com — 5GB
Sync.com focuses on privacy-first collaboration, with encryption applied by default rather than as an add-on. Its free tier is modest, but the zero-knowledge model makes it a reasonable second option alongside Proton Drive for anything you’d rather no company could read.
11. OneDrive — 5GB
OneDrive matters mainly if you already pay for Microsoft 365 or run Windows daily. The free 5GB syncs automatically with File Explorer, which makes it a low-effort slot for quick file transfers between your own devices.
12. Dropbox — 2GB
Dropbox’s free tier is the smallest on this list, so don’t count on it for real storage. Use it only to test the desktop client or to send files quickly to someone who doesn’t have another cloud app installed.
Add These Up: What a Full Stack Actually Gets You
Combine the encryption-focused accounts (MEGA, Filen, Proton Drive, Sync.com) with the mainstream ones (Google Drive, pCloud, Icedrive, Koofr, Box, OneDrive, Dropbox), and you’re well past 100GB before counting TeraBox at all. Add TeraBox for large non-sensitive files, and the total climbs into terabyte territory — all without a single monthly bill.
The catch isn’t storage. It’s discipline. Free accounts on inactive services can be deleted after long periods of no use, so log into each one every few months, even briefly, to keep the account active.
KeepYour Stack From Becoming a Mess
A stack only works if you can find things later. Three habits keep it manageable.
Write down your account map. Keep a simple note — in a password manager, not a plain text file — listing which app holds which category of files and the login for each.
Name folders the same way everywhere. If your Google Drive uses “2026-Taxes,” use the identical name in every other account. Consistency beats cleverness here.
Never split a single project across accounts. A project’s files should live in one place, not scattered for the sake of saving a few gigabytes. Splitting related files defeats the purpose of organizing by category in the first place.
Is Stacking Free Cloud Storage Actually Worth It?
For personal backups, photo libraries, and document archives, yes — the setup takes an afternoon and saves real money over paid storage tiers. For business-critical files, the calculus changes. Juggling five logins introduces more room for error than one paid plan with proper access controls. Use free stacking for what you can afford to reorganize occasionally, and pay for storage the moment a single point of failure would actually hurt.
