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MEGA has the largest clearly documented mainstream free allowance in this comparison: 20 GB for one account. Google offers 15 GB, but Drive, Gmail and Google Photos all use the same quota; OneDrive includes 5 GB, and Dropbox Basic starts at 2 GB with a referral option for earning more. No unlimited-free plan was identified. The best choice depends not only on the headline capacity, but also on what counts against it, how you use your devices, and whether transfer, privacy or collaboration limits matter to you.

Which cloud storage gives you the most free space?

MEGA leads the documented single-account allowances here at 20 GB. Google’s 15 GB is the next-largest listed baseline, though it covers three Google services rather than Drive alone. OneDrive offers 5 GB, while Dropbox Basic starts at 2 GB.

Service Free storage What to know
MEGA 20 GB TechRadar’s 2026 listing gives this as the free cloud-storage allowance. Temporary bonus blocks may be offered for specified actions, and transfer limits can vary.
Google Drive 15 GB Google’s current help documentation says the quota is shared across Drive, Gmail and Google Photos.
OneDrive 5 GB Microsoft documents this for a free Microsoft account.
Dropbox Basic 2 GB starting allowance Dropbox’s 2026 information says users can earn additional space through referrals.

These are the documented baseline figures, not a promise that every account will receive temporary promotions or that every feature will be available in every region. Free-tier amounts, bonus conditions, transfer allowances and plan terms can change, so check the provider’s current terms before moving a large library.

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How should you choose between the free plans?

Start with the amount of usable space you need, then check how the service fits your devices and workflow. A larger quota is only useful if you can access, share and recover your files in ways that suit you.

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Count the storage you can actually use

Google’s 15 GB is shared across Drive, Gmail and Google Photos. If those services already hold a large email or photo library, you have less room for new Drive files than the headline number suggests. The quota may be recoverable by deleting large email attachments or photo backups you no longer need, but do not assume all 15 GB is available for documents.

The other figures in the comparison describe the listed free cloud-storage allowances for their services. They are not directly interchangeable with Google’s shared quota unless you account for what you already store in each account.

Check device and platform fit

Choose a service that works with the phone and computer you actually use. Confirm that you can reach your files from those devices and that the workflow is practical for how you upload, download and share them. Platform availability is a core selection factor; capacity alone does not settle the choice.

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Separate privacy from capacity

Storage size does not tell you how a service protects your files. Treat privacy and encryption as their own comparison criteria, and check the provider’s current explanation of how files are protected. Do not infer that the service with the most free gigabytes also has the strongest privacy protections.

Consider transfer and collaboration needs

MEGA’s free transfer allowance can vary, so a 20 GB storage figure does not guarantee that you can move or download that much data in a particular period. Google is a strong fit when you need to collaborate with Docs, Sheets and Slides. Consider these limits and capabilities alongside capacity if you regularly move large files or work on shared documents.

Look at the next step before you commit

If you expect your library to grow, understand the provider’s expansion path and account-sharing rules before migrating. Google One and Microsoft 365 are documented paid expansion paths for Google and Microsoft storage, respectively. Review the current plan terms rather than assuming that a free account can be expanded or shared in a particular way.

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How can you get more cloud storage without paying?

Use the free space that is available efficiently, and rely on bonuses only when their conditions suit you. The practical goal is not simply to collect the largest number of accounts, but to keep enough usable space in a system you can manage.

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  1. Start with one high-capacity account. Use the MEGA account’s listed 20 GB or another service that fits your needs before creating multiple accounts. Keeping files spread across many logins makes searching, sharing and account recovery harder.
  2. Check what is consuming Google’s shared quota. Include Drive files, Gmail and Google Photos in the same calculation. Removing large email attachments or photo backups may recover space if you no longer need those items.
  3. Treat MEGA bonus blocks as temporary. TechRadar’s 2026 information says bonus blocks may be available for specified actions. Verify their expiration and transfer conditions before counting them toward storage you need to keep long term.
  4. Use Dropbox referrals only under current terms. Dropbox documents referrals as a way to earn additional free space. Check the provider’s active rules before relying on a referral bonus.
  5. Keep an independent backup of irreplaceable files. A free cloud account is useful storage, but a quota is not a tested backup plan. Maintain another copy of important files and make sure you can restore it.

Can you combine free storage from several services?

You can use multiple services, but their quotas remain separate accounts rather than one unified pool in the comparison described here. In theory, stacking many providers can add up to more than 1 TB, but administering that many services is impractical for most people.

Multiple accounts can make sense when you have a clear reason to separate files—for example, distinct personal and collaboration workflows—but the added capacity comes with more places to search, share and recover access. Before splitting a large library, decide which account holds each category and how you will keep track of the copies. Do not treat combined headline allowances as equivalent to one account with that much available space.

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Is there truly unlimited free cloud storage?

No single-provider unlimited free plan was identified among the services and evidence covered here. The documented offers are finite quotas, and some apparent ways to increase them—such as temporary bonus blocks or referrals—have conditions rather than creating unlimited storage.

Be cautious of any offer described as unlimited: check the actual free-tier terms, limits on transfer or use, and whether the offer is temporary. A service’s storage quota and its rules for moving data are separate considerations.

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What should you do before moving a large file library?

Choose a primary account only after checking its quota scope, platform fit, file-sharing needs, privacy approach and growth path. Then move files deliberately rather than scattering them among accounts just to add up more free space.

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  • Estimate the space your existing library uses and identify which files need to stay readily accessible.
  • For Google, account for Gmail and Photos as well as Drive before estimating available room.
  • Check current bonus expiration and transfer conditions if you are counting MEGA bonus blocks.
  • Review paid expansion and account-sharing terms if you may need more space later.
  • Keep a separate backup of important files and confirm that you can restore them.

Frequently Asked Questions

Can I move files between free cloud services later?

You can change where you keep files, but the allowances listed for separate providers do not become a single shared quota when you use more than one account. If a future move matters, check current transfer limits and leave enough room to manage the transition.

Is free cloud storage a backup for my only copy of a file?

It is safer not to rely on a single cloud account as the only copy of an irreplaceable file. Keep another independent copy and make sure you know how to restore it.

Does having more free gigabytes mean a cloud service is more private?

No. Storage capacity and privacy protections are separate criteria. Check how each provider describes its encryption and privacy practices rather than using the quota as a proxy.

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