Google Drive, Microsoft OneDrive and Dropbox emerge as the top three cloud storage solutions. Google Drive suits collaborative teams and Google Workspace users; OneDrive integrates seamlessly with Microsoft 365 subscribers; Dropbox excels for creative professionals and file synchronisation across devices.
RANKENTRYSCORETRENDFROM
1Google DrivePowers over 4 billion users globally with seamless Google Workspace integration95.0NEWFree 2Microsoft OneDriveIncludes advanced security with ransomware detection and recovery capabilities92.7NEWFree 3DropboxTrusted by over 700 million registered users with industry-leading sync technology90.3NEWFree 4iCloudProvides end-to-end encryption by default for maximum privacy protection88.0NEWFree (5 GB); iCloud+ from £0.79/month 5Amazon DriveProvides unlimited photo storage for all Amazon Prime members at no additional cost85.7NEWFree (5 GB); Prime membership includes unlimited photos 6NextcloudOver 300,000 organisations worldwide control their data with self-hosted Nextcloud instances83.3NEWFree and open-source; Enterprise support from Custom 7Synology C2Designed specifically to complement Synology NAS with seamless backup integration81.0NEWFree (limited); Standard plans from £2.49/month 8BoxTrusted by Fortune 500 companies with industry-leading data governance capabilities78.7NEW£15 per user per month 9MegaProvides 50 GB free storage with mandatory end-to-end encryption on all files76.3NEWFree (50 GB); Pro from £4.99/month 10TresoritUses zero-knowledge encryption so Tresorit cannot access user data even under legal pressure74.0NEWBasic from £8/month; Family from £144/year The ranking, in detail
01
Simple, cloud-native collaboration at no upfront cost
Google Drive offers 15 GB of free storage and integrates deeply with Google Docs, Sheets, and Slides, enabling real-time collaborative editing. It provides robust sharing controls and works across all devices.
From FreeBest for SMEs, startups, and remote teams prioritising simplicity and zero setup friction.
95.0
02
Enterprise-grade cloud storage built into Windows and Microsoft 365
OneDrive integrates seamlessly with Microsoft Office and Windows, offering 5 GB free storage with automatic sync and version control. It features advanced sharing options and compliance tools suitable for businesses.
From FreeBest for Enterprises standardised on Microsoft 365; organisations with strict compliance and governance needs.
92.7
03
The most reliable file synchronisation and sharing platform
Dropbox provides intuitive file syncing across devices with powerful collaboration tools. It offers 2 GB free storage plus family plans and integrates with over 500 third-party applications.
From FreeBest for Professionals requiring robust file sync, creatives managing large media assets, and businesses needing reliable sharing.
90.3
04
Seamless storage for Apple users
iCloud provides 5 GB free storage integrated across iPhone, iPad, Mac, and other Apple devices. It offers end-to-end encryption, automatic photo and document backup, and Family Sharing options.
From Free (5 GB); iCloud+ from £0.79/monthBest for Apple ecosystem users seeking integrated backup and device sync
88.0
05
Unlimited cloud storage for Amazon Prime members
Amazon Drive offers unlimited photo storage for Prime members and flexible file storage options. It integrates with Alexa and other Amazon services, with straightforward pricing.
From Free (5 GB); Prime membership includes unlimited photosBest for Amazon Prime members and users with large photo collections
85.7
06
Self-hosted open-source cloud storage
Nextcloud allows organisations to run their own cloud storage on personal servers, ensuring complete data control and privacy. It offers file syncing, sharing, and collaboration without external dependencies.
From Free and open-source; Enterprise support from CustomBest for Enterprises and privacy-conscious users requiring data sovereignty
83.3
07
Cloud backup and storage for Synology users
Synology C2 integrates with Synology NAS devices for hybrid cloud backup. It offers flexible storage plans and strong encryption, ideal for users wanting hybrid cloud and local storage.
From Free (limited); Standard plans from £2.49/monthBest for Synology NAS owners and users requiring hybrid cloud backup
81.0
08
Enterprise content platform with advanced governance and security
Box is a content management and collaboration platform designed for enterprises. It offers advanced security, workflow automation, and compliance tools for large organisations.
From £15 per user per monthBest for Large enterprises in healthcare, finance, and legal sectors requiring strict data governance and audit compliance.
78.7
09
Privacy-focused cloud storage with end-to-end encryption
Mega provides end-to-end encrypted cloud storage with privacy at its core. It offers generous free storage and strong encryption, though with more limited collaboration features.
From Free (50 GB); Pro from £4.99/monthBest for Privacy-conscious users and those seeking maximum encryption
76.3
10
Zero-knowledge cloud storage for sensitive data
Tresorit is a security-first cloud storage provider offering zero-knowledge encryption and Swiss hosting. It targets privacy-conscious individuals and businesses handling sensitive information.
From Basic from £8/month; Family from £144/yearBest for Users handling highly sensitive data requiring zero-knowledge architecture
74.0
Frequently asked questions
How much free cloud storage do the top providers offer?
Google Drive offers 15 GB free, Mega provides 50 GB free, whilst Microsoft OneDrive, iCloud, and Amazon Drive each offer 5 GB free. Dropbox provides only 2 GB free but compensates with superior sync technology.
Which cloud storage is best for business collaboration?
Google Drive excels for real-time collaborative document editing, whilst Microsoft OneDrive integrates seamlessly with Office 365 for enterprise users. Dropbox is ideal for file synchronisation and sharing across teams and creative professionals.
What is the difference between end-to-end encryption and regular encryption?
End-to-end encryption (offered by Mega, Tresorit, and iCloud) means only you and intended recipients can read files; the provider cannot decrypt them. Regular encryption protects files in transit and at rest but the provider retains decryption capability.