Sending a file to a client sounds simple until it is too large for email, access should last only a few days, or the folder contains material that should not be forwarded. For UK businesses, the best choice is the one that gives the right people convenient access without making permissions difficult to manage.
The best file sharing software in the UK depends on the job. A Microsoft 365 business may already have an excellent option in OneDrive and SharePoint, while an agency sending finished assets to clients may prefer Dropbox. Privacy-focused teams may value end-to-end encrypted sharing from Proton Drive or Tresorit.
What to compare before choosing file sharing software
Start with the way files move through your business. Team file sharing is different from delivering a finished document to a customer. Internal work often needs shared folders and dependable syncing. Client sharing is more likely to need simple links, view-only access, expiry dates and quick revocation.
For secure file transfer, useful controls include restricting a link to named people, choosing view or edit permissions, adding a password, expiring a link and preventing downloads where supported. Admin controls also matter when employees and contractors join or leave.
Large file sharing deserves separate attention. Consider upload limits, desktop syncing, folder sharing and whether recipients need an account. Video, photography, design exports and archives can expose weaknesses that are not obvious when a service is used only for documents.
Best options for UK teams and clients
Microsoft OneDrive and SharePoint: best for Microsoft 365 workplaces
For businesses already using Microsoft 365, OneDrive and SharePoint are usually the most practical starting point. OneDrive handles individual work files and straightforward sharing, while SharePoint is better suited to team libraries and shared company content.
Microsoft supports different link scopes, including specific people, people in the organisation and, where administrators allow it, anyone with the link. Admins can restrict external sharing options, which is valuable when several departments handle confidential material.
Google Drive: best for collaborative client work
Google Drive is a natural fit for teams working heavily in Docs, Sheets and Slides. Files can be shared as Viewer, Commenter or Editor, while Google Workspace shared drives keep team files under shared ownership rather than leaving important documents tied to one employee.
Organisations can also enable visitor sharing so people without Google accounts can collaborate after verifying their identity. That is useful for agencies and project teams that need clients to review material without opening the whole workspace. If collaboration is the main goal, Drive remains one of the most capable file sharing tools UK businesses can use, alongside a broader cloud storage comparison.
Dropbox: best for straightforward external sharing
Dropbox is particularly strong when the recipient experience matters. Business-oriented plans support controls such as passwords, expiry dates and disabling downloads for shared links. That makes it useful for proposals, reports, creative assets and other deliverables that should remain available only for a defined period.
Proton Drive: best for privacy-focused sharing
Proton Drive is worth considering when confidentiality matters more than deep office-suite integration. It offers end-to-end encrypted sharing and supports shareable links with password protection and expiration dates. Access can also be revoked later.
That combination suits professional teams sharing contracts, reports or confidential project files. It may not offer the same breadth of workplace integrations as Microsoft or Google, but its privacy-first approach is a clear reason to choose it.
Tresorit: best for security-first organisations
Tresorit takes a security-focused approach to cloud file sharing. Its end-to-end encrypted shared links can use passwords and expiration controls, with additional options such as limiting opens, restricting viewers and tracking access depending on the setup.
It is a strong candidate for organisations that routinely exchange commercially sensitive material and want tighter control over external distribution.
A practical way to choose
Imagine a small UK design agency delivering a brand package. Several people collaborate on working files, freelancers contribute, and the final folder contains large artwork exports. The agency needs a controlled internal workspace during production and a clean external hand-off for the client.
If it already uses Microsoft 365, SharePoint and OneDrive can cover both jobs. A Google Workspace agency could use a shared drive for production and restricted Drive access for review. If the client only needs final assets, Dropbox may provide the simpler hand-off. For confidential pre-release work, Proton Drive or Tresorit may be preferable.
A useful test is to create a trial folder, share it with an email address outside your company and check exactly what the recipient can see, download, edit and re-share. Then revoke access and confirm that the link no longer works. This simple test often reveals more than a long feature checklist.
Security habits matter as much as the software
Even a strong platform can be undermined by careless sharing. Prefer named-recipient access for confidential files, use expiring links for temporary client deliveries, and avoid leaving public links active indefinitely. Review externally shared folders when projects end and remove access that is no longer needed.
Keep long-term storage and temporary transfer separate in your planning. A service may be excellent for delivering a large file but less suitable as the permanent home for business records. Related guidance on business backup software and team collaboration tools can help complete the wider setup.
Frequently asked questions
What is the best file sharing software for a small UK business?
For many small businesses, the best option is the platform already included in their working environment. Microsoft 365 users should start with OneDrive and SharePoint, while Google Workspace users will often find Drive simplest. Dropbox is attractive for frequent client delivery, while Proton Drive and Tresorit suit privacy-led requirements.
Is file sharing software safer than emailing attachments?
It can be. A controlled sharing link can often be revoked, restricted to specific people or set to expire. An email attachment, once downloaded or forwarded, is much harder for the sender to control. The benefit depends on using the available permission settings correctly.
Which service is best for large file sharing?
Dropbox is a convenient all-round option for large folders and client delivery, while OneDrive and Google Drive work well when large files are part of an ongoing team workspace. Check current file-size limits, storage allowance, syncing needs and recipient requirements before choosing.
Do clients need an account to receive shared files?
Not always. Several platforms support link-based access for external recipients, although identity checks and available permissions vary by service and administrator settings. Test the exact sharing mode you plan to use before making it your standard client workflow.
Choosing the right fit
There is no single winner for every UK business. OneDrive and SharePoint are strongest for Microsoft-centred teams, Google Drive excels at collaborative work, Dropbox is excellent for external sharing, and Proton Drive or Tresorit make sense when privacy and controlled access carry more weight.
Choose around the real hand-off: who sends the file, who receives it, how long access should last and what the recipient should be allowed to do. Once those answers are clear, the right software becomes much easier to identify.