Online File Server

Enhance On-Premise File Servers with Hybrid Online File Servers.
Remote File Server Access and Secure File Sharing for Business Made Easy!

Online File Server

Trusted by 1000+ IT Solution Providers & Enterprises

Client Testimonials

CentreStack customer service has been fantastic. When we do run into issues, they are very responsive, and they have been able to resolve any issues very quickly.

I wish I had done it sooner. It has been a fantastic product. Those worried about data in the cloud - use their expertise and software to get your servers up.

CentreStack is the best file server replacement solution on the market. They aren't just leading the market, but they created a new market.

Are you looking for an online file server with these values?

Enable Mobile Workforce

Quickly enable the mobile workforce to work from home and remote locations?

No User Training

Simple cloud drive mapping for remote access to Windows file servers and inter-office collaboration?

Smooth Transition

Reduces costs with simplified migration and retirement of traditional file servers in a smooth transition?

Best of Both Worlds

Combines Windows file server security and control with the cloud's ease of use and productivity?

Easy Setup

Has a more straightforward permission migration and configuration strategy than SharePoint, Dropbox, or Google Drive?

Inherit Permissions

Combines NTFS permissions, Active Directory users, and drive mappings with remote access from any device?

Hybrid On-Premise

Maintains data privacy by providing the option to keep data on-premises in traditional file server shares or private online storage?

Data Protection

Maintains data privacy by providing the option to keep data on-premises in traditional file server shares or private online storage?

Looking for an online file server?

CentreStack adds cloud file services to an on-premise file server with remote access, secure file sharing, and data protection capabilities while retaining the old security safeguards, permission controls, and data ownership! It combines the online file sharing productivity and the on-premise IT infrastructure's security into one solution.

check out the incredible

CentreStack Solution

CentreStack adds secure remote access and file sharing, disaster prevention, and recovery to file servers on-premises with easy cloud migration to private cloud storage. It is the real cloud file server solution you have been looking for!

Remote Access

CentreStack bridges file servers and cloud storage for secure remote access without a VPN.

Disaster Recovery

CentreStack turns cloud storage accounts into a central cloud file repository with version control, file change history, and audit tracing to provide business continuity for file servers.

Mobile Sharing

CentreStack leverages cloud storage for secure mobile file sharing from a web browser or a mobile application.

Cloud Migration

CentreStack sets up a hybrid deployment between local file servers and cloud storage to migrate to cloud-only later.

Problems Solved by Online File Servers

CentreStack is the hybrid online file server solution for you to simplify remote access, online file sharing, and file server management!


Simplify remote access to file servers from mobile devices, PCs, Macs, and web browsers.


Reduce server replacement costs. Eliminate management costs of file servers and VPNs.


Avoid the headaches of data sets split between internal file servers and cloud solutions like Dropbox.


Avoid the cost of manual files and folders replication or recreation of NTFS permissions.


Avoid the management headaches of cross-site replication and simplify collaboration with remote offices.


Eliminate threats from de-centralized security and personal Dropbox and other 3rd party accounts.

Security vs. Mobility?

CentreStack addresses traditional file server challenges faced by CIOs

Security + Mobility

Traditional file servers typically provide fast local access with secure access controls but can be expensive to maintain and difficult to access from mobile devices. And enterprises may find file sharing between remote offices challenging using traditional methods. CentreStack provides the ability to store, share, access, and backup files using an online file server to synchronize with local storage. This solution offers the best of both worlds. It provides a Windows file server's speed and security without the setup costs and administrative overhead of traditional file servers.

Data Privacy & Governance

CentreStack takes this one step further by providing the option to set up a hybrid Online File Server without migrating data or changing workflows! This private, secure file sharing is critical for organizations that want to maintain data privacy by keeping data on Windows File Servers but face the challenges of providing secure remote access, external sharing, and online collaboration. With the prevalence of ransomware and other cyber threats, enabling Server Message Block (SMB) shares access over a VPN can expose inherent security vulnerabilities to malware that make traditional file sharing risky. And SMB drive mapping over a VPN can also be relatively slow since it was suitable for local file drive mapping.

Hybrid Online File Server Use Cases

CentreStack's ability to utilize standard letter-drive mappings for cloud storage simplifies adoption, access, and centralized collaboration. Many other solutions offer savings and productivity boost from cloud file sharing (e.g., Egnyte and Dropbox). Still, CentreStack provides the unique ability to create your cloud-based file server with custom branding while retaining complete control of the storage and servers involved. CentreStack is also unique in its deep integration with NTFS and Active Directory and creating a hybrid cloud file server environment that preserves drive mapping, file locking, and familiar permission control user experiences.

Remote Access To File Shares Without a VPN

Easy remote access to file server network shares with a mapped drive and without a VPN.

Mobile Device Access to Hosted File Shares

Web browser-based access and mobile application access to data-center hosted file server network shares.

Online File Server Feature Highlights

CentreStack eliminates the common drawbacks of remote file server access and file sharing solutions and provides the best of both worlds – the security and control of on-premise file servers combined with the efficiency and productivity gains of remote mobile access.

Drive Mapping

Remotely access file shares from a drive letter without the need for a VPN. Cloud replication is optional!

Folder Permissions

Granular folder permissions can mirror NTFS permissions or get created natively.

On-Demand Sync

Minimize storage and bandwidth consumption by automatically syncing and caching only the files you need.

Active Directory

Preserve NTFS permissions and Active Directory identities when connecting file servers to the cloud.

Endpoint Security

Encrypt remote agent caches or revoke remote agent access privileges from a central management console.

File Locking

CentreStack provides full support for file locking from the cloud, with a familiar file server locking experience.

"Why haven't I found this before?!"

Deploy CentreStack in a real production environment.


Hybrid File Servers

Migrating file shares to online storage with bi-directional synchronization to set up a hybrid file server:

01 Cloud Server Agent installed to migrate file shares
02 File shares accessed directly by legacy apps and users
03 Replicate folders, permissions, and users to online storage
04 Access remotely from mobile devices, mapped drives, and web browsers
05 Operate in hybrid mode indefinitely
06 Retire traditional file servers when ready


File Server as the Cloud

Remote and mobile access to network file shares over HTTPS secure channel directly:

01 Self-hosted file server on-prem or in a data center
02 Install CentreStack on the same network as the file server
03 No data replication to third party locations
04 Access remotely from mobile devices, mapped drives, and web browsers
05 Remote access with existing NTFS and Active Directory security
06 Maintain existing data privacy and compliance

The Online File Server Benefits!

CentreStack can either install agent software on your file server or directly mount network shares from your file server network share when direct access is available. It intelligently manages local and cloud storage to provide a range of cloud enablement options.

Active Directory security and NTFS permission models are also maintained as if nothing changed. Users get a familiar drive letter to access files from remote locations with distributed file locking to prevent collaboration collisions.


Retire File Servers

Businesses find themselves having to purchase new file servers every few years. Migrating file shares to the cloud with CentreStack can eliminate these capital expenditures. Users can continue to work on the existing file shares without disruption, and the file server can be retired once the migration is complete.

Remote Access and File Sharing

Simplify remote access and file sharing with familiar interfaces on any computer or device. Windows and Mac desktops display natively mapped drives in Explorer and Finder. That same experience is presented on iOS and Android devices like iPads, iPhones and Pixels or from popular web browsers like Chrome and Firefox.

Simplify File Sharing

Easily collaborate with business partners by providing them with access to a limited set of internal files or folders. Share files with non-AD users while maintaining administrative controls. Simplify multi-site collaboration with automatic version controls and file locking.

Reduce Costs by Replacing VPN

Eliminate the overhead and support tickets commonly associated with VPN file sharing, Always On VPN, or Direct Access. Automatically use existing users and permissions to save setup time and money. Having an always-on mapped drive helps end-user experience too.

Simplify Server Management

Eliminate the need to manage servers on-premises by retiring them to the cloud. Centrally manage users, access controls, and storage for each tenant. Easily keep track of where the data is, who has access and how it’s shared.

Centrally Manage Permissions

For complete control and visibility, manage granular permissions from the file server that was their source or natively with CentreStack. If the file server is retired, CentreStack becomes the new permissions master.

Maintain Compliance

Centrally manage users, access controls, and storage for each tenant. Easily keep track of where the data is, who has access and how it’s shared. Admins can perform audits of GDPR and HIPAA compliance or keep track of any changes made to individual files.

Increase Productivity

Provide an always-on mapped drive that works anywhere on any device and allows mobile users to access internal file shares or cloud file servers easily. Web browser-based file access and mobile applications on iOS and Android devices also help mobility and productivity.

Centrally Manage Users

Centrally manage users, access controls, and storage for each tenant. Easily keep track of where the data is, who has access and how it’s being shared.

Reduce Bandwidth and Storage

Use on-demand synchronization to reduce bandwidth usage and endpoint storage consumption. Files are only synced to the endpoint when used, so you don't have to purchase large disks for endpoint devices and don't create network sync storms.

Manage Multiple Tenants

CentreStack provides a multi-tenant, white-labeled platform that makes it easy for MSP partners to build a private online file server solution based on infrastructure from Amazon, Azure, or Google.

Maintain Data Privacy

CentreStack can use your file server as a private cloud to prevent replication to third party data centers for data privacy, security, and control. Or you can use storage from a private cloud. In either case, CentreStack provides a better alternative to Dropbox and SharePoint when you care about data privacy, control, data sovereignty, or legacy access.

Business Continuity with Hybrid File Shares

As a second option for deployment, the file server content will be migrated over time to cloud storage for the attached local folders. When it is an enabling method for online access, it is also a backup process happening in the background to provide business continuity functionality.

Create a Global Workspace

You can attach local folders from different file servers to your CentreStack account. Doing so creates a global namespace directory structure unifying the other file servers into a single folder structure, enabling multiple-site collaboration. Thus, it forms a distributed file system in the cloud.


Ready to boost mobile productivity and enable workforce to work from home today?