Best Free SFTP and FTPS Servers for 2020 copy

SFTP Servers

SFTP is an acronym for SSH File Transfer Protocol. Transferring files through an SFTP server is one of the safest ways to transmit data online. With an SSH FTP server tool, you can transfer files securely over an encrypted SSH connection.

Encrypting files with an SFTP server can prevent unauthorized access (which can help with things like HIPAA compliance). Many SFTP servers come bundled with SCP, which also protects files via SSH.

FTPS Servers

FTPS is an acronym for File Transfer Protocol over SSL, another secure alternative that lets you encrypt FTP transfers with SSL.

Many products combine FTPS and SFTP servers into one software program so you can choose the type of protection you need when transferring files. In this guide, we’re going to look at the top SFTP and FTPS servers on the market.

Here is our list of the best FREE SFTP and FTPS server tools:

  1. EDITOR’S CHOICE A cloud-based file platform with a built-in FTP and SFTP server designed for transfers, file sharing, archiving, and backup. Perfect for team shared file collaboration and scales according to your needs. Start a 7-day free trial.
  2. ExaVault (FREE TRIAL) This is a hosted FTP system. This tool mediates all of your transfers, creating a hub from which you can send out multiple copies with just one upload. Start a 30-day free trial.
  3. SolarWinds SFTP/SCP Server (FREE TOOL) Our top pick for SFTP file transfers with support for SFTP/ SCP file transfers up to 4GB. Use this Windows tool to transfer multiple files simultaneously, manage user accounts, and more.
  4. SolarWinds Serv-U Managed File Transfer Server (FREE TRIAL) Secure FTP server that supports SFTP, FTPS, and FTP, drag-and-drop file transfers, and more for Windows and Linux.
  5. FileZilla Server FTP tool for Windows, Linux, and macOS that supports FTP & FTPS file transfers (FTP over TLS/SSL).
  6. IIS FTPS Server Free FTP server included with Internet Information Services (IIS).
  7. Server HIPAA compliant SFTP and FTPS server that supports FTP, SFTP, and FTPS.
  8. CrushFTP FTP server for Windows with support for SFTP, FTPS, SCP, and HTTPS.
  9. Couchdrop SFTP A cloud service that includes SFTP, SCP, Rsync, FTP, and WebDAV file transfer methodologies to connect to cloud storage systems.
  10. Rebex Tiny SFTP Server A Windows-based secure replacement for TFTP that is very easy to install. Good for basic file sharing and secure distribution of device configuration images.
  11. OpenSSH A Collection of command-line tools for Linux that comes with an SFTP server.

Note: We’re covering software for Windows Server and Linux Servers here. If you are looking for FTP or SFTP client software, check out The Best FTP and SFTP Clients for Windows and Linux

See also: SFTP Commands Cheat Sheet

The best free SFTP and FTPS server tools

Our methodology for selecting SFTP and FTPS server software

We reviewed the SFTP and FTPS server market and analyzed the options based on the following criteria:

  • An easy-to-use GUI interface
  • A facility to run scripts that automate file management tasks
  • The ability to work with cloud platforms as well as onsite resources
  • Integrations with widely-used business applications
  • File activity logging
  • A free assessment period or money-back guarantee
  • A mixture of free, paid, and open-source tools
  • Value for money that reflects the facilities offered by the utility

We’ve also reviewed as many as we could find, rating each one on factors including; easy-to-use software clients, multiple transfer capabilities, user authentication, and more.

All the leading operating systems are covered, including Windows, Mac, and Linux. We’ve included .


Files - Users view is a cloud-based file platform with a built-in FTP and SFTP server. Being based on a remote server, this service is able to offer many more features than a traditional SFTP server. The system comprises of cloud storage that acts as a buffer for all file activities.

Key Features:

  • FTP and SFTP file transfers
  • Data storage capacity
  • Two-factor authentication
  • Scalable pricing structure

Why do we recommend it?

The service encourages you to upload files onto the provider’s cloud platform and email out links instead of sending out copies. The advantage of this strategy is that it allows your company and each individual user to maintain control over how those files can be accessed and revoking permissions means that the former recipient doesn’t get to keep a copy of the file. All transfers, storage, and viewing are protected by encryption. can operate with FTP and SFTP in three different ways.
  1. itself can operate as an inbound FTP and SFTP server, allowing you and your users to connect to your account via SFTP. This allows you to use SFTP to access any portion of your account, even folders that are syncing to other providers, such as Amazon S3, Google Cloud Storage, Azure Blob Storage, Box, Dropbox, Wasabi, etc.
  2. You can Mount an external FTP or SFTP site directly into as a folder. acts as an FTP or SFTP Client in this context, making that SFTP site available via the web interface, API, SDKs, and even other inbound SFTP connections.
  3. You can configure a scheduled Sync, where will synchronize its copy of a folder or folders on a one-way or two-way basis with the external FTP or SFTP server.

Businesses can use as a pass-through when sending files to outsiders, storing a backup on the server in case of loss. It can also be used as a collaboration file storage – enabling several users to access and edit a document. Given that files can be left on the server, it can also be used as a backup service for important system files. supports Single Sign On (SSO), Two Factor Authentication (2FA), Data Locality, Data Retention Management, Management Delegation, Audit Trails, Non-Repudiation, HIPAA, GDPR, and everything else needed for a secure and compliant Cloud Managed File Transfer solution.

The security offered by enhances transfer protocols because it enforces two-factor authentication for file access and uses the typical SFTP -strength protection for files during transmission.

File devices is a subscription service with a charge levied, per user, per month. The service is offered in three plan levels: Starter, Power, and Premier. The Starter plan requires a minimum of 5 users and provides a throughput of 1 TB per month. The Power plan includes a data throughput limit of 5 TB per month and requires a minimum of 15 users. The top plan, Premier, offers a data throughput capacity of 5 TB per month a caters to at least 25 users. is available for a 7-day free trial, which can be extended on request.

Who is it recommended for?

Although there is a requirement for a minimum number of user accounts, which is five, the per-user charging of is a very scaleable service that is accessible to businesses of all sizes. The integration of the Microsoft 365 productivity suite and collaboration features means that this is a good cloud drive option for distributed teams and virtual offices.


  • Cloud-based service with no lengthy onboarding process or complicated setup
  • Cloud storage provides scalable storage and features without needing an on-premise setup
  • Support file redundancy and backup
  • Integrates well with other services like Dropbox or Google Drive, giving it more flexibility than similar products
  • Takes security seriously, enforces 2FA
  • Subscription-tiered pricing makes this an accessible solution for any size business


  • The platform offers many different features, which can require a time investment to learn them all

EDITOR'S CHOICE is our top choice of SFTP Service! It offers a very flexible and scalable solution to file sharing as well as a very fast file-transfer service. is a good choice for media companies that often need to transfer very large files because it can securely move files of up to 5TB.

Large file transfers can be prone to failure, so the fewer times you need to actually move a file, the more time that you save. allows files to be distributed widely and securely with just one transfer per file through the SFTP protocol.

Official Site:

OS: All platforms, cloud-based

2. ExaVault (FREE TRIAL)

ExaVault Session Logs

ExaVault is a cloud service that mediates file transfers, offering SFTP and SFTP as secure solutions. The system enables administrators to keep track of file movements and automatic logging gives you the records you need for compliance auditing.

Key Features:

  • User accounts
  • Secure transfers
  • Protected storage
  • File sharing
  • Link forwarding

Why do we recommend it?

ExaVault is a very similar service to and you will have trouble devising between the two. Both offer secure transfers and storage and promote discretionary file sharing. The tools also both include an integration with Micorosft 365. In the field of workflow automation, both systems can be used with Zapier to create third-party orchestration with other applications.

The ExaVault service is flexible and it can be put to a range of uses. You can use ExaVault with any secure FTP client and activate process automation features in the platform to create flow through for authorized transfers. The system can also be used as a primary store of business documents because it promotes collaboration through a file sharing mechanism. The service is offered in packages that provide different volumes of cloud storage space.

Employees can cut network and internet traffic by uploading a file for distribution and then emailing out links to the file instead of transferring many copies. The link access system provides stronger permission controls and also includes activity tracking.

ExaVault Home Folders

ExaVault is offered in four plans with increasing amounts of storage and user account allowances. The lowest plan includes 1 TB of storage space and is suitable for 10 user accounts. It is possible to set up a general admin account for automated processes that won’t be accessed directly by any individual. This service is offered on a 30-day free trial.

Who is it recommended for?

ExaVault is suitable for small businesses that need more than five user accounts. The system is charged on a monthly subscription per user so it is very easy to increase or decrease capacity in line with your staff headcount. The integration of an email inbox in the ExVault cloud system means that it can be a useful part of your business continuity plan.


  • Secure file transfers with SFTP and FTPS
  • Protected data storage
  • Multi-factor authentication for user account access
  • Transfer files or folders manually or with automated workflows
  • User-driven permissions sharing


  • No free tier

ExaVault is a great option for businesses that don’t want to bother running their own servers. This system is particularly useful if you operate a virtual office with a distributed workforce. The ExaVault system can be used as a common platform for file sharing as well as a file transfer mediator. The service includes security procedures to keep your data safe and it is GDPR compliant.

Register for a 30-day free trial:

OS: All systems, Cloud-based

EaxVault Start 30-day FREE Trial

3. SolarWinds SFTP/SCP Server (FREE TOOL)


SolarWinds SFTP/SCP Server is a free SFTP server that can complete SFTP and SCP file transfers up to 4GB. With SolarWinds SFTP/SCP Server you can conduct multiple transfers across lots of devices simultaneously. You can also select which version of SSH you want to use (whether SSH1 or SSH2). The platform is ideal for users looking to complete tasks like pushing out OS and firmware updates.

Key Features:

  • SFTP and SCP transfers supported
  • Supports SSH1 and SSH2
  • User authentication
  • Concurrent file transfers
  • Supports transfers up to 4GB

Why do we recommend it?

SolarWinds SFTP/SCP Server is a great choice, above all because it is free. Many free tools are not very good but this one comes from SolarWinds, which is a trusted and well-supported provider. This tool also enforces user credentials for access and provides strong encryption, so it is suitable for use on maintenance tasks that might include the transfer of mission-critical settings and it can also be used to protect the transfers of sensitive files up to 4 GB in size.

To control access to your files, you can create user accounts. Configuring user authentication details lets you determine who can access your files. You can add new users by entering a Username and Password in the Users section. The process is simple, so it’s easy for new users to start managing employee access to the server.

If you want additional security, then you can limit the operations that are permitted on the server. You can select a list of operations that the server will allow including Upload File, Download File, Delete File, Rename File, List Directory Contents, Create Directory, Delete Directory, and more. You can also choose what protocols you will allow.

SolarWinds SFTP/SCP Server provides you with everything you need to start managing SFTP and SCP file transfers with a simple user interface. You can download the software for free.

Who is it recommended for?

This secure file transfer system can have many applications. However, you will find that this is the utility that you have been looking for to distribute configuration files to remote devices. The system can be used as a secure replacement for TFTP when updating firmware on IoT devices and the system is able to interface with iOS.


  • Completely free SFTP server
  • In-depth user authentication options
  • Can set limits based on events such as deleting, uploading, and downloading – great for larger teams


  • Is designed more for a technical audience, with an abundance of features and customization options

SolarWinds SFTP/SCP Server offers a complete SFTP solution that can fully support most enterprises. The multiple file transfers offered by the tool and the 4GB limit is more than ample to get you started.

While the software doesn’t have a fancy GUI or tons of bells and whistles, this is an advantage for new users, because it makes the system easier to navigate. SolarWinds SFTP/SCP Server is only available for Windows.

Related Post: SolarWinds SFTP/SCP Server Review

OS: Windows

4. SolarWinds Serv-U Managed File Transfer Server (FREE TRIAL)

SolarWinds Serv-U Management Console

SolarWinds Serv-U Managed File Transfer Server is one of the most versatile FTP Servers on the market. The software supports FTP, FTPS, and SFTP transfers. You can use the tool to connect to multiple FTP clients and servers at once and conduct multiple file transfers simultaneously. The user interface itself is easy to use, but a little more complex than SolarWinds SFTP/SCP Server.

Key Features:

  • FTP, FTPS, and SFTP file transfers
  • Drag-and-drop file transfers
  • Concurrent file transfers
  • Automatic folder synchronization
  • Connect to multiple servers concurrently

Why do we recommend it?

You would need SolarWinds Serve-U Managed File Transfer Server if you regularly transfer many files to many destinations. This is a service for sending out files simultaneously to get information out to many destinations quickly. It can also implement folder synching for constant availability and there is a scheduled file transfer option for regular unattended actions.

Features like search bars assist you to find the content you’re looking for. Managing file transfers is also very intuitive. You can Pause, Resume, Cancel, Remove, or Remove all transfers while they’re in progress. You can also view a list of file transfers that show the name of the file, when the transfer was completed, and the source path.

Conducting file transfers themselves is simple enough as you can drag-and-drop files from your desktop straight into the program. There is also a scheduling feature you can use to determine when transfers will occur ahead of time. Likewise, you can automatically synchronize folders so that you don’t have to consistently manage content on the client manually.

SolarWinds Serv-U Managed File Transfer Server is a tool that provides a modern SFTP and FTPS transfer solution. The easy-to-use GUI and automated features make the platform one of our top picks. You can download the program for a 14-day free trial.

Who is it recommended for?

A business that has a heavy file transfer requirement, such as a public relations firm or an outsourced file processing service would benefit from the Serv-U package. System administrators that have a lot of devices to manage and need to transfer configurations far and while periodically over secure connections would also benefit from this service.


  • Supports FTP, FTPS, and SFTP file transfers, making it a more flexible option than some of its competitors
  • Robust search features are ideal for large file transfers over long periods of time
  • Built with the enterprise in mind
  • Supports drag and drop transfers, making it an easy option for end-users
  • Built-in schedule works well for EDI and other regular transfers


  • Would like to see a longer trial period for testing

SolarWinds Serv-U Managed File Transfer Server is our runner-up on this list as it offers enterprises an FTPS and SFTP server in one tool. You can automate the management of file transfers which is invaluable to users trying to send files back and forth across an entire team.

With the help of drag-and-drop functionality and folder synchronization, you can’t go wrong managing file transfers with SolarWinds Serv-U Managed File Transfer Server. The software is available for Windows & Linux.

Start 14-day Free Trial:

5. FileZilla Server

FileZilla screenshot

FileZilla, well known for their popular cross-platform FTP client tool, also provide an a server for download that supports FTP and FTPS (FTP over TLS/SSL). FileZilla Server supports files up to 4GB, giving it the bandwidth to support the needs of most organizations. On the whole, the platform is easy to configure. To start you need to connect to a server with your login credentials and then you can view a list of files and directories.

Key Features:

  • Supports FTP and FTPS (FTP over TLS/SSL)
  • Supports file transfers up to 4GB
  • Drag-and-drop support
  • Search for files
  • Available on Windows, Linux, and Mac OS

Why do we recommend it?

FileZilla Server is part of a free suite of file transfer services along with a companion client utility. You aren’t limited to using these two tools together, you can use any other FTP client with the FileZilla Server and any other FTP server with the FileZilla Client. FileZilla is easy to use and is great for ad-hoc secure transfers.

The layout is very intuitive to navigate. Under the Quickconnect bar, you can view a message log that gives you status information on file transfers throughout your environment. Under that section, the left column shows local files and directories, and the right column displays files and directories on the server you’re connected to. Being able to compare the two side-by-side makes it easier to know what transfers you need to complete.

Drag-and-drop allows you to add files into FileZilla to transfer. You can view a list of files being transferred in the Queued files section at the bottom of the screen. If you want to cap the number of transfers taking place then you can configure transfer speed limits.

FileZilla Server is one of the top FTP and FTPS servers in the world because it offers a basic client to manage file transfers with excellent visibility and controls that make sure you have all the data you need where you need it. You can download FileZilla for free.

Who is it recommended for?

FileZilla Server runs on Windows, macOS, and Linux and it’s free, so there is a very wide market for the tool. The system offers secure transfers with FTPS and it is very easy to use, so staff who are frequently called upon to transfer or receive files will need to be issued with this on-device tool.


  • Completely free tool
  • Easy-to-use interface
  • Available cross-platform for Windows, Linux, and Mac OS
  • Supports drag and drop transfers


  • Could benefit from automatic synchronization
  • Lacks in-depth scheduling features found in other tools

FileZilla Server is a top pick amongst enterprises that want a cross-platform secure FTP solution. FileZilla is suitable whether you’re conducting FTPS or FTP file transfers.

The tool can be installed and configured very quickly, so you can start managing your files almost immediately. FileZilla supports multiple operating systems including Windows, Linux, Mac OS, meaning that it can adapt to almost any environment.

6. IIS FTPS Server


IIS FTPS Server is an FTPS server that’s included out-of-the-box with Windows server. IIS FTPS Server supports FTP transfers with TLS/SSL encryption. To find the server all you need to do is go to the Windows Server Manager dashboard and open up the Add Roles and Features wizard, go to the Role Services page and check the FTP server option. You can then install the server.

Key Features:

Why do we recommend it?

If you are running Windows Server, you already have the IIS FTPS Server. This tool is integrated with the IIS Web server, so the use of this secure file transfer system as part of a website or for the regular transfers that your site requires for maintenance is an obvious connection. The user authentication system in this tool can be sourced from Active Directory.

Inside IIS you can go to Sites and click add FTP site to start configuring the server. For FTPS, you can configure connections to require an SSL certificate to protect your file transfer content.

IIS FTPS Server is worth a look if you’re already using IIS. It is worth noting that you will need to obtain (or create) a TLS/SSL certificate to conduct secure transfers. You can view more information about how to activate IIS FTPS Server here.

Who is it recommended for?

If you have Windows Server, you can easily get IIS FTPS Server up and running. This is a free service that integrates seamlessly with all of the other utilities that are built into the operating system.


  • Already a part of Windows Server
  • Can utilize Active Directory for permissions


  • Requires Windows Server if you don’t already have it in place
  • Must obtain a TLS/SSL certificate for secure connections
  • Not beginner friendly, designed for system administrators

IIS FTPS Server is a good choice for users who have Internet Information Services (IIS). However, it does take more configuration than many of the other tools on this list. If you don’t have IIS then we recommend that you look at one of the other FTPS server alternatives on this list. IIS FTPS Server is available for Windows.

7. Server

Syncplify_me Dashboard Server is an SFTP and FTPS server for Windows that supports FTP, SFTP, FTPS, and is compliant with HIPAA regulations. Server supports up to 5,000 concurrent clients. The platform has been designed for high availability so you can deploy 2 SFTP server nodes. If one node goes down then the other will still be available, which reduces the chance of disruption.

Key Features:

  • SFTP and FTPS
  • High availability
  • Create custom scripts
  • Includes Syncplify.Me Protector
  • HIPAA compliant

Why do we recommend it?

The HIPAA-compliant Server is a useful tool for secure transfers of sensitive data. You can also use this system to receive a large number of files simultaneously, which means that it is an ideal system for large organizations that regularly expect files in from members of the public of a business association. The concurrent file transfer limit of 5,000 goes far beyond the requirements of a single business for internal use.

One of the features that makes Server stand apart from many other competitors is its extensibility. You can create custom scripts to add new functions. Scripts give you complete control over the file management process enabling better integration with your daily operations. Protector comes included with Syncplify.Me Server. Protector is an intrusion detection system that uses AI to identify cyberattacks automatically. Syncplify.Me Protector identifies attackers and then adds them to a blacklist so that they can’t connect to the server. The intrusion detection system offers an extra layer of security against cybercriminals. is a must for companies that want a secure SFTP or FTPS server. It’s one of the most protected offerings on the market.There is an Evaluation version of Server, which has limitations on its functionality and use – you aren’t allowed to use it for business purposes. Paid versions start at $299 (£229). for an unlimited number of users and concurrent connections. Download the free Evaluation version.

Who is it recommended for?

This tool is useful for public services or other institutions that deal with the public and expect a large number of sensitive documents to be transferred in or manage an office user community that constantly sends out files to associated businesses or members of the public. A scripting system means that your DevOps teams can add on user validation routines, automated responses, and file processing.


  • Offers HIPAA-compliant file transfer options
  • Supports multiple transfer protocols like SFTP, FTP, and FTPS
  • Can scale to 5000 clients, ideal for heavy enterprise use
  • Clutter-free user interface


  • Can have a sharp learning curve for newer users Server is a top choice for users who want an SFTP and FTPS server on Windows that’s HIPAA compliant. It’s also one of the securest offerings on the market from a security standpoint due to the inclusion of Protector.

If you’re looking for a tool that not only offers a convenient file transfer experience but also has the inbuilt security to give you and your users peace of mind then Server is a great option. The product is available on Windows only.

8. CrushFTP

CrushFTP Server Dashboard

CrushFTP is an FTP server for Windows, macOS, and Linux that supports SFTP, FTPS, SCP, and HTTPS. With CrushFTP you can manage file transfers through a web-based user interface. Here the user can view previews of any images, PDFS, videos or documents on the server. Previews enable you to see the content of a particular file from a glance.

Key Features:

  • Supports SFTP, FTPS, SCP, and HTTPS
  • Create custom user forms for your site
  • Create reports
  • File synchronization
  • Alerts

Why do we recommend it?

CrushFTP is a cross between the mediated file transfer platforms such as and ExaVault, and managed file transfer systems, such as SolarWinds Serv-U. This hosted service lets you create interface forms that validate users and allow self-service of files. It also enables you to create access to files through a Web-based viewer that eliminates the need for the transfer of data.

To manage user access, you can create custom forms for users when they visit your site. For example, you can ask for additional information about file uploads. Users also have the option to retain control over files or files and enable others to have temporary access. Temporary access can be sent out via email and remains available for a specific time period. However, administrators can still step in to control the type of content that can be shared and for the amount of time if needed.

For security, CrushFTP includes automated banning. CrushFTP monitors connection patterns and bans IPs that hammer connection, command, or password settings. Blocking malicious IPs reduces your exposure to bad actors and stops them from interacting with your server.

CrushFTP is a fit for enterprises that are searching for a secure SFTP server or FTPS server. The tool offers a 30-day free trial you can use before upgrading to a paid version. Paid versions start at $70 (£52.84) for up to 50 concurrent connections. You can download the free trial version.

Who is it recommended for?

The access management controls in CrushFTP are excellent and can be automated by integration with your intrusion detection system. You can allow one-time access to files that get delivered to a Web browser and so do not alight permanently on the recipient’s device. Businesses that want to transfer automatically generated content, such as invoices, or DSAR results would benefit from this tool.


  • Supports multiple protocols for transfer including HTTPS and SCP
  • Uses a web-based interface, allowing users to access files from any browser
  • Features a file preview option, good for PDFs and images
  • Uses behavior analysis to ban malicious behavior


  • Enterprise features are on the more expensive end of the spectrum
  • Aesthetics are a bit dated compared to other solutions
  • Not the best option if you have a large number of file-sharing partners

CrushFTP stands among the very best secure FTP server and FTPS server tools on the market. The support for SFTP, FTPS, SCP, and HTTPS makes it one of the most diverse tools in terms of support.

The mixture of top-down dashboards for visibility and automated banning to keep you safe ensures you can enjoy a productive file transfer experience. CrushFTP is available for Windows, Mac OS, Linux, Unix, BSD, Solaris, and more.

9. Couchdrop SFTP

Couchdrop SFTP

Couchdrop offers virtual file servers that can be used to mediate file transfers between endpoints. SFTP plan customers have the choice of just using the cloud servers as a file transfer bounce-through mechanism or add on cloud storage space, to create a centralized store, either for working documents or for archiving/backup.

Key Features:

  • FTP, SCP, WebDAV, and Rsync, and SFTP file transfers
  • Easy to set up
  • Includes cloud storage
  • Plans with multiple user accounts
  • Interface through other file transfer clients

Why do we recommend it?

Couchdrop is an intermediary system similar to and ExaVault. You can use it as the primary working drive for your office users or have it as a mediator for multiple transfers of the same file. The platform and the transfer processes are secured by encryption and access to files can be controlled by their owners who are accommodated with their own file space, which requires credentials for access.

Couchdrop is a New Zealand-based company and even though it doesn’t have servers in the EU the notification procedures make use of SFTP and cloud storage services that are GDPR compliant. Couchdrop is also compliant with the HIPAA regulations required for healthcare information in the USA.

The first version of Couchdrop was written to integrate with Dropbox cloud storage. The system is now also able to integrate with Google Drive, AWS, OneDrive, CloudShark, and Box, among other virtual server systems. The service also enables you to transfer files through email using SCP protection.

The file transfer system is also able to work with non-secure systems, such as plain old FTP. Users can select to transfer files with WebDAV, Rsync, and SCP as well.

The Couchdrop service is charged on a subscription basis. There are four plan levels available and the lowest of these is free forever. The free version only includes one user account. However, as it is free, an organization could just encourage each participant to open separate accounts. It includes 1 GB of hosted storage and allows 1 GB of file transfers per month.

Couchdrop is structured in three plans: Standard, Premium, and Enterprise. All plans offer a subscription rate per user per month and require a minimum of five users. The Standard and Premium plans are available for a 14-day free trial. The Enterprise plan is a custom package and you can get a 30-day free trial for that.

Who is it recommended for?

The use cases for Couchdrop are very similar to those for It is a good choice for businesses that operate a virtual office and have almost no on-premises infrastructure and a distributed workforce. It is also a good service for a business that has many branches and needs a centralized, hosted file management system.


  • Clean, minimalistic user interface keeps the home menus clutter-free
  • Integrates well with solutions like DropBox, AWS, Google Drive, and other popular cloud-based solutions
  • Supports older protocols as well as plain insecure FTP
  • Subscription package makes it affordable for all business


  • A 30-day free trial for the lower plans would be nice
  • Servers are located overseas, making it a slower cloud option for western countries

Couchdrop is a flexible intermediary between your favorite file transfer client, such as Filezilla or WinSCP through to your cloud storage account on a Microsoft Azure server, AWS, or Dropbox, among others. It is also possible to use Couchdrop as a standalone file management system, deploying the cloud storage that is included in each plan.

Users can transfer files securely with SCP or SFTP and even protect files transferred via email through the Couchdrop system.

10. Rebex Tiny SFTP Server

Rebex Tiny Sftp Server

Rebex Tiny SFTP Server is an SFTP server for Windows designed for basic file sharing. You can complete file transfers and view an activity log. The software can be deployed from a ZIP file without any long-winded configurations.

Key Features

  • Complete SFTP transfers
  • View activity log
  • No installation required
  • Available for Windows

Why do we recommend it?

Rebex Tiny SFTP Server is a free tool. It is a lightweight and secure file transfer utility that is ideal for securing the movements of small files. As the name suggests, this is a secure replacement for the Tiny File Transfer Protocol (TFTP), which is usually used for transferring configuration files to network and IoT devices.

The tool is ideal for enterprises that need a simple SFTP solution rather than a complete SFTP server. While Rebex Tiny SFTP Server is an excellent tool it is important to note that it stores passwords in cleartext.

That means you can see passwords on the main server form, making Rebex Tiny SFTP Server inappropriate for users looking for a secure solution. It’s free for personal and commercial use. You can download the software for free.

Who is it recommended for?

Network administrators are probably using TFTP to move configuration images at the moment and should replace that facility with Rebex Tiny SFTP Server. The time has gone when network administrators could rely on the security of a private network. You should ensure strong file encryption on all of your file movements even within the confines of your LAN.


  • Very easy to use, ideal for one-off transfers and mild use
  • Completely free


  • Interface feels antiquated
  • Lacks features like scheduling, user management, and reporting
  • Not the best fit for larger companies
  • Stores passwords in plain text

Rebex Tiny SFTP Server is a great lightweight SFTP server. If you want to conduct quick transfers without worrying about completing any hefty installations or configurations then this is the tool to use.

However, if you want to transfer sensitive information then the plain text disclosure of passwords is likely to be a deal-breaker. Rebex Tiny SFTP Server is available for Windows.

11. OpenSSH


OpenSSH is a collection of command-line tools for Linux that includes an SFTP server. OpenSSH was designed by the OpenBSD Project and offers users a free solution with support for SSH, SCP, and SFTP. The SSH client that comes with the software supports SSH protocol 2.

Key features:

  • Supports SFTP SSH, and SCP
  • Online documentation
  • Based in the command-line
  • Available for Unix and Linux

Why do we recommend it?

OpenSSH provides you with the security mechanism that backs SFTP. With the OpenSSH system, you can implement secure remote terminal sessions and also SFTP and SCP functions.

To interact with the software, the user must enter commands into the command line. For example, the user can issue a command that the program only usesIPv4 or IPv6 addresses. Alternatively, the user can also configure the tool to continue interrupted transfers to reduce the risk of partial or corrupted files.

As one of the most popular SSH tools, there are countless tutorials online alongside an extensive library of documentation. The abundance of online sources is invaluable for new users who want to learn more about how to use the software.

OpenSSH is recommended to users who are looking for a free SFTP server and are confident working through the command line. The OpenBSD project’s technical prowess has helped to make this one of the top tools for Linux-based users. You can download it from GitHub.

Who is it recommended for?

OpenSSH is a utility for Linux and it is accessed at the command line. That is great for the technically skilled who want to integrate secure transfers into scripts. However, if you are not highly skilled at Linux command line usage, you should probably pass on this tool even though it is free to use.


  • Open-source and transparent project
  • Completely free
  • Very flexible, designed for power users and administrators


  • Strictly a command-line tool, no GUI
  • Not beginner-friendly, requires knowledge of syntax and SFTP before use

OpenSSH is a tool for users who are confident working through the command line. It doesn’t have the fancy GUI of many other solutions, but it doesn’t need to. It gives you the bare minimum you need to transfer files and with the assistance of user manuals and documentation, new users can still get to grips with the program.

OpenSSH is available for a range of UNIX operating systems including AIX, HP-UX, Irix, NeXT, SCO, SNI/Reliant Unix, Solaris, Mac OS, and more.

SFTP and FTPS Server Q&A

Which SFTP Server or FTPS Server software is Best?

Sending files by email isn’t the best way to get information where it needs to be. An SFTP server or FTPS server enables you to conduct file transfers efficiently while staying secure. Throughout this list, we’ve looked at some of the top tools on the market to help you find the best fit.

Our top pick, offers a great Cloud-based FTP Server solution that can scale with your needs and keep your organization HIPAA Compliant. Second to that, SolarWinds SFTP/SCP Server is an SFTP server that ticks all the boxes for enterprises looking for a simple SFTP management solution. For those who want to use SFTP and FTPS our runner-up SolarWinds FTP Voyager is a better fit.

Other tools like FileZilla, Server, and CrushFTP also stand out among the pack as excellent alternatives. We recommend that you make use of a free trial first before committing to deploying a new software solution.

What is the best enterprise FTP server?

Enterprises need secures FTP servers. According to our research, the best enterprise FTP servers are:

  • SolarWinds SFTP/SCP Server (includes SFTP, SCP, and FTP servers)
  • Couchdrop (includes SFTP, SCP, and FTP servers)
  • SolarWinds FTP Voyager (includes SFTP, SCP, and FTP servers)
  • FileZilla FTP tool (includes SFTP, FTPS, and FTP servers)
  • IIS FTPS Server (includes FTPS and FTP servers)
  • Server (includes SFTP, FTPS, and FTP servers)
  • CrushFTP (includes SFTP, FTPS, SCP, and FTP servers)
  • Rebex Tiny SFTP Server (includes SFTP and FTP servers)
  • Titan FTP Server (includes SFTP, FTPS, and FTP servers)
  • OpenSSH (includes SFTP and FTP servers)

Does Microsoft IIS support SFTP server?

No. Microsoft IIS server doesn’t support SFTP. Nor does IIS support SSH in general. Instead of SFTP, the secure file transfer protocol that IIS supports is FTP Secure (FTPS, aka FTP-SSL, FTP over TLS, and FTP over SSL). FTPS and SFTP are not the same, but both are equally secure. The IIS FTPS server can be found in Windows Server.

How do I run a SFTP server on Windows?

The access to SFTP server on Windows depends on which Windows-based STFP server you choose to install. Most Windows STFP server tools are self-installing. Once you have that SFTP server software, you just need to run it by open the service and Select SFTP server functions from the menu of your tool.

How do I connect to SFTP server with Linux?

STFP on Linux has its own command environment. There are two ways to connect to SFTP server in Linux. If you want to include an SFTP session in an automated process through a script, it is better to set up a passwordless SFTP connection system. Manually, you connect to SFTP server in Linux by typing in sftp remote_username@IP_or_hostname and hitting return. You will be prompted for the password for that user account. After successful login, you will see the sftp> prompt, which shows that the SFTP connection has been established.

How do I host a SFTP server?

The method of hosting an SFTP server depends on your operating system and which SFTP server tool you chose to install. For example, the SFTP servers in this guide will set up an SFTP server automatically. So, the easiest way to host an SFTP server is to choose an appropriate STFP server tool for your host operating system.

How do I make my FTP server secure?

Choose a secure FTP protocol such as FTPS or SFTP in order to get security on all of your FTP server connections. Do not rely on FTP alone for connections over the internet. Although TFTP is widely used on networks for small data transfers, only use this FTP server internally and as little as possible because it is not secure.

Which is better SFTP or FTPS?

Both SFTP and FTPS secure transmissions with encryption. However, the two systems are completely different. FTPS is FTP with added security, whereas SFTP is a variation of a different protocol – SSH. SFTP creates a tunnel that protects all processes, including authentication procedures however SFTP does not protect its authentication channel. As FTPS requires two connections and SFTP uses only one, SFTP is easier to manage and quicker

Is SFTP HIPAA compliant?

SFTP is a flexible protocol with room for variation in the strength of security applied to it. Therefore, the issue of HIPAA compliance depends on the way the protocol has been implemented in a particular software package. Some SFTP implementations are HIPAA compliant while others are not.

Is SFTP GDPR compliant?

SFTP is not automatically GDPR compliant. The strength of security is reliant on the way the protocol has been implemented in a client and server system. Therefore, some SFTP packages are fully GDPR compliant while others are not.