SFTP Server

SFTP Server is a lightweight high performance SSH File Server designed provide robust security and high throughput while being simple to use and configure.

FREE Starter Edition (Including Commercial Use)
SFTP Server

SFTP Server for Windows

SFTP Server is a lightweight, high-performance SSH File Server designed to provide robust security and high throughput while being simple to use and configure. Be up and running in minutes with the default settings or tailor the server to your specific requirements using advanced settings and features.

The server is built with our rock-solid IPWorks components, which have provided industry-leading security and performance for decades to tens of thousands of developers around the world. Written entirely in .NET, and relying on operating system security infrastructure and our own security technology, there are no dependencies on third-party libraries or open source code.

The Starter Edition is absolutely FREE to use, even for commercial purposes, and covers most individual file sharing needs. It comes with a perpetual license with no tracking, advertising, or other monetization mechanisms. All we ask is your feedback to help us improve our products.

Other editions add enterprise-level features and authentication mechanisms. For advanced security, a FIPS 140-2 enabled version is also available (please contact sales@nsoftware.com for more information).

Add an SFTP server to Windows

Easily configure an SFTP Server on any Windows Desktop or Server for instant Secure File Transfer capability.

Enjoy Enterprise Strength Security

SFTP Server supports all major SSH algorithms, AES and 3DES encryptions, FIPS 140-2 cryptography, and more.

Virtual Users

Use virtual users or integrated windows authentication to secure access. Customize settings on a per-user basis.

Encryption at Rest

Optionally encrypt files at rest on disk using industry standard encryption techniques.

Session Management

Easily visualize and disconnect sessions at the click of a button.


Use the intuitive interface to start hosting files within minutes.

Product Features

  • Supports all modern algorithms including AES (CTR, CBC, and GCM), 3DES, Blowfish, SHA-256, ECDH, and more.
  • Create virtual users with individual root directories.
  • Optional encryption at rest protects data on disk.
  • Runs as a Windows service or standalone desktop application.
  • FIPS mode can be enabled for use in high security environments.
  • Granular control over advanced functionality including algorithms.
  • Support for Windows Arm64.
  • Monitor connected clients.
  • Full support for public key authentication.
  • Simple design makes hosting a snap.


FREE Perpetual License for both Personal and Commercial Use. Limited Email Support.

  • Simple User Management
  • Run as a Windows Service
  • Essential Features
Always Free


Perpetual License with one year of free updates and upgrades. Standard Support.

  • Windows Users and Groups
  • Session Management
  • Advanced Features


Perpetual License with one year of free updates and upgrades. Priority Support.

  • Encryption at Rest
  • Kerberos Authentication
  • All Features

For a detailed feature comparison, please see our SFTP Server Feature Comparison page.