Syncplify MicroServer!

Free Portable SFTP Server for Windows and Linux

Our cutting-edge software guarantees protection for your data in transit and at rest. Reliable security without compromise, anytime and anywhere.
Terminal window showing Syncplify MicroServer v4.0.0 running, listening on 127.0.0.1:2022, with client connected and directory list sent.

MicroServer! Free SFTP Server Download for Personal Use

MicroServer! is a lightweight, free SFTP server designed for personal, non-commercial use. It allows individuals, students, and hobbyists to run a simple SFTP server on Windows or Linux with minimal setup. However, it comes with certain limitations that users should be aware of.

Singular User, Folder

MicroServer! supports only a single user profile and a single root folder, making it suitable for testing or basic file sharing scenarios.

Single-Client Connect

It accepts incoming connections from only one client at a time, limiting concurrent usage.

Locked Protocols

Protocol and security settings such as key exchange (KEx), HMAC, and cryptographic algorithms cannot be customized in this edition.

Dynamic RSA Keys

Each time MicroServer! is launched, a new RSA host key is generated and used, reinforcing its purpose as a lightweight testing and evaluation tool rather than a long-term deployment solution.

Download MicroServer!

If you are looking for a quick and easy way to run an SFTP server on Windows or Linux for personal use, MicroServer! provides a simple starting point. Keep in mind that if you plan to deploy an SFTP server for long-term business or enterprise use, MicroServer! is not the right choice. It is not intended for production environments or scalable deployments. For advanced security controls, customization, and multi-user capabilities, you will need the complete feature set of Syncplify Server!
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Download MicroServer! For Windows (x86)

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​Download MicroServer! For Linux (x86)

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Download MicroServer! For Linux (ARM)

Simple SFTP Server for Testing and Learning

MicroServer! is ideal for anyone who needs a quick SFTP server for testing or personal use. Whether you want to test secure connectivity, learn how SFTP works on Windows, or explore a lightweight setup on Linux, MicroServer! provides a clean and straightforward environment to get started.

Because it is intentionally limited to a single user and connection, it keeps configuration simple and predictable. This makes it perfect for students, developers validating integration logic, or administrators reviewing protocol compatibility before deploying a full production system.

MicroServer! is not designed to compete with enterprise-grade infrastructure. Instead, it offers a minimal, controlled way to understand how secure file transfer works in practice, without complexity or licensing overhead. When your needs grow beyond basic testing, a seamless upgrade path is available.

Need More Than the Basics?
Upgrade to Syncplify Server!

If you need a production-ready SFTP server for Windows or Linux with advanced configuration, security hardening, and enterprise scalability, Syncplify Server! provides the full capabilities required for professional environments. Enjoy unparalleled security, seamless file transfers, and unmatched reliability, tailored to meet demanding data protection requirements.


Frequently asked Questions

We’ve compiled answers to frequently asked questions to make it easier for you. Visit our Knowledge Base to find relevant articles and ready made solutions.
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Is MicroServer! really free?
Does MicroServer! require installation?
What are the limitations of MicroServer!?
Can I use MicroServer! for my business?
What platforms does MicroServer! run on?
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