Rebex Tiny SFTP Server

Spec sheet

Purpose

Rebex describes Tiny SFTP Server as a small server for local SFTP client development, testing, quick file sharing, and throwaway single-user setups.Read 9 Oct 2026 · rebex.net

Support

The product page lists email support at [email protected] and a support forum.Read 9 Oct 2026 · rebex.net

Headquarters

Prague, Czech RepublicRead 28 Sep 2026 · rebex.net

Founded

1995Read 28 Sep 2026 · rebex.net

Maker

Rebex says it creates and ships .NET applications and components worldwide and is located in Prague, Czech Republic.Read 9 Oct 2026 · rebex.net

Authentication

It supports password authentication and public/private-key authentication using RSA or DSA keys.Read 9 Oct 2026 · rebex.net

Configuration

Settings are stored in an XML configuration file, including the port, IP bindings, root folder, keys, and enabled encryption ciphers; changes require an application restart.Read 9 Oct 2026 · rebex.net

Encryption

The configuration documentation lists supported SSH ciphers including AES-GCM, ChaCha20-Poly1305, AES-CTR, and legacy CBC options, with CBC and Twofish disabled by default according to the release notes.Read 9 Oct 2026 · rebex.net

File access

The server provides one user with read/write access to a configured root data folder.Read 9 Oct 2026 · rebex.net

Intended use

Rebex says Tiny SFTP Server is for development, testing, and quick sharing, and advises against using real passwords or production workloads with it.Read 9 Oct 2026 · rebex.net

Recent security update

Release 1.0.24 added ML-KEM post-quantum key agreement support and rejected non-standard public key formats during SSH negotiation.Read 9 Oct 2026 · rebex.net

Security limitation

The password is stored in a clear-text configuration file and is displayed in the server application window by default.Read 9 Oct 2026 · rebex.net

Setup

The product page says to unzip the download, run the executable, and press Start; it requires no installer, signup, or account.Read 9 Oct 2026 · rebex.net

Source code

The product page identifies Tiny SFTP Server as open source and links to its GitHub project.Read 9 Oct 2026 · rebex.net

User management limits

The product does not include multiple users, Windows authentication, user impersonation, single sign-on, or per-user access rights.Read 9 Oct 2026 · rebex.net

Windows support

It runs on modern Windows and requires .NET Framework 4.x; the documentation lists Windows 10 and 11, Windows Server 2012 through 2022, and several legacy Windows versions.Read 9 Oct 2026 · rebex.net

Plans and prices

Every Rebex Tiny SFTP Server plan and price →

Where Specifiction places it

• FTP Server Software#31 of 337.7