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Editors' Review · November 4, 2025

FlashFXP is a powerful FTP client for Windows. With its intuitive and customizable user interface, Flash FXP provides the fastest and easiest way to transfer or backup files between your local computer and a remote server, or directly between two servers. In addition to FTP, FlashFXP provides additional security with SFTP (Secure Shell/SSH), FTPS (Secure Socket Layer (SSL) over FTP) and a smooth one time password support. Its unique features include multi-firewall and proxy support, speed limiting, server file searching, remote editing with automatic (or manual) uploading, automated transfer scheduling with email notifications, priority transfer lists and extensive file transfer rules.

Enlarged image for FlashFXP
FlashFXP 0/3

Technical

Title
FlashFXP 5.4.0.3970 for Windows
Requirements
Windows 11
License
Free
Latest update
Author
OpenSight Software LLC
SHA-1
b983025294c2362e5423fa7577d825b88ab89316
Filename
FlashFXP54_3970_Setup.exe

Program available in other languages

Added a new Character Encoding setting "Strict character encoding" in the Site Manager / Options tab. When checked, FlashFXP will not attempt to detect UTF-8 mixed with non-UTF-8 text. On servers that do not use UTF-8 certain character encodings may incorrectly detect as UTF-8 and as a result garble the text, checking this setting can avoid the issue. We have seen this issue on Xlight FTP server software when using the character encoding Chinese Simplified (GBK/GB2312)Fixed: A slow performance startup issue under a remote terminal session when the window state was maximized.Change: When running under a remote terminal session we've reduced the amount of memory allowed to be allocated for remote directory caching. The original memory allocation limit was calculated based on a desktop PC and now we a different method for server environments to make FlashFXP more server resource friendly.The crash report dialog is now dpi-aware.Updated SecureBlackBox library.Fixed: In a site profile if the login type was previously set to "Key based" and then changed to "Normal" the previously saved key was still used during authentication and before the password authentication. Now the key authentication is not attempted.

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