FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
Beyond Compare - Beyond Compare allows you to compare files and folders.
WP All Import - WP All Import makes it extremely easy to import CSV & XML files to WordPress.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
GoAnywhere MFT - GoAnywhere is a managed file transfer (MFT) solution that secures and automates the exchange of data. GoAnywhere's interface and workflow features eliminate the need for custom programs, scripts, single-function tools or other manual methods.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.