Packet Sender is 100% free with no ads and no bundles. If you find the app useful, please consider donating .

Version v5.1
Installer for Windows
XP, Vista, 7, 8.x, 10
Version v5.1
Portable Version for Windows
Zipped and Ready!

Version v5.1-sierra1
Mac download Or Homebrew:
brew update
brew cask install packetsender
If you have trouble 1st launching, run the command line:
Version v5.1
Linux download
Requires Qt5

Previous versions are available.