Packet Sender
Packet Sender


Packet Sender free download for Mac

Packet Sender7.0.5

27 July 2020

Test your internet connection.


Packet Sender is an open source utility to allow sending and receiving TCP, UDP, and SSL (encrypted TCP) packets. The mainline branch officially supports Windows, Mac, and Desktop Linux (with Qt). Other places may recompile and redistribute Packet Sender. Packet Sender is free and licensed GPL v2 or later. It can be used for both commercial and personal use.

  • Controlling network-based devices in ways beyond their original apps
  • Test automation (using its command line tool and/or hotkeys)
  • Testing network APIs (using the built-in TCP, UDP, SSL clients)
  • Malware analysis (using the built-in UDP, TCP, SSL servers)
  • Troubleshooting secure connections (using SSL ).
  • Testing network connectivity/firewalls (by having 2 Packet Senders talk to each other)
  • Stress-testing a device (using intense network generator tool)
  • Tech support (by sending customers a portable Packet Sender with pre-defined settings and packets)
  • Sharing/Saving/Collaboration using the Packet Sender Cloud service.

Note: While the software is classified as free, it is actually donationware. Please consider making a donation to help support development.

What's new in Packet Sender

Version 7.0.5:
  • Dark Mode for all platforms!
  • Packet Starter set! Send immediately after installing!
  • Macro send support
  • Qt SDK upgrades
  • Installer upgrade (windows)
  • Lowercase executable (now for Mac --others already had it)
  • Socket race condition fix on persistent TCP
  • Long-overdue bug fix of empty TCP log entries
  • Multi-Send removed (was always buggy)
  • Clipboard copy modal prompt is now a quiet status bar notification
  • Persistent TCP UI is now a fixed-width font
  • Lots of compiler warnings cleaned up (the remaining warnings were very recently deprecated. They are left behind those so older compilers can still work.)

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