Selfishnet V3 -

Earlier versions were blunt instruments: slow everyone down to a crawl. V3 is a scalpel.

Users who champion Selfishnet V3 highlight several specific features that set it apart from generic network limiters: Selfishnet V3

Let’s be honest. Running Selfishnet is technically illegal in many jurisdictions (unauthorized network interference). It violates most ISP fair-use policies. It will make your housemates curse their "bad router." Malicious or problematic:

But it also raises an interesting question:
In a world where bufferbloat is real, ISPs oversell bandwidth, and "smart queues" don't exist in cheap routers… is it immoral to reclaim low-latency for your own critical tasks? Earlier versions were blunt instruments: slow everyone down

V3 forces a conversation. Maybe you run it once, win your match, then turn it off. Maybe you schedule it during "peak hours" only. Or maybe — just maybe — you use it to teach your housemate that 11 PM isn't the right time to upload a 50 GB iCloud backup.

SelfishNet v3 is a network-management tool that lets users monitor and control devices on a local area network (LAN). Built around packet capture and ARP-manipulation techniques, it provides a GUI for viewing connected clients, measuring bandwidth per device, and selectively throttling or blocking traffic. While it offers convenience for home or small-office network troubleshooting and parental controls, its methods raise ethical and legal concerns when used without proper authorization.

Because Selfishnet V3 relies on ARP spoofing, it also opens your own PC to security vulnerabilities. Malware on your network can hijack the MITM position. Furthermore, if you run the tool on a public Wi-Fi (e.g., a coffee shop or library), you are effectively performing an illegal wiretapping operation.