When you are finished, click the Stop icon (a hand or cross symbol) to restore normal network routing. Failing to stop the program properly can sometimes leave target devices disconnected until they reboot or cycle their Wi-Fi. Troubleshooting Common Errors
Selfishnet needs to make changes to your network settings, which requires administrator rights.
| Tool | Type | Safety | Ease of Use | | :--- | :--- | :--- | :--- | | | Legitimate Software | High (Paid/Free) | Easy | | NetCut 3.0 | Freeware (Modern) | Medium | Very Easy | | Router QoS | Built-in Router | High | Moderate | | GlassWire | Firewall + Monitor | High | Easy |
: Displays all connected devices, their MAC addresses, and their current data usage. ARP Spoofing
All internet traffic from the target device is forced to route through your PC first. SelfishNet then throttles or drops the data packets before forwarding them to the actual router.
SelfishNet relies on a network protocol technique known as (or ARP Poisoning).
Scans the network to list all active devices, including their IP and MAC addresses.
While is highly reliable and popular, a newer version, Selfishnet v3 , was updated in 2025 to offer similar, more refined features. Selfishnet v2.1: Known for stability and simplicity.
A simple checkbox allows you to completely spoof a device's connection, effectively disconnecting it from the internet without changing the router password.
Enter the desired maximum download and upload speeds in the provided columns (e.g., 1000 KB/s).
Are you trying to fix hogging data? Do you have access to your router's login details ?
A modern, command-line alternative built in Python for Linux and Windows systems that achieves similar results to SelfishNet but features updated network compatibility. Final Verdict
Download the Selfishnet_v2.1 zip file (often found on developer repositories like shaisilva/selfishnet_v2.1 on GitHub ).
Because SelfishNet is no longer officially maintained, downloads are only available from third-party archives, such as:
Network bandwidth is a shared resource. In a crowded household or small office, one person downloading a massive file or streaming 4K video can cause severe lag for everyone else.
This comprehensive guide explores what SelfishNet v2 is, how it works, the security risks associated with downloading it today, and modern, safer alternatives for managing your network bandwidth. What is SelfishNet v2?
Software