The best open source alternative to NetLimiter is simplewall, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to NetLimiter and five of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to NetLimiter are Gufw (Free, Open Source), Portmaster (Free, Open Source), trickle (Free, Open Source) and TrafficToll (Free, Open Source).
Gufw is an easy, intuitive way to manage your Linux firewall. It supports common tasks such as allowing or blocking pre-configured, common p2p, or individual ports port(s), and many others! Gufw is powered by Uncomplicated Firewall (ufw).
show more ▾
Gufw vs NetLimiter opinions
This alternative is disputed. Gufw is still a legitimate alternative to NetLimiter, but it might have issues that some users think are important.
On Linux, it uses netfilter to rate-limit ports and applications
All-Around System Privacy Since the Portmaster sits on your kernel, you can finally protect your whole computer, not just your browser. Do you want to block Ads and Analytics for your whole operating system? The Portmaster has you covered.
trickle works by taking advantage of the unix loader preloading. Essentially it provides, to the application, a new version of the functionality that is required to send and receive data through sockets.