Free, open-source privacy suite monitoring all network activity, blocking unwanted connections, using trusted filter lists for ads and malware, enforcing DNS-over-TLS, providing custom app and global rules, and supporting advanced privacy management.




Comments about Portmaster as an Alternative to NetLimiter
NetLimiter's primary usage is to limit speed. Portmaster doesn't limit speed. So Portmaster is irrelevant.
more options, more advanced, simpler, and open source

This alternative is disputed. Portmaster is a legitimate NetLimiter alternative, but it might have issues that some users think are important.
Portmaster is the most popular Windows & Linux alternative to NetLimiter.
Portmaster is the most popular Open Source & free alternative to NetLimiter.
- Portmaster is Freemium and Open Source
- Portmaster is Privacy focused and Lightweight






















































Portmaster does not provide a way to set bandwidth limits, so it is not similar enough to NetLimiter to be an alternative.