Quad9 - Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
NextDNS - Block ads, trackers and malicious websites on all your devices.
Wireshark - Wireshark is a network protocol analyzer for Unix and Windows. It lets you capture and interactively browse the traffic running on a computer network.
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.
Postman - The Collaboration Platform for API Development