Network Tools

WiFi Analyzer helps Windows users identify wireless network problems and choose a Wi-Fi channel.

Cloudflare Speed Test measures download, upload, latency, jitter, and packet loss for an internet connection.

Compare self-hosted alternatives to ngrok, Cloudflare Tunnel, Tailscale, and ZeroTier in this tunneling tools list.

Test download and upload speeds from the command line using fast.com with fast-cli.

Run nsupdate.info as a free dynamic DNS service or use its software to host your own service.

Check-Host monitors websites and checks servers, IP addresses, and host availability.

Find the IPv4 and IPv6 addresses for Cloudflare 1.1.1.1 and its family DNS resolvers in the service documentation.

Request a free .is-a.dev subdomain by following the registration steps in the project repository.

Use the AdGuard DNS filter, which combines filters for ads, tracking protection, and mobile ads.

Host DNS records for domains with Hurricane Electric’s free DNS service.

Measure network performance with OpenSpeedTest, an open-source HTML5 speed test built with browser APIs.

NETworkManager provides open-source tools for managing networks and troubleshooting connection problems.

Run a DNS ad-blocking server with Bancuh DNS and dnsdist-acme in Docker.

Connect local services through Cloudflare Tunnel with cloudflared, the command-line tunnel client.

Run Cloudflare’s internet speed test from a terminal and view results in a text interface.

Network protocol traffic can be inspected with Wireshark, a packet analysis application.

Configure AdGuard public DNS to block ads, trackers, malware, and adult websites.

Enter a MAC address or OUI to find its vendor using IEEE and Wireshark manufacturer data; a REST API is also available.

Listen on network ports or open a reverse shell with Rustcat, a cross-platform command-line tool.

Switch between host file configurations on macOS, Linux, and Windows with SwitchHosts.

Networking Toolbox offers online tools for IP addressing and subnet calculations.

Meshtastic is open-source mesh networking software for low-power devices used off-grid.

Resolve and cache DNS queries with Unbound, a validating resolver that supports encrypted DNS protocols.

Register a free domain, connect a DNS provider, and follow practical DNS learning resources through DigitalPlat FreeDomain.