Port Checker is a free online tool for checking open ports on a computer or device and verifying port forwarding setup on a router. It can help diagnose connection errors and problems with firewall setup, and supports entering a custom target IP address.
CanYouSeeMe.org is a free open port check tool for remotely verifying whether a port is open or closed. It is used to check port forwarding, confirm a server is running, or detect whether a firewall or ISP is blocking ports.
Pinging.net is a web tool for testing and monitoring an internet connection. It reports status for HTTP, DNS, WebRTC and the browser, and shows web ping statistics including last, minimum, maximum and average values and packet loss, with updates every 30 seconds.
LibreSpeed is a free and open source speedtest that runs in the browser or can be self-hosted on a PHP, Golang, Rust or Node server. It is licensed under LGPL and measures download, upload, ping, and jitter without Flash, Java, or Websockets.
NetBlocks provides network diagnostics for checking connectivity, traffic, devices, or internet performance.
mRemoteNG (Multi-Remote Next Generation) is an open-source, tabbed remote connections manager for Windows. It presents remote connections in a single interface and supports multiple protocols including RDP, VNC, SSH, and HTTP/S.
OpenSpeedTest is a browser-based HTML5 internet speed test that measures download, upload, ping, and jitter without Flash or Java. It works on phones, TVs, consoles, and computers. A free and open-source self-hosted server can be deployed, and a speed test widget can be embedded on websites or apps.
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CanYouSeeMe.org is a free open port check tool for remotely verifying whether a port is open or closed. It is used to check port forwarding, confirm a server is running, or detect whether a firewall or ISP is blocking ports.
Pinging.net is a web tool for testing and monitoring an internet connection. It reports status for HTTP, DNS, WebRTC and the browser, and shows web ping statistics including last, minimum, maximum and average values and packet loss, with updates every 30 seconds.
LibreSpeed is a free and open source speedtest that runs in the browser or can be self-hosted on a PHP, Golang, Rust or Node server. It is licensed under LGPL and measures download, upload, ping, and jitter without Flash, Java, or Websockets.
NetBlocks provides network diagnostics for checking connectivity, traffic, devices, or internet performance.
mRemoteNG (Multi-Remote Next Generation) is an open-source, tabbed remote connections manager for Windows. It presents remote connections in a single interface and supports multiple protocols including RDP, VNC, SSH, and HTTP/S.
OpenSpeedTest is a browser-based HTML5 internet speed test that measures download, upload, ping, and jitter without Flash or Java. It works on phones, TVs, consoles, and computers. A free and open-source self-hosted server can be deployed, and a speed test widget can be embedded on websites or apps.
