
Fping (open source)
Ping Meter Gadget
Open Nettest
OpenSpeedTest
PingDoctor
NetCrunch Tools
KeyCDN Tools
NetTK
ThreadMine.dev
ThreadMine analyzes Java/JVM thread dumps in seconds. Upload or paste a dump (no signup, up to 10 MB) and get automatic detection of deadlocks, thread leaks, pool exhaustion, CPU hotspots and virtual thread pinning (Project Loom), plus a health score and a shareable report.
Parses HotSpot, OpenJ9, Zing and GraalVM. Paid plans add an AI assistant that explains the root cause and suggests a fix, multi-dump comparison/timeline, history, integrations and an API. A free, no-login web analyzer is the entry point โ the same low-friction flow as fastThread.io or jstack.review, but with automatic problem detection and AI on top.
Privacy: no account, TLS + AES-256, temporary dumps, zero AI-data retention.
Fping (open source)
ThreadMine.devNo features have been listed yet.
Ping Meter Gadget - Customizable, graphical, semi-transparent ping (latency) meter.
Open Nettest - Open Nettest is a platform for collecting, processing and visualizing data related QoS and QoE.
OpenSpeedTest - Broadband Internet Speed Test Unlocked!
PingDoctor - PingDoctor is software that is considered to be the most powerful and easiest to use network route analyzer.
NetCrunch Tools - Our free network tools offer ping scanning, SNMP scanning, port and network service scanning, and more.
KeyCDN Tools - Website speed test, online curl, ping tool, https/2 and other services