Jitter Test | Measure Network Stability
Measure latency variation across repeated requests to spot unstable connections that can affect video calls, gaming, streaming, and remote desktop.
What Jitter Means
Jitter is the variation between latency samples. Even when average ping looks acceptable, high jitter can cause choppy calls, lag spikes, audio dropouts, and unstable remote sessions.
How to Read Jitter Results
Stable networks keep latency samples close together. Large jumps between samples can point to Wi-Fi interference, VPN issues, router load, mobile signal changes, or background traffic.
When Jitter Matters Most
Check jitter before video meetings, livestreaming, online gaming, VoIP calls, and remote desktop work. For downloads, raw speed often matters more than jitter.
About This Tool
Jitter Test measures the variation in latency over multiple ping requests. While ping shows average delay, jitter shows how consistent that delay is. High jitter causes audio breaks and video freezing in calls even when average ping is low.
When to Use It
Use this when voice or video calls sound choppy despite a reasonable ping, when diagnosing unstable gaming connections, or when evaluating whether a connection is stable enough for VoIP or real-time communication.
How to Use
- Click Start to begin the jitter measurement.
- The tool sends repeated pings and records the variation between them.
- Review the jitter value in milliseconds.
- Lower is better; under 10ms is ideal for voice and video.
Frequently Asked Questions
What causes high jitter?
Network congestion, inconsistent Wi-Fi signal, overloaded routers, and interference from other devices on the network all contribute to jitter.
How is jitter different from latency?
Latency is the average time for a packet to travel. Jitter is how much that time varies between packets. Consistent latency is more important than low latency alone for real-time communication.
What jitter level is acceptable for VoIP calls?
VoIP calls work well with jitter under 20ms. Above 40ms, audio quality degrades noticeably with delays and gaps in speech.