Run a Real Packet Loss Test from Any Modern Browser.

Test Network Health Instantly & Measure What Your Network Hides.
CLIENT SERVER OpenPacketLoss™

Designed to measure the true packet loss that standard speed tests miss.

THE MOST ACCURATE AND RELIABLE PACKET LOSS TEST TOOL

Run a packet loss test from any device — phones, TVs, consoles, or computers.

(No app. No plugin. Just your browser.)

What is Packet Loss?

Packet loss occurs when data packets traveling across a network fail to reach their destination. In a stable environment, every bit of data sent would arrive intact; however, real-world networks are complex. Think of it like a mailing service losing letters: you might receive most of your mail, but missing pieces cause significant confusion. On the internet, this manifests as lag or stuttering in video games, and choppy audio during video calls. It is often caused by network congestion where too much data attempts to pass through a narrow bandwidth, or by inconsistent Wi-Fi signals that drop information. Even minimal loss can be detrimental for real-time applications like VoIP or gaming. Understanding this metric is key to diagnosing why a connection feels slow even when a standard speed test appears normal. By identifying the root cause, such as a faulty router, a damaged Ethernet cable, or an overloaded ISP node, you can accurately address the primary source of connection degradation.

How to Fix Packet Loss

Fixing packet loss requires a systematic approach to isolate where the data is being dropped. Start with a basic check: switch from Wi-Fi to a wired Ethernet connection. Wireless signals are prone to interference from walls, household appliances, and neighboring routers, which frequently results in dropped packets. If the issue persists on a wired connection, inspect your hardware: a damaged cat5e or cat6 cable can cause intermittent failures. Next, examine your router’s resource usage. If too many devices are streaming high-definition video or downloading large files simultaneously, the router’s processor may become overwhelmed, a condition known as bufferbloat. You can often resolve this by enabling Quality of Service (QoS) settings to prioritize critical gaming or voice traffic. If the loss occurs outside your local network, it might be an ISP routing problem. Running a traceroute can help you find the specific hop where the loss begins, providing the technical evidence needed to report a fault to your internet provider.

Deploy Your Own Server

Deploying a private OpenPacketLoss™ server provides complete control over your network diagnostics. Public testing tools are useful, but they often rely on distant servers that may be experiencing their own congestion, which can skew your results. By hosting an endpoint on a local machine, a Raspberry Pi, or a cloud instance, you eliminate external variables and measure the specific network path you rely on most. This is particularly valuable for system administrators and power users who need to monitor branch office connectivity or remote VPN performance. Our server software is designed to be lightweight and easy to set up, using modern WebRTC and UDP protocols to simulate real-world traffic patterns accurately. Whether you want to run a permanent monitoring node or a temporary test bench for troubleshooting a specific link, self-hosting provides the high-resolution data that consumer-grade tools generally cannot offer. Take the guesswork out of your infrastructure and start measuring your network quality on your own terms with a dedicated local test endpoint.

DEPLOY YOUR OWN PACKET LOSS TEST SERVER — MEASURE REAL NETWORK QUALITY

Real-time packet loss testing across devices. Your network. Your infrastructure.

Cloud Endpoints

Cloud endpoints are an effective solution for testing long-distance network stability without the bias of congested public servers. By deploying OpenPacketLoss™ to a VPC in a specific region, such as AWS US-East or Google Cloud Singapore, you can measure exactly how your connection handles traffic to those critical nodes. This is invaluable for remote workers who depend on cloud-based applications and need to verify their home connectivity is stable. Cloud-hosted nodes provide a consistent baseline, as they are typically connected to high-capacity backbone networks with minimal internal congestion. You can use these endpoints to compare different ISPs or evaluate various routing paths, such as using a VPN compared to a direct connection. Setup is streamlined through our Docker images, allowing you to have a fully functional testing node live in minutes. Stop wondering if the latency is coming from the application server or your own environment; with a dedicated cloud endpoint, you will have the empirical data required to understand your true performance levels.

Self-Hosted Node

A self-hosted node is the standard for internal network auditing and low-latency testing. By running a node on your local area network (LAN), you can isolate issues within your own infrastructure. Whether a switch is failing or a mesh Wi-Fi system is dropping packets as you move between nodes, a local instance will provide immediate feedback. For enterprise environments, these nodes can be distributed across different floors or buildings to monitor internal trunk lines and fiber interconnects. Because the traffic never leaves your building, you obtain a high-fidelity view of your hardware's performance, allowing you to identify micro-bursts of loss that would be hidden by a distant testing server. Our node software is optimized for efficiency, meaning it can run in the background of a standard office workstation or a dedicated server without impacting other tasks. It is an essential tool for any network engineer who needs to maintain absolute reliability across a complex, multi-device infrastructure where precise data is critical for troubleshooting.

Open Source Code

We believe that the tools used to measure the internet should be as transparent as the network itself. OpenPacketLoss™ is built on a foundation of open-source principles because trust is earned through visibility. Proprietary testing tools often hide their internal algorithms, making it impossible to know if they are filtering out legitimate errors or manipulating results to favor specific providers. By keeping our code open on GitHub, we allow the global networking community to audit our methodology, contribute performance improvements, and adapt the engine for specialized hardware. Whether you are a developer looking to integrate deep packet loss testing into your own application, or a security researcher wanting to ensure our UDP implementation is robust, the source is fully available for review. Our community-driven approach ensures that we remain compliant with the latest WebRTC standards. Contributing is straightforward, and we welcome everything from bug reports to full-scale feature updates. Join us in building a more honest and reliable way to measure the web for everyone.