Network Speed Test
Free browser-based internet speed test, no app needed. Measure download & upload Mbps, ping, jitter & packet loss, plus your IP and ISP, in real time.
About Network Speed Test
Test your internet connection speed in the browser, no app or plugin to install. Measure download speed, upload speed, ping, jitter, and packet loss, plus detect your public IP and ISP.
Methodology: download and upload are measured with six and three parallel streams against a dedicated same-origin endpoint that serves and discards incompressible random data with Cache-Control: no-store, so results reflect real throughput rather than CDN edge-cache hits. The first second of each phase (ramp-up) is excluded so TCP slow-start does not understate your speed, and the payload size adapts to the measured rate. Latency is reported as HTTP round-trip time over a pre-warmed keep-alive connection (not ICMP ping), with jitter as the standard deviation of those samples.
The min/avg/max statistics strip and CSV export turn a one-off reading into a defensible record across repeated runs, ideal for QA labs, repair techs, and SLA verification. Use it to diagnose network issues, verify ISP speeds, test Wi-Fi performance, or check connection quality for gaming and streaming.
Frequently Asked Questions
The speed test measures your internet connection by downloading and uploading data to/from CDN servers. Download speed is measured by fetching files from multiple servers and calculating transfer rates. Upload speed is tested by sending data to test endpoints. Ping and latency are measured by sending multiple requests and calculating round-trip times.
Most internet connections are asymmetric, meaning download and upload speeds are different. Download speed affects streaming, browsing, and file downloads. Upload speed is important for video calls, cloud backups, and uploading files. Testing both gives you a complete picture of your connection performance.
Ping (or latency) measures the time it takes for data to travel from your device to a server and back. Lower ping means faster response times, which is crucial for online gaming, video conferencing, and real-time applications. Good ping is typically under 50ms, while anything over 100ms may cause noticeable delays.
Jitter measures variation in ping times - consistent ping times mean low jitter, which is good. Packet loss occurs when data packets fail to reach their destination, causing connection issues. Both metrics are important for stable connections, especially for VoIP, gaming, and video streaming.
Download and upload are measured against our own same-origin endpoint, which streams and immediately discards incompressible random data. Using a dedicated endpoint (instead of re-fetching small, edge-cached CDN library files) gives reproducible numbers that reflect your real bandwidth rather than how close you are to a CDN cache.
Our speed test uses industry-standard methods with multiple test iterations to ensure accuracy. However, results can vary based on network congestion, Wi-Fi signal strength, background applications, and server load. For best results, close other applications, use wired connection if possible, and run the test multiple times.
ISP speeds are typically 'up to' maximum speeds under ideal conditions. Actual speeds vary due to network congestion, distance from exchange, Wi-Fi interference, router quality, and the number of connected devices. Speed tests measure real-world performance, which is often lower than advertised speeds.
Yes! After completing a test, you can share results via social media or copy to clipboard. You can also download results as a text file. Test history is automatically saved in your browser (last 10 tests) and displayed as a chart for tracking connection performance over time.
Yes, the speed test is fully responsive and works on smartphones and tablets. However, mobile results may be lower than desktop due to Wi-Fi signal strength, cellular connection quality, or device processing power. For most accurate results on mobile, ensure strong Wi-Fi signal and close background apps.
Our tool provides comprehensive metrics (download, upload, ping, jitter, packet loss) with a visual speedometer, real-time progress, test history charts, a min/avg/max statistics strip, and CSV export. It's completely free, ad-free, requires no registration, and runs client-side in your browser.
All speed measurements run client-side in your browser; nothing is uploaded to us for analysis. The upload test sends throwaway random data to our endpoint, which counts the bytes and discards them immediately (nothing is stored). Your test history and CSV export live only in your browser's local storage. Your IP and ISP name are looked up via third-party IP APIs (ipify, ipwhois, geoiplookup) purely to display them to you.
You need a secure HTTPS connection and a modern browser that supports the Fetch and ReadableStream APIs (current Chrome, Edge, Firefox, Safari). The tool works on desktop and mobile. Results differ by connection type: Ethernet is usually fastest and most stable, Wi-Fi depends on signal and interference, and cellular varies with coverage. A VPN or proxy routes traffic through another server and will typically lower speed and raise ping, so disable it for an accurate reading.
As a rough guide: 4K streaming needs about 25 Mbps download, HD streaming about 5 Mbps, and Zoom or video calls about 3-4 Mbps each way. Online gaming cares more about latency than raw speed. Aim for ping under 50 ms (under 20 ms is excellent), jitter under 30 ms, and 0% packet loss. High jitter or any packet loss causes lag, stutter, and dropped calls even when your Mbps looks high.
Browser tests run over HTTP/TCP inside a sandbox, which adds overhead and is sensitive to TCP slow-start, single-connection limits, and server distance. Dedicated apps can open many raw sockets to a nearby server and squeeze out higher peaks. We mitigate this with parallel streams, ramp-up exclusion, and a same-origin random-payload endpoint, but a browser test can still under-report on very fast links and is best used for relative comparison and stability tracking over time.
Yes. Above the history chart you get a min/avg/max statistics strip computed across your saved sessions, which instantly reveals connection stability (for example a large max-minus-min download spread or rising jitter that a single reading would hide). The Download CSV button exports the full session history (timestamp, download, upload, ping, jitter, packet loss, IP, ISP, and server) so you can attach it to a support ticket, spreadsheet, or SLA report.

