Network Speed Test
Test your internet connection performance right in your browser. Measure download and upload speed, latency, jitter, and connection quality — all locally, with no data sent to external servers.
Browser PrecisionMedium
Connectivity and latency via fetch. Results vary with current network conditions.
Frequently Asked Questions
How is download speed measured?
The test downloads a file from a public CDN and measures how long the transfer takes. Speed is calculated as file size divided by transfer time.
What is jitter?
Jitter measures the variation in latency between successive requests. Low jitter means a stable connection; high jitter indicates inconsistent performance.
Is the speed test result accurate?
Browser-based speed tests provide a useful estimate but are less precise than dedicated tools. Results are affected by browser overhead, TLS handshakes, and concurrent network activity.