Free Internet Speed Test That Runs in Your Browser

I built a speed test that runs entirely in your browser — no app download, no Java plugin. How it works Click Start Test Measures latency (ping to nearest CDN) Downloads test payloads to measure throughput Shows results: download speed (Mbps), latency (ms), and rating Speed Ratings Speed Rating Good For < 5 Mbps Slow Basic browsing 5-25 Mbps Moderate HD streaming 25-100 Mbps Fast 4K streaming 100+ Mbps Very Fast Everything Run Speed Test No download. No ads. Instant results. More tools: Download Time Calculator DNS Lookup Screen Resolution Full toolkit: devtools-site-delta.vercel.app