Speed test in
one click.
No more navigating to speed test websites on slow connections. SwiftCheck lives in your toolbar — click, test, done. Results in real MB/s.
“Why is my download slower than my speed test?”
It usually is not. Speed tests report megabits; your browser reports megabytes. There are 8 bits in a byte, so a 100 Mbps line downloads at about 12.5 MB/s — working exactly as advertised. SwiftCheck reports MB/s so the number matches what you actually see.
Read the full explanationBuilt different.
No bloat, no accounts, no data harvesting. Just a speed test that works.
Real MB/s
See speeds in MB/s — the unit your browser actually uses. No more Mbps-to-MB/s mental math.
Under 30 Seconds
Full test — ping, download, upload — completes in under 30 seconds. No loading screens.
Zero Data Collection
No analytics, no tracking, no accounts. Your results stay on your device. Period.
Cloudflare Powered
Tests run against Cloudflare's global edge network — the same infrastructure used by millions of sites.
Live Speedometer
Animated analog dial with real-time needle movement and jitter simulation. Feels like a real gauge.
Fully Open Source
Plain HTML, CSS, JS — no build tools, no dependencies. Read every line, fork it, make it yours.
Three steps. That's it.
Install
Add SwiftCheck from the Chrome Web Store. One click, zero config.
Click
Hit the toolbar icon. The speed test starts instantly — no pages to load.
Results
See ping, download, and upload in real MB/s on an animated dial. Done.
Stop waiting for
speed test websites.
Your next speed test is one click away. Free forever, no strings attached.