Network Speed Tester
Measure your download speed, upload speed, and ping latency — right in your browser.
Press Start Test to measure your connection.
How to use the Network Speed Tester
This tool measures your real connection speed by transferring data to and from a nearby test server, entirely from your browser. No app, extension, or sign-up is required.
- 1
Click "Start Test"
The test runs automatically in three stages: ping, download, and upload. Each stage updates its result tile live as it runs.
- 2
Ping and jitter are measured first
Several small round-trip requests measure how long a request takes to reach the test server and come back (ping), and how much that time varies between requests (jitter).
- 3
Download and upload run next
The tool downloads, then uploads, a block of data and measures the transfer rate in megabits per second (Mbps). For the most accurate reading, avoid running other downloads, uploads, or video calls while the test is in progress.
Frequently asked questions
How does this speed test work?
Your browser downloads and uploads blocks of data directly to a nearby Cloudflare network testing endpoint and times how long each transfer takes. The transfer size divided by the time gives the speed in megabits per second (Mbps). Nothing is sent to or stored on Parakle' own servers — the transfer happens directly between your browser and Cloudflare's network.
Why do my results vary between runs?
Network conditions fluctuate constantly — Wi-Fi interference, other devices on your network, ISP congestion at peak hours, and the specific test server your request happens to reach can all shift the result by a meaningful margin. Run the test a few times at different moments for a more representative picture rather than trusting a single run.
What is the difference between Mbps and MB/s?
Mbps (megabits per second) is the standard unit ISPs advertise. MB/s (megabytes per second) is what file download progress bars usually show. There are 8 bits in a byte, so divide Mbps by 8 to get MB/s — a 100 Mbps connection tops out around 12.5 MB/s in a file download.
What are ping and jitter?
Ping (or latency) is the round-trip time for a small request to reach the server and return, in milliseconds — lower is better, and it matters most for video calls, gaming, and anything interactive. Jitter is how much that ping time varies from one request to the next; high jitter causes choppy calls and unstable connections even when average ping looks fine.
Why is my upload speed lower than my download speed?
Most residential internet plans (cable and DSL in particular) are asymmetric by design — they allocate far more capacity to download than upload, since typical usage (browsing, streaming, downloads) is download-heavy. Fiber connections are more often symmetric, with similar download and upload speeds.
Will a VPN affect my results?
Yes. A VPN routes your traffic through an intermediate server, which typically adds latency and can cap throughput below your real connection speed. Disable it before testing if you want to measure your actual ISP connection rather than the VPN's performance.