Speed Test with a Real-Time Graph
See your connection draw itself. SpeedOf.Me plots download and upload speed as a live graph while the test runs, and keeps a history of your results over time.
The quick test above gives you the numbers. To watch the full real-time graph draw live, run a test on the SpeedOf.Me homepage.
Why a real-time graph matters
A single number hides what your connection actually did. On the SpeedOf.Me homepage, the test draws your download and upload speed as a live curve while it runs, so you can see how the connection behaves, not just where it ended up. A line that rises and holds steady is healthy; one that spikes and collapses signals instability.
How to read your speed graph
- Smooth rising curve that flattens - your connection reaches a stable speed and sustains it. Ideal.
- Jagged, up-and-down line - fluctuation from congestion, Wi-Fi interference or a weak signal.
- Early peak then drop - the connection cannot sustain its burst speed, common on busy or throttled networks.
Because SpeedOf.Me increases the file size as it goes, the graph reflects real-world transfers rather than a momentary spike.
Track your speed over time
Every test is saved to a local history chart on your device, so you can compare today against last week, spot a pattern of evening slowdowns, and export the data as CSV. No account, and your results stay on your device.
Tip: run a few tests at different times of day. A graph that is fast at noon and slow at 8pm is a classic sign of network congestion.
Speed graph FAQ
What are download and upload shown in?
Megabits per second (Mbps), the standard unit internet plans are sold in. Latency and jitter are shown in milliseconds (ms).
Does watching the graph slow the test?
No. The graph is drawn efficiently in the browser and does not affect the measurement.
Why does the graph dip at regular intervals?
They're normal, not a fault. SpeedOf.Me steps up through progressively larger sample files and restarts its running average at each step, so the line dips and then climbs back to your real speed. Your final result comes from the largest completed sample, not these live readings, so the dips don't affect it. Only sustained, erratic swings across the whole graph point to real instability such as congestion or Wi-Fi interference.