If you want to test your internet connection without relying on a Flash or Java applet, one of these HTML5 tools may suit your needs.

Navigate to the SpeedOf.Me HTML5 Internet speed test website (link in Resources) and click the "Start Test" button. Wait for the test to complete and the results to show on the chart.

List of free web browser benchmark test tools and speed testing online tools. Measure JavaScript, HTML5, etc, performances. Use Peacekeeper, Lite Brite, etc.

If you’re experiencing a sluggish internet connection, it’s probably time to check the speed. We’ll show you several ways to measure the speed of your internet connection using on-board ...

So you’ve read about our 4G speed tests, and now you want to know how your smartphone or cellular-modem speeds stack up to our results. You have a few easy ways to conduct such tests yourself ...

To use the built-in speed test feature, click the toolbar button (red toolbox icon) on the right sidebar. You'll see "Internet Speed Test" as the first option on the list.