Sexy, fast, and themable FPS meter.
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Latest commit 2f6b8f8 Dec 28, 2014
darsain Merge pull request #7 from manpages/master
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Simple JavaScript library for sexy, fast, and themable FPS meter. It can measure:

  • frames per second
  • number of milliseconds between frames
  • number of milliseconds it takes to render one frame

FPSMeter uses to more accurately measure rendering timing, with a fallback to +new Date().

The actual display rendering is optimized and chained to requestAnimationFrame (with a polyfill for older browsers), so it should be as smooth and as fast as possible. It also supports multiple instances on one page, has show/hide methods that also pause the rendering, and color heatmaps that make themes even more pretty!




Works in IE7+ and all modern browsers.


FPSMeter upholds the Semantic Versioning Specification.


Latest stable release:

When isolating issues on jsfiddle, you can use this URL:


  • Calling - how to call FPSMeter, plus usage examples
  • Options - all available options
  • Properties - accessible FPSMeter object properties
  • Methods - all available methods, and how to use them
  • Theming - how to theme FPSMeter


Please, read the Contributing Guidelines for this project.