> For the complete documentation index, see [llms.txt](https://astrumkb.gitbook.io/kb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://astrumkb.gitbook.io/kb/platforms-ad-and-measurement/meta-ads/meta-pixel.md).

# Meta Pixel

Meta Pixel is a tracking code that is placed on a website to monitor user activity, optimize ad campaigns and measure the effectiveness of advertising on Meta. It is a small piece of JavaScript code that allows website owners to track user actions such as page views, conversions, and purchases.