Page Performance Monitor

by Pratik Kushwaha · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Runs a lightweight performance monitor on the current tab when you click the extension icon.

Users

+16 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#100K

#83K among extensions

Version

1.3.1

updated 18 Mar 2026

Users

monthly, 7 months

Latest, 16 Oct 2026: 62 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months

Latest, 16 Oct 2026: 2 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Page Performance Monitor

Page Performance Monitor is a lightweight developer tool that shows real-time rendering performance directly on any webpage. When you click the extension icon, it displays an overlay containing: • FPS (frames per second) • Average / Min / Max FPS • Frame time metrics • Jank detection indicators • JavaScript heap usage • Runtime statistics The monitor helps developers analyze animation performance, rendering stability, and runtime behavior while testing web applications or games. The extension only runs when manually activated and does not collect or transmit any user data. Keyboard shortcuts: Alt + Shift + K → Show monitor Alt + Shift + O → Remove monitor Page Performance Monitor does not collect, store, or transmit any personal data. The extension runs locally in the user's browser and only displays performance information from the currently opened webpage. No browsing history, page content, or user information is transmitted to external servers.