Performance Metrics icon

Performance Metrics

Established publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Displays system performance metrics (CPU & Memory) directly on the toolbar icon and integrates with DevTools for deeper insights.

Users
44
+2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#114K
#95K among extensions
Version
1.2.2
updated 16 May 2026

Users

monthly, 18 months
02244May 2025Feb 2026Oct 2026
Latest, 16 Oct 2026: 44 usersMove the mouse over the chart for any month

Ratings count

monthly, 18 months
001May 2025Feb 2026Oct 2026
Latest, 16 Oct 2026: 1 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 Performance Metrics

Performance Monitor is a comprehensive development tool that provides real-time insights into web application performance metrics. It helps developers identify bottlenecks and optimize their web applications through detailed monitoring and visualization. Key Features: • FPS (Frames Per Second) monitoring - Track page rendering performance • Memory Usage Analysis - Monitor JS heap usage and memory consumption • Network Activity - Track requests, data transfer, and resource timing • CPU Usage Monitoring - Real-time CPU utilization metrics • DOM Analytics - Monitor DOM elements, nodes, and event listeners • Layout Shift Tracking - Measure Cumulative Layout Shift (CLS) • Resource Timing - Track resource loading performance • Interactive Charts - Visual representation of all metrics • Real-time Updates - Continuous monitoring with 1-second intervals Perfect for: - Web developers optimizing application performance - Performance engineers conducting analysis - QA teams monitoring application behavior - DevOps monitoring production applications The extension integrates seamlessly with Chrome DevTools, providing a dedicated panel for all performance metrics.

Growth

WindowUsersChangeRatingsRating
7 days−1−2.2%00.00
30 days+2+4.8%00.00
6 months+10+29.4%00.00
1 year+24+120.0%00.00

Chrome Web Store search rankings

Where Performance Metrics appears when people search the store, with the 30 day change
Search phrasePosition30 days
performance#27+2

Version history

16 versions recorded
1.2.216 May 2026
1.2.04 Jan 2026
1.2.14 Jan 2026
1.1.920 Dec 2025
1.1.518 Dec 2025
1.1.618 Dec 2025
1.1.416 Dec 2025
1.1.310 Nov 2025

Details

Category
Developer Tools
First seen
2 May 2025
Size
307 KB
Languages
en-GB
Pricing
Free
Privacy policy
github.com
Extension ID
knoccpkihlinjbbegobnaldlkpmhamki

Permissions and risk

Moderate riskimpact 3, likelihood 1
Permissions
storagetabsactiveTabsystem.cpusystem.memory
Site access
<all_urls>
Can read and change data on every website you visit.

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