Compare Chrome extensions: Perfmap vs Performance-Analyser

Stats Perfmap Perfmap Performance-Analyser Performance-Analyser
User count 5,557+ 30,000+
Average rating 4.69 4.49
Rating count 13 43
Last updated 2014-10-25 2020-12-10
Size 148.48K 26.75K
Version 1.2 1.7.2
Short description
Heatmap of resources loaded in the browser using the Resource Timing API Get insight into the performance of the website in the current tab - sort of a mini live version of WebPageTest
Full summary

A front-end performance heatmap of resources loaded in the browser using the Resource Timing API.

The heatmap colours and the first ms value indicate at what point in the page load did the image finished loading. It's a good indicator of user experience. "It took 3450ms before the user saw this image." The second value in brackets is the time it took the browser to load that specific image.

The legend attached to the bottom of the page shows timings for the full page load and hovering over a coloured area on the heatmap will move the timeline indicator to show you when that image was fully loaded.

Code: https://github.com/zeman/perfmap

Performance-Analyser (aka Performance-Analyzer) helps to analyze the current page through the Resource, Navigation and User Timing APIs - see requests by type, domain, load times, marks and more - instantly.

Performance-Analyser is the Chrome Extension version of Performance-Bookmarklet.

Code: https://github.com/micmro/performance-bookmarklet