Access detailed performance reports

Get insight into your content's responsiveness and efficiency. Record its activity over a period of time and drill down into a detailed overview, including a framerate graph and records for each event, such as a function call or a DOM operation. You can even zoom in on events in a specific slice of time.

devtools_perf-nar.original.png
devtools_ntwkperf2-nar.original.png

Learn to use the performance tool

Simulate the UX impact of network speed effects

Select a network speed condition, such as "Good 3G" and see how your site performs vis a vis download speed, upload speed and minimum latency.

devtools_ntwksim-nar.original.png

Learn how to simulate varied speeds

Analyze memory snapshots

Take a snapshot of your content's memory heap to account for memory usage and precisely identify where you allocate memory in your code.

devtools_memory-nar.original.png

Learn to use memory snapshots