The following API modules provide support for extending
Chrome Developer Tools:
How to use DevTools APIs
Specify the "devtools_page" field in your extension's manifest:
An instance of the devtools_page specified in your extension's manifest
will be created for every Developer Tools window opened. The page may add
other extension pages as panels and sidebars to the Developer Tools window
The chrome.devtools.* API modules are available only to the
pages loaded within the Developer Tools window. Content scripts and other
extension pages do not have these APIs. Thus, the APIs are available only
through the lifetime of the Developer Tools window.
- The APIs available to extension pages within the Developer Tools
window include all devtools modules
listed above and chrome.extension API.
Other extension APIs are not available to the Developer Tools pages, but
you may invoke them by sending a request to the background page of your
extension, similarly to how it's done in the
There are also some Developer Tools APIs that are still experimental.
Please refer to chrome.experimental.* APIs
for the list of experimental APIs and guidelines on how to use them.
Give us feedback!
Your comments and suggestions help us improve the APIs.
For information on the standard APIs that extensions can use, see
chrome.* APIs and
You can find examples that use Developer Tools APIs in