How do I view the storage of a Chrome Extension I&

Question

It seems like it should be possible to view the localStorage/chrome.storage of Chrome Extensions installed on my browser. I've played around with the Developer Tools a bit, but haven't found a way to do this. Any ideas?

Answer 1

This was actually two questions!

1. How do I view localStorage of a Chrome Extension I've installed?

Open the Chrome Devtool by clicking on the background page of an extension in Chrome://extensions/ (Developer mode needs to be checked to see background pages), then in resource panel you can see the local storage on the left. (by chaohuang and Kil)

2. How do I view chrome.storage of a Chrome Extension I've installed?

In the same console of the background page:

• For storage.local (by mwkwok)

chrome.storage.local.get(function(result){console.log(result)})

• For storage.sync

chrome.storage.sync.get(function(result){console.log(result)})

Answer 2

I didn't get any results using the provided code typed into console. But this code worked when put into the console.

chrome.storage.sync.get(null, function (data) { console.info(data) });

The difference here is that we pass a null value which will return all content in the storage. To back this up, and for additional reading, check out the official chrome page on this API.

Answer 3

I will proceed to amalgamate the existing knowledge present in several answers, into a simple and comprehensive one. If you vote up this one, please do the same with the ones from @mwkwok and @chaohuang.

It is true that stuff saved using chrome.storage does not show up in developer tools, there you can only see stuff saved using regular localStorage API. Do this:

1. Open your extension's background page by going to chrome://extensions/ ("Developer mode" needs to be checked to see background pages)

2. Go to the Console tab and type this:

chrome.storage.local.get(function(result){console.log(result)})

This will spit the whole storage as a JSON object into the console.

Answer 4

There is a very helpful extension to work with both localStorage and chrome.storage that I recently discovered, that works as a Dev Tools panel.

Storage Area Explorer

I did not write this, but it was suggested by the author on some other SO question.

Answer 5

You're right that chrome.storage does not show up in developer tools. The only way I've found to view all of it is by putting this into console:

chrome.storage.local.get(function(result){console.log(result)})

This will spit the JSON object into console.

Answer 6

Open the Chrome Devtool by clicking on the background page of an extension in Chrome://extensions/ (Developer mode needs to be checked to see background pages), then in resource panel you can see the local storage on the left.