Chrome Local Storage

This Python package makes it easy to interact with Google Chrome local storage, either a locally-running browser or any remote browser that supports remote debugging (e.g. Chrome on Android via adb port forwarding).

Prerequisites

Installation is via pip:

pip install chrome-local-storage

Chrome must be running with the debugging port active for the library to connect. There are various methods to do this, for example, on Windows:

chrome.exe --remote-debugging-port=9222

And on MacOS:

/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --remote-debugging-port=9222

The library will also work on any mobile device that supports remote debugging on Chrome, For example, on Android, use the Android Debug Bridge to set up a port forward as follows:

adb forward tcp:9222 localabstract:chrome_devtools_remote

In all of the above examples, the debugger will be available at localhost:9222 which is what the library expects by default.

Usage

Basic usage is as follows:

import chrome_local_storage

local_storage = chrome_local_storage.ChromeLocalStorage()

local_storage.set('example.com', 'my-key', 'my-value')
value = local_storage.get('example.com', 'my-key')
print(value)

The first parameter in both get and set determines the page whose local storage will be used for the operation. The page must already be open in the browser, and it does not have to be an exact match to the whole URL as long as it's unique across open pages.

In a more complex example, two constructors connect to two different Chrome instances and copy Wordle statistics from one to the other (the desire to transfer my streak from one device to another was the original motivation for building this library).

chrome --remote-debugging-port=9222 "https://nytimes.com/games/wordle"
adb forward tcp:9223 localabstract:chrome_devtools_remote

import chrome_local_storage

laptop_storage = chrome_local_storage.ChromeLocalStorage(port=9222)
phone_storage = chrome_local_storage.ChromeLocalStorage(port=9223)

wordle_stats = laptop_storage.get('games/wordle', 'nyt-wordle-statistics')
phone_storage.set('games/wordle', 'nyt-wordle-statistics', wordle_stats)