stock-helper is a free Chrome extension developed by jackliulovelt. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension is designed to assist users with managing and tracking China stocks.

With stock-helper, users can easily add China stocks to their portfolio. The extension allows users to set the cost price and number of shares held for each stock. It also provides real-time stock prices, price changes, ups and downs, profit and loss, today's open, highest price, lowest price, cost, and positions.

One of the key features of stock-helper is the support for fuzzy matching by stock name and stock code. This makes it convenient for users to search for specific stocks without exact match requirements. Additionally, the extension offers SVG charts for visualizing stock data and supports custom settings for a personalized user experience.

stock-helper also provides a dynamic update progress bar, allowing users to view the progress of data updates in real-time. The extension supports custom (manual) sorting, giving users the ability to organize their stock portfolio according to their preferences. Furthermore, users can scroll through a news list and edit costs and positions as needed.

Overall, stock-helper is a useful Chrome extension for users interested in managing and tracking China stocks. It offers a range of features and customization options to enhance the stock management experience.