Overview
Chrome extension to prevent duplicate game purchases
Stop Before You Buy: Never Buy a Game You Already Own Stop Before You Buy is a free Chrome extension that prevents you from accidentally purchasing games you already own on other platforms. By integrating with your unified GOG Galaxy library, this extension provides a clear warning on store pages if a game is already in your collection, saving you money and hassle. The extension works by checking the games you are Browse on popular online game stores against a local copy of your game library. When it detects that you already own the game, it will display a notification, as seen in the screenshots. To build its database, "Stop Before You Buy" relies on importing CSV file generated from your GOG Galaxy client. GOG Galaxy is a free application that allows you to connect and manage all your games from different platforms like Steam, Epic Games Store, Ubisoft Connect, and more, all in one place. How to use 1. Install this extension 2. Install GOG galaxy and sync all your accounts (Steam, GOG, Epic) 3. Use this script (https://github.com/AB1908/GOG-Galaxy-Export-Script) to export the library to a CSV file 4. Import the CSV file in the extension
Details
- Version0.1.0
- UpdatedJune 27, 2025
- Offered byfenghaolw
- Size38.65KiB
- LanguagesEnglish (United States)
- Developer
Email
fenghaolw@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
