Royalty is a browser extension that saves you money on the products you love. Royalty searches the internet for coupon codes and applies them automatically to find the best deal for you. In addition, Royalty also provides prices from other retailers and price history charts so you can make an informed purchasing decision when shopping online!
- Scrapes the web to find relevant coupons for supported websites.
- Automatically applies the best coupon when possible to save you time and money.
- Adds a price graph directly onto product pages using the Chrome sidepanel.
- Shows historical pricing trends so you can decide when to buy.
- Identifies the same product across multiple retailers.
- Displays prices side-by-side so you know where to get the best deal.
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Website: https://www.joinroyalty.app
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Chrome Web Store: https://chrome.google.com/webstore
To build and run Royalty locally, make sure you have the following installed:
- TypeScript
- pnpm (preferred over npm or yarn)
1. Clone the repository
git clone https://github.com/your-username/royalty.git
cd royalty2. Install dependencies
pnpm install3. Start development mode (for hot reload while editing)
pnpm devOr build for production:
pnpm build4. Load the extension into Chrome manually
- Open `chrome://extensions/` in your browser.
- Enable Developer Mode (toggle in the top-right corner).
- Click Load Unpacked.
- Select the `dist/` folder inside the project directory.
autoApplyDemo.mp4
sidebarDemo.mp4
Based on Chrome Boilerplate by Jonghakseo