Unit Price Helper
Chrome extension that overlays unit pricing on major grocery retailers
Online grocery stores rarely expose unit prices in a consistent way. Unit Price Helper tackles that pain point by injecting price-per-unit badges across Harris Teeter, Costco, Target, and more.
What It Does
- Parses product grids and detail pages, normalizing quantities (fl oz, count, lb) into a comparable base unit.
- Renders inline badges using lightweight DOM patches so shoppers can immediately see which option is more economical.
- Auto-updates retailer-specific scraping logic through a small ruleset that ships as part of the extension package.
Try It Out
- Clone the repo, run
npm install, and load thedist/folder into Chrome’s developer mode. -
Consider adding a screencast at
assets/img/projects/unit-price-helper/demo.gifto showcase side-by-side price comparisons: