OpenCoupon 作者： iFakerMaker

OpenCoupon is a transparent, community-powered browser extension that helps users find valid discount codes while shopping online. Unlike other coupon tools, OpenCoupon is fully open-source and focuses on privacy and community contributions.
Key Features:
Automatic Store Recognition: Instantly detects the store you are visiting and shows relevant coupons.
Share & Contribute: Easily submit new codes to help the community save money.
Community Voting: Upvote or downvote coupons to ensure only working codes remain visible.
Privacy-focused: No tracking, no ads, and no hidden data collection.