RetroChecker

RetroChecker is the ultimate retro video game catalog and collection manager for Chrome. It covers over 75,000 games across 160 platforms, with value data, release history, box art, in-game videos, and manuals. You can search by platform, genre, release date, or value tier, browse media, and manage your collection with offline price charts.

A standout Retrolens feature helps you assess a collection's value at yard sales or flea markets. The extension supports seven currencies, links with eBay and Amazon, and privacy-first handling with easy data backups. Price data comes from pricecharting.com and mobygames.com to enrich every entry.