Overview
Better charts on Cardmarket product pages: daily 1/7/30-day averages, availability, sales estimate, dark mode.
This extension replaces the default chart on Cardmarket product pages with bigger, more detailed price and availability charts. Works for the most common TCGs. What does it show? 📈 1-day, 7-day and 30-day average price with one value per day. No more gaps, even for cards nobody has looked at in months. 📦 Number of available items over time 🔢 Sales estimate: how many copies were probably sold on a given Day. This is an estimate based on how the available count changes, not an official number. ⏱️ 30 days, 90 days, 1 year or everything 🌙 Dark mode, following the Cardmarket setting Optional features ✅ Community data sharing (on by default): sends the number of available items of the product pages you open, together with the product ID. Nothing else. ✅ Background sampling (off by default): additionally collects the available count for cards in the background while you browse, at most once a minute. Both can be switched on or off in the popup at any time. Privacy No account needed No tracking, no cookies, no user ID The only thing ever sent is the product ID and a number of available items Prices are not read from your browser Not affiliated with Cardmarket.
Details
- Version2.0.0
- UpdatedOctober 16, 2026
- Size125KiB
- LanguagesEnglish (United States)
- Developer
Email
Matras.Cardmarket@gmx.de - 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