Cardmarket Companion
The unofficial browser extension designed exclusively for the Cardmarket community
Say goodbye to manual data entry and hello to effortless pricing!
Install for Chrome/EdgeAlso available for Firefox
Features
Dynamic Price Prefilling
Automatically prefill your item prices with real-time trending data. Choose from trend data spanning 1, 7, or 30 days, or select between first and average price to stay competitive in the marketplace.
Listing Summary & Live Tracker
No more second-guessing! See a summary panel before listing a card with all details — card name, condition, price, and trend source. Track your progress in real-time with a panel showing how many cards you've listed and total value.
Pro Mode & Advanced Settings
Gain an edge with advanced controls: set minimum price values that automatically apply when trend prices fall below your threshold. Configure pricing strategies, update preferences, and customize the extension to match your workflow.
Enhanced Search View with Card Images
When browsing or searching, view actual card images instead of small icons. Makes it easier and faster to find the right card at a glance. Perfect for quickly identifying cards in your inventory.
Quick Access Menu & Controls
Access all features from a convenient extension menu. Copy and share your card lists with friends, teammates, or trading partners. Perfect for coordinating trades, deck builds, or showing off your collection. Get update notifications for new features.
Why Cardmarket Companion?
Seller's Secret Weapon
Gain an edge by leveraging the latest pricing trends. Make informed decisions that can lead to increased sales and profits.
Efficiency Boost
Save time by automating price inputs. Focus on growing your business while the extension handles the pricing details.
Unofficial Advantage
Built by sellers, for sellers. Enjoy the freedom to use Cardmarket Companion without constraints.
Privacy First
Your sensitive pricing data remains private and secure. We never compromise on data protection.
What Users Are Saying
Join thousands of satisfied Cardmarket sellers
Based on 30+ reviews
Amazing Supporters ☕
Thank you to everyone who has supported Cardmarket Companion!
Mana-Fortress
5 ☕
"Hey there, appreciate your extension very much, saves me a lot of time, which is a commodity I´m very fond of. Keep up the good work! Rick"
Ready to streamline your Cardmarket workflow?
Install Cardmarket Companion today and say goodbye to manual price entry forever.
Also available for Firefox