Shop from 17,683,016 total and 5,384,845 unique sports cards. Baseball, Football, Hockey, and Basketball.

Ideal for Set Builders & Player Collectors

Build one order over time from multiple sellers, pay shipping once, and receive your cards in one package.

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Flat Rate Shipping

Buy now, ship later! Purchase over time from many sellers & ship once!

17 Million Cards Under One Roof

We house millions of sports cards from thousands of sellers and provide industry renowned customer service!

High resolution scans of the front & back of every card.

Easy & Fun Sports Card Flipping

Filter by team, player, set & more. Purchase, instantly relist, & flip for profit.

Buy Baseball Cards Online

We Do The Work To Sell Your Cards

Research & identify your collectibles

Evaluate condition & value

Scan the front & back of every card

Advertise to find buyers

Store & insure consigned collectibles

Resolve customer service needs

Securely package & ship to buyers

We Have Other Unique Services

Mailbox Services

Grading Services

Amazon Integration

Historical Sales Data

Sell Baseball Cards Online

A Different Way to Sell Cards

We identify, scan, list, store, insure, package, and ship - just send us your sports cards, trading cards, and collectibles. All COMC listings can be automatically posted to Amazon!

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The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

1966 Topps - [Base] #500

Hank Aaron

2017 Topps Chrome - [Base] - Refractor #79

Cody Bellinger

2014 Topps Prime - Prime Patches #PP-JG

Jimmy Garoppolo

2015 Score - [Base] #6.2

Tom Brady (Blue Jersey)

2014 Panini Playbook - Xs and Os Die-Cut Materials #XO-MS

Malcolm Smith /99

1961 Fleer - [Base] #171

Billy Cannon

1996 Bowman's Best - [Base] #164

Ray Lewis

2017-18 Upper Deck - [Base] #201

Young Guns - Nico Hischier

2016-17 Upper Deck Black Diamond - Exquisite #42

UD Ice - Legends - Steve Yzerman /99

2013-14 Panini Dominion - [Base] #136

Viktor Fasth /299

1995-96 Upper Deck Be a Player - [Base] - Autographs [Autographed] #S195

Felix Potvin

2015-16 Upper Deck - Rookie Materials #RM-AP

Artemi Panarin

2014-15 Panini Prizm - Autographs - Blue Pulsar Prizms #51

Monta Ellis /149

2015-16 Panini Donruss - Studio Series Rookie Jerseys #19

Kristaps Porzingis

2013-14 Panini Prestige - [Base] #175

Giannis Antetokounmpo

2017-18 Panini Donruss Optic - [Base] - Retail Wave #188

Rated Rookies - Donovan Mitchell

1998-99 Upper Deck Black Diamond - [Base] - Triple Diamond #9

Michael Jordan /1500

COMC (Check Out My Collectibles) is a unique marketplace for buying and selling sports cards, gaming cards, comics, and more. We have a great selection of singles, memorabilia cards, autographed cards, and rookie cards. Our listings include front and back scans of every card. We're also a great place to sell cards. Do you want to know more about card values? Learn about our suggested prices.