Shop from 17,691,235 total and 5,386,417 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.

Buy Cards

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!

Sell Cards

The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

2014 Bowman Platinum - Autographed Relics - Blue Refractor #AR-MM

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Tom Seaver

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Cornelius Randolph

2018 Topps Living Set - Online Exclusive [Base] #34

Gleyber Torres /28500

1974 Topps - [Base] #456

Dave Winfield

2016 Panini Day - [Base] #51

Ezekiel Elliott /699

2012 Topps Magic - [Base] - Autograph [Autographed] #215

T.Y. Hilton

1959 Topps - [Base] #68

Baltimore Colts Team

1991 Topps Stadium Club - [Base] #94

Brett Favre

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Antonio Brown /93

2012-13 Upper Deck - [Base] #285

Ray Whitney

2015-16 Upper Deck Ultimate Collection - Ultimate Rookie Auto Booklet Relics #RBR-RF

Tier 1 - Robby Fabbri /99

2017-18 O-Pee-Chee Platinum - [Base] - Rainbow Color Wheel #200

Marquee Rookies - Nolan Patrick

1986-87 Fleer - [Base] #131

James Worthy

2012-13 Panini Marquee - Legends Signatures #45

Dale Ellis

2006-07 Bowman Sterling - [Base] #29

Magic Johnson

2014-15 Panini Prizm - [Base] - Green Prizms #251

Andrew Wiggins

1975-76 Topps - [Base] #77

Bill Walton

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.