Due to COVID-19, all shipping is experiencing significant delays. One of the benefits of COMC is you can ship all your items at once at a later date. After you've placed your shipping request we are unable to combine shipments requested on different days.
Shop from 22,446,954 total and 7,149,853 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!

22 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

eBay 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. COMC listings are automatically posted to eBay!

Sell Cards

The Safe and Easy Way to Buy and Sell Cards Online

Shop Recently Added

2018 Topps Living Set - Online Exclusive [Base] #1

Aaron Judge /13256

1969 Topps - [Base] #237

Bobby Cox

2019 Topps Heritage High Number - [Base] #519.1

Pete Alonso (Batting Pose) [PSA 10 GEM MT]

2018 Panini USA Baseball Stars & Stripes - CNT Signatures - Black Ink #AV

Andrew Vaughn /499

2013 Topps - 1972 Topps Minis #TM-4

Mike Trout [PSA 10 GEM MT]

2012 Panini Prizm - [Base] #60

Peyton Manning [EX to NM]

1989 Topps Traded - [Base] #30T

Deion Sanders [PSA 10 GEM MT]

2015 Topps Finest - 1995 Rookie Refractor - Green Refractor #95FRR RW

Russell Wilson /299

2010 Topps - [Base] - Gold #148

Rob Gronkowski /2010

2018 Panini Donruss - The Elite Series Rookies #ESR-17

Lamar Jackson

2019-20 Upper Deck Synergy - Cast for Greatness #CG-7

Carter Hart

2017-18 Upper Deck - [Base] - Exclusives #454

Young Guns - Adin Hill /100

2019-20 SPx - UD Black Obsidian Script #OS-NS

Rookies - Nick Suzuki

2016-17 Ultimate Collection - 2006-07 Retro Rookie Auto #RRA-MB

Tier 1 - Mathew Barzal /199

2019-20 Upper Deck Black Diamond - Rookie Team Logo Jumbos #RTL-KK

Kaapo Kakko

2019-20 Panini Donruss Optic - [Base] - Holo Prizm #164

Rated Rookies - Sekou Doumbouya

2019-20 Panini Prizm Draft Picks - [Base] - Pink Pulsar Prizm #2

Ja Morant

2019-20 Panini Prizm - [Base] - Orange Ice Prizm #255

Rui Hachimura

2018-19 Panini Prizm - [Base] - Silver Prizm #66

Jaren Jackson Jr. [PSA 10 GEM MT]

2018-19 Panini Prizm - [Base] #78

Trae Young [PSA 10 GEM MT]

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.