Things You'll Need
Instructions
Gather your Beanie Babies and look them over carefully. Make a complete inventory of your collection, paying particular attention to their condition. Typically, only those in mint condition -- no dirt or marks, pristine tag -- are of enough interest to collectors that they may pay more than the original retail price.
Look up your particular Beanie Babies in the commercially produced collectors' guides. These books will give you approximate values based on the condition of the animal, its popularity with collectors and how rare it is. However, since the values fluctuate so much over time, these guides are out of date almost as fast as they are printed. Use them only as a general benchmark, not a definitive appraisal.
Review the online Beanie Baby club and collectors' sites, such as the World of Ty (world.ty.com). These provide a solid idea of what any given Beanie is worth on the current collectors' market.
Go to a public auction site, such as ebay (ebay.com). Look up the Beanie Babies you want appraised; note the most recent prices collectors have been willing to spend on each one. Do not focus on the asking price, since collectors seldom get what they originally ask for a given animal. The most accurate free appraisal of one of your Beanie Babies' value is the most recent price someone has paid for that specific Beanie Baby, assuming they are in comparable condition.