A method and system is provided for facilitating ticket exchange by validating ticket authenticity. Images of the barcodes of tickets are captured and decoded so that the encoded ticket information may be analyzed. Encoded ticket information is compared to event ticket information stored in a ticketing database, and the result is transmitted to prospective buyers to ensure authenticity and establish confidence in the sale. Tickets may also be pre-validated by ticket holders or designated sellers of ticketing companies, who are located near the event venue. Buyers interested in purchasing tickets may locate pre-validated tickets using GPS.