Systems as described herein may enhance merchant databases using crowdsourced browser data. An electronic payment server may receive cache information associated with the first transaction from a browser extension. The electronic payment server may retrieve a transaction record for a second transaction in a transaction database, wherein the first transaction matches with the second transaction. The electronic payment server may update a merchant record in a private merchant database with a friendly merchant name based on the cache information. Upon determining that the merchant record in the private merchant database exceeds a threshold confidence level, the merchant record may be promoted to a trustworthy database, and the friendly merchant name may be presented to a user device.