Consumers abandon their online purchases at an e-commerce website partly due to the lack of information transparency of the website. We identify the antecedents of consumers’ perceived information transparency of an e-commerce website and its effects on consumers’ online purchase intention. We collected data through a scenario-based survey conducted in a laboratory setting. We found that (1) product transparency, vendor transparency, and transaction transparency significantly influence perceived information transparency; (2) perceived information transparency significantly increases consumers’ online purchase intention; and (3) perceived risk partially mediates the effects of perceived information transparency on purchase intention.