In today’s digital landscape, the management and trading of personal data have emerged as critical issues, particularly concerning privacy, security, and economic value. The traditional centralized model of personal data trading has significant drawbacks, including a lack of transparency, user control, and equitable compensation, leading to privacy violations and data breaches. This paper introduces a blockchain-enabled platform for personal data trading that leverages smart contracts, RSA-encrypted NFTs, and IPFS to enhance transparency and user control. The system was evaluated on four EVM-compatible blockchain platforms–Binance Smart Chain, Polygon, Fantom, and Celo–focusing on key functionalities such as data transaction recording, RSA-encrypted NFT creation, and secure NFT transfer. The evaluation provided insights into transactional efficiency, resource utilization, and economic aspects. Our findings suggest that the proposed platform can significantly improve the management and trading of personal data by ensuring data integrity and equitable value distribution.