Micro, Small, and Medium Enterprises (MSMEs) in Surabaya encounter persistent challenges in conducting objective evaluations of employee performance. To address this issue, the present study introduces the application of the Behaviorally Anchored Rating Scale (BARS), employing both qualitative and quantitative approaches supported by Information Technology (IT). BARS enables performance appraisal based on specific and observable work behaviors, thereby mitigating subjectivity and enhancing the fairness of evaluations. The integration of IT further streamlines data collection processes while reducing administrative complexity. In this study, an open-source web-based application was developed and customized to align with the operational requirements of MSMEs. The primary objective is to design and implement a performance evaluation system grounded in BARS and IT, supporting MSMEs in the formulation of realistic performance benchmarks and more effective human resource management practices. The research methodology adopts the ADDIE Research and Development model, encompassing the phases of analysis, design, development, implementation, and evaluation. System reliability was assessed through black box testing, with results indicating validity and consistency across all scenarios. The findings confirm the successful deployment of a multi-user web application capability in facilitating efficient, accurate, and systematic employee performance evaluations within MSMEs