Introduction: Proper nutrition for premature babies is vital for optimal growth. However, a lack of confidence and knowledge among parents causes them to search for online information which may sometimes be misleading or unreliable. The primary objective of this study is to develop a validated website as an educational tool for parents about nutrition for premature babies. Methods: This study was conducted by referring to the Waterfall Software Development Life Cycle (SDLC) model, which consists of five main stages. Stages one to three are related to the development of the website, namely, the requirements stage, design stage and implementation stage. This is then followed by a testing stage where 11 expert panels evaluated the content and face validity of the website. The final stage is the maintenance stage. Results: The website was developed with nine topics. The value of Item Content Validity Index (I-CVI) for every item exceeded the minimum value of I-CVI (0.78), the value of the content validity index by scale, average (S-CVI/Ave) is 0.98, and the content validity index by scale, universal agreement (S-CVI/UA) is 0.83. Both S-CVIs have exceeded the minimum value, which is 0.90 and 0.80 respectively. The value of Krippendorff's Alpha (Kalpha) for the overall section of face validity is 0.53, which does not achieve the minimum acceptable value of Kalpha (0.67). Conclusion: The content validation has high agreement among the expert panels. However, the interphase, layout, and design of the website need to be improvised.