The application of Digital Library (DL) has now become a trend in managing digital-based library services. There are problems that are still felt in the management of DL, namely the design and implementation that are still unsatisfactory. This study aims to create a DL design using the Bootstrap 4.0 framework for schools. The method used is the System Development Lyfe Cycle (SDLC) with a case study design at SMPN 5 Ponorogo. This research resulted in a DL application at SMPN 5 Ponorogo. This research contributes practically by producing a DL application at SMPN 5 Ponorogo.