Program comprehension activities account for up to 58% of developers’ time, a figure that is likely even higher in multi-language codebases due to increased cognitive load and context switching. For example, combining Java and C++, usually through the Java Native Interface (JNI), is a common way to build high-performance applications. However, this hybrid approach creates significant challenges for novice developers, who must navigate the complex and error-prone boundary between Java’s managed environment and C/C++’s native code. To address this, we present CrossLink, which combines static analysis with interactive visualizations. It features a cross-language dependency graph that shows dependency links and in-editor annotations that display the status of JNI calls in real time. The tool also supports cross-language refactoring and offers rule-based suggestions to improve code quality by naming numeric constants. The artifacts of this tool is available at https://github.com/Rishalab/CrossLink and it’s demo can be watched here https://youtu.be/ZB3VUi8-hW8