JavaDroid

JavaDroid — Java IDE for Android Write, compile, run, and debug Java and Kotlin code directly on your phone or tablet. JavaDroid is a full-featured IDE that turns your Android device into a portable development environment — no computer needed. Code Editor • Syntax highlighting for Java, Kotlin, C++, XML, Gradle, JSON, Bash, and Markdown • Find & replace, word wrap, line numbers, auto-save • Split screen — edit two files side by side • Customizable fonts, colors, and editor settings • Auto-import — missing Java imports are added automatically • Code formatting on save Compiler & Runtime • On-device compilation via ECJ (Eclipse Compiler for Java) + D8 dexer • Maven project support — create projects, manage dependencies, package and test • Kotlin compilation via K2JVMCompiler with syntax highlighting • JNI / native C/C++ compilation via built-in TCC and NDK clang++ • Bundled android.jar — compile Android-compatible code Debugger • Set breakpoints on any line by tapping the gutter • Conditional breakpoints with custom expressions • Step over, step into, step out with stack depth tracking • Inspect local variables, call stack, and watch expressions • Evaluate arbitrary expressions at any breakpoint • Visual debug line highlighting Bytecode Viewer • View compiled Java bytecode in javap-style format • Browse class hierarchy, fields, methods, and instructions • Stack map frames, bootstrap methods, and annotations Learn Center • Built-in Java courses with bilingual support (Ukrainian/English) • Java reference: 15 chapters from basics to Stream API • Enterprise essentials: Concurrency, JVM Memory, SQL, JDBC, Web • Code examples you can run directly in the editor Git Integration • Full Git support via JGit — no root required • Init, clone, commit, pull, push, branches, log • Stage/unstage individual files Library Manager • Search Maven Central and add dependencies instantly • Browse versions and add to your project in one tap Tools • JSON/XML formatter with syntax highlighting • Markdown preview with code block highlighting • Native C/C++ module creation Localization • 11 languages: English, Ukrainian, German, French, Spanish, Polish, Romanian, Azerbaijani, Hindi, Igbo, Yoruba, Hausa Requirements • Android 8.0 or higher • Internet connection for Maven dependencies and Git operations