Dalvik Executable format — compiled bytecode for the Android runtime.
| 0x00000000 | 6465780A | dex· | 'dex' + newline |
A DEX file packs all the compiled classes of an Android app into a single bytecode file for the Dalvik/ART runtime, bundled inside every APK. The header is 'dex\n' followed by a version and a NUL.
Have a file that might be Android DEX? Identify it with the File Type Identifier — it reads the magic number locally, nothing is uploaded. Or browse all formats.