| Tool | Portable Available | GUI | Best For | |------|-------------------|-----|-----------| | | ✅ Yes | Simple | Windows users needing drag-and-drop batch AAC conversion | | foobar2000 + Encoder Pack | ❌ No (portable version exists but complex) | Advanced | Power users who also need playback | | Xrecode II Portable | ✅ Yes | Clean | Broad format support (incl. DSD, M4A, etc.) | | FFmpeg command line | ✅ Yes (no GUI) | None | Scripting and automation |
