Convert OGG to M4A
Convert an OGG file to M4A (AAC in an MP4 container) for the Apple ecosystem. It runs in your browser, so your audio never leaves your device.
Why convert OGG to M4A?
OGG (Vorbis) turns up a lot in games and open-source software: Godot and Unity projects, browser recordings, and downloads from sites that favor the open Ogg container. Apple gear does not handle it well. iTunes, Apple Music, and the iPhone all expect AAC in an M4A container. Convert OGG to M4A when you want a file that imports cleanly into your Apple Music library, syncs to an iPhone or iPad, and sits next to your voice memos and other AAC audio without a fight. It is the natural landing format for OGG audio headed into an Apple workflow.
Quality and file size
OGG and AAC are both lossy, so this is a transcode: it adds a small generation loss on top of what Vorbis already discarded. AAC is efficient and holds up well, but you should still choose a healthy bitrate like 256 kbps to keep the result clean. Try not to keep bouncing the same audio between lossy formats, because each pass compounds the loss a little more. For a single OGG to M4A conversion at a sensible bitrate, the difference is very hard to hear.
OGG to M4A: common questions
Is M4A better than MP3 for this?
At the same bitrate AAC is generally more efficient than MP3, especially below 192 kbps, and it is the native choice for Apple devices. If your target is an iPhone or Apple Music, M4A is the better fit.
Will I lose quality converting OGG to M4A?
There is a small generation loss because you are re-encoding already-lossy audio into another lossy format. Choose 256 kbps and convert only once, and it will be very hard to hear.
Does my file get uploaded?
No. The conversion happens entirely in your browser using FFmpeg in WebAssembly. Your OGG is never uploaded, and we never see it, store it, or train on it.
Will this play on non-Apple devices?
Mostly yes. M4A is widely supported on modern phones and players, though it is slightly less universal than MP3 on very old hardware. If you need maximum compatibility, MP3 is the safer bet.
Who makes this?
We're the small team behind Xport Studio, a private, fully offline app for AI vocals, stems, and mastering. These free tools are side experiments we wanted to share. No upsell, but if you're curious about the bigger thing, take a look.