Convert M4A to OGG
Convert your M4A to Ogg Vorbis, the open, royalty-free format game engines expect. It re-encodes in your browser, and your file is never uploaded.
Why convert M4A to OGG?
OGG Vorbis is the default sound format across a lot of open-source software and game development. Unity and Godot both read Ogg for music and effects, so converting M4A to OGG is common when you are dropping AAC audio into a game project. It also fits open-source apps and Linux setups where Ogg is the natural choice over patent-encumbered formats. At a matched bitrate Vorbis often equals or beats MP3 on quality while staying royalty-free. The trade-off is consumer hardware and Apple devices, which support OGG less reliably than MP3 or M4A, so keep it for software that specifically asks for Ogg.
Quality and file size
M4A and OGG are both lossy, so this is a transcode, and re-encoding already-lossy AAC into Vorbis adds a small generation loss. To keep it clean, pick a higher quality setting (around 256 kbps or more) and avoid bouncing the same file between lossy formats over and over. Vorbis is efficient, so at a matched bitrate it holds up well, often as well as MP3 or better. Your OGG stays roughly the same size as the M4A. It will not sound better than the source, so treat this as a format change for compatibility, not a quality step.
M4A to OGG: common questions
Why convert M4A to OGG at all?
Mostly for game engines and open-source software. Unity and Godot expect Ogg Vorbis for audio assets, and many Linux and open-source apps prefer it over AAC.
Does the OGG lose quality compared to the M4A?
There is a small generation loss because you are re-encoding lossy AAC into lossy Vorbis. Use a higher bitrate like 256 kbps or more and avoid repeated round-trips to keep it hard to hear.
Will OGG play on my phone or in my car?
Support is spottier than MP3 or M4A, especially on Apple devices and car stereos. Keep OGG for game projects and software that asks for it, and use MP3 for general playback.
Does my audio leave my device?
No. The conversion runs entirely in your browser via FFmpeg compiled to WebAssembly. Nothing is uploaded, and we never see, store, or train on your file.
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.