Free online UMX to OGG converter

Source format: UMX

UMX is a Unreal Music package format used by older Unreal Engine games, especially titles from the late 1990s and early 2000s. It usually contains music data in a package wrapper rather than a simple standalone audio stream. In many cases, UMX files reference or embed tracker-style module music such as MOD, S3M, XM, or IT content, depending on how the game was built.

UMX files are mainly used by game modders, archivists, and retro gaming enthusiasts who want to extract or preserve in-game music. Because UMX is a game asset container, it is not broadly supported by standard audio players.

Target format: OGG

OGG usually refers to the Ogg Vorbis audio format, a compressed, open, and patent-friendly format designed for efficient music playback. It offers good sound quality at relatively small file sizes, making it a popular choice for games, streaming, and general audio distribution.

Compared with UMX, OGG is much easier to play on modern devices and media players. It is widely supported by operating systems, browsers, audio editors, and game engines.

How to convert UMX to OGG

The most reliable approach is to extract or decode the music from the UMX package and then save it as OGG. Because UMX is not a normal audio container, the conversion often depends on the exact contents of the file.

1. Identify the music inside the UMX file. If the file contains a tracker module, you may need a tool that can open Unreal package music or extract the embedded module first.
2. Use a compatible extractor or player. Tools such as Unreal Tournament package utilities, UMX extractors, or tracker players that support Unreal music can often open the file and reveal the underlying module or audio stream.
3. Export or render the audio. If the source is a tracker module, open it in a player or converter that supports module playback and export the rendered output to WAV or another uncompressed format first.
4. Encode to OGG. Once you have a playable audio file, convert it to OGG with a desktop audio tool such as Audacity, ffmpeg, or a tracker application that supports OGG export.

Example with ffmpeg after you have a decoded WAV file:

ffmpeg -i input.wav -c:a libvorbis output.ogg

If your UMX file can be opened directly by a compatible tool, you may be able to export straight to OGG or to an intermediate format first. On 101convert.com, you can convert the file online for free without installing any software, if the built-in converter supports your specific UMX file.

Notes on quality and limitations

UMX to OGG is not always a direct one-step conversion. Many UMX files are containers for tracker music, so the result depends on whether the embedded content can be decoded correctly. If the file uses unusual game-specific packaging or relies on missing instruments/samples, the exported audio may sound different from the original game playback.

For best quality, render the music at the original tempo and sample rate before encoding to OGG. Avoid repeated re-encoding, since each lossy conversion can reduce audio quality. If preservation matters, keep an uncompressed master such as WAV in addition to the final OGG file.