AudioUtils

No upload · No server · Open-source OGG Vorbis

OGG Converter

Convert MP3, WAV, FLAC, M4A, AAC, WMA, or AIFF to OGG Vorbis -- or convert OGG to any format. Everything runs in your browser using WebAssembly. No uploads, no signup. Free.

About the OGG Vorbis Format

OGG Vorbis is a free, open-source, patent-free audio codec developed by the Xiph.Org Foundation. Unlike MP3 (which was encumbered by patents until 2017) and AAC (still patent-licensed), Vorbis has always been completely free to use and distribute. This makes it the format of choice for open-source software, Linux distributions, and game engines.

OGG Vorbis is a lossy format that achieves excellent quality-to-size ratios. At quality level 5 (~160 kbps variable), most listeners cannot distinguish it from the original. At quality level 8 (~256 kbps), it is transparent to essentially all listeners. These figures compare favorably to MP3, which typically needs 192--320 kbps for similar transparency.

The main limitation of OGG Vorbis is Apple ecosystem support. iPhones, iPads, and Macs do not natively play OGG files -- you will need a third-party app or convert to M4A/AAC. For everything else -- Android, Windows, Linux, web browsers, and game engines like Unity and Godot -- OGG is an excellent choice.

Convert OGG files without uploading them

Most OGG converters require you to upload your file to a remote server. That means your game audio assets, music demos, and recordings pass through infrastructure you do not control. AudioUtils uses FFmpeg compiled to WebAssembly, which runs 100% inside your browser. Your files are processed entirely on your device -- they never leave your machine. No server logs, no third-party storage, no privacy risk. The conversion is as fast as your CPU, without any upload wait time.

When to use OGG Vorbis

Game development (Unity, Godot, Unreal)

OGG Vorbis is the dominant audio format in game development. Unity imports OGG natively and compresses it efficiently at runtime. Godot uses OGG as its primary streaming audio format. File sizes are small without the patent overhead of MP3.

Web audio and HTML5

All modern browsers except Safari support OGG Vorbis playback natively. For web audio, OGG provides better quality than MP3 at the same file size. Serve OGG to Chrome/Firefox users and MP3 as a fallback for Safari.

Linux and open-source software

OGG is the native format for many Linux media players and applications. Rhythmbox, Amarok, and VLC all handle OGG natively. If you are distributing audio for Linux-first audiences, OGG is the natural choice.

Android apps

Android has supported OGG Vorbis since Android 1.0, making it a reliable format for Android app audio assets. Many Android game developers prefer OGG over MP3 for its better compression efficiency.

Frequently Asked Questions

Is this OGG converter free?

Yes. AudioUtils is free to use. The free tier outputs a 10-second preview of your converted file. Pro ($9/mo) removes the limit so you can convert full-length files up to 500 MB.

What formats can I convert to OGG?

You can convert MP3, WAV, FLAC, M4A, AAC, WMA, AIFF, and Opus to OGG Vorbis. All conversions run entirely in your browser using FFmpeg WebAssembly — nothing is uploaded.

What is OGG Vorbis and when should I use it?

OGG Vorbis is a free, open-source lossy audio codec. It is the preferred format for game audio (Unity, Godot), web streaming, and open-source applications. At the same bitrate it typically sounds better than MP3 and uses no patents. It is not widely supported on Apple devices — use M4A/AAC for those.

Does OGG Vorbis support stereo and surround sound?

Yes. OGG Vorbis supports up to 255 audio channels, making it suitable for stereo music, 5.1 surround game audio, and multi-channel recordings. Most games use mono or stereo OGG files to keep asset sizes small.

Will converting to OGG reduce quality?

OGG Vorbis is a lossy format, so some quality is lost during encoding. However, Vorbis is generally more efficient than MP3 -- a 192 kbps OGG file typically sounds better than a 192 kbps MP3. Converting from one lossy format (MP3, AAC) to OGG introduces generation loss, so always convert from a lossless original (WAV, FLAC) when possible.