MP3 to OGG Converter

Convert MP3 to OGG — real Ogg Vorbis, not a renamed file

This MP3 to OGG converter encodes MP3 files as genuine Ogg Vorbis using libvorbis, the Xiph.Org reference encoder, compiled to WebAssembly and run in your browser. That matters: tools that ask for Ogg files usually mean Vorbis specifically, and a file with another codec inside — even with an .ogg name — gets rejected. Here the file is real Vorbis, with title, artist, album and cover art written as Vorbis comments.

If your target supports it, the Ogg Opus option makes smaller files at similar quality, still with the .ogg extension. Both encoders work from the decoded MP3, so the result can only sound as good as the MP3 — choose a quality that keeps up with it.

How to use the MP3 to OGG Converter

1. Drop the MP3s you want as Ogg files onto the upload area, or click it to browse.
2. Under Convert to, keep Ogg Vorbis for games, engines and maximum compatibility, or pick Ogg Opus for smaller files.
3. Choose the Vorbis quality — 6 (about 192 kbps, selected) suits music from typical MP3s; 3–4 is plenty for sound effects and speech. For Opus you choose a Bitrate instead.
4. Set Sample rate or Channels only if your engine asks for them, for example mono 44.1 kHz sound effects.
5. Press Convert to Ogg Vorbis and download the .ogg files, individually or as a ZIP.

MP3 to OGG Converter features

Vorbis quality levels

Vorbis is variable bitrate: you choose a quality level, and the encoder spends as many bits as each passage needs. Approximate average bitrates for 44.1 kHz stereo music:

Using the OGG files in games and apps

• Minecraft resource packs expect Ogg Vorbis, and sounds that should come from a position in the world must be mono — set Channels to Mono for effects.
• Godot imports Ogg Vorbis as a compressed, loopable stream, the usual choice for music.
• Unity and other engines accept Ogg files and may re-compress them on import, so a high quality setting avoids stacking losses.
• Web pages: Chrome, Edge and Firefox play Ogg Vorbis in an audio element; Safari’s support has historically been limited, so serve an MP3 alternative.
• Quiet or simple audio uses far fewer bits than the averages above — a pure test tone can come out under 50 kbps — so the size estimate before converting is a guide, not a promise.

Vorbis or Opus?

Opus is newer and more efficient — it typically matches Vorbis quality at a noticeably lower bitrate — and it handles speech far better. Vorbis wins on compatibility with older software and game engines, which is why it is the default here. If you need a .opus file rather than Opus in .ogg, use MP3 to Opus; to go back, OGG to MP3.