Turn an MP3 into a genuine OGG file. Solmi decodes the MP3 and encodes it with libvorbis, the reference Vorbis encoder, running in your browser, so you get a real Ogg Vorbis file: the format game engines, Minecraft resource packs, and many open-source apps expect. No upload, no signup, no watermark.
1. Choose the MP3 from your computer or phone. 2. Pick the OGG quality: about 192 kbps is the default, about 128 kbps is enough for sound effects and voice. 3. Press Convert. The MP3 is decoded and encoded as Ogg Vorbis in your browser, so nothing uploads. 4. Play the OGG on the page, then download it.
Vorbis is variable bitrate: quiet or simple passages take fewer bits, dense ones more. The sizes are typical for a stereo song.
| Setting | Vorbis quality | Size per minute | Use it for |
|---|---|---|---|
| ~128 kbps | 4 | About 1 MB | Game sound effects, voice, ambience |
| ~192 kbps (default) | 6 | About 1.4 MB | Music and game soundtracks |
| ~256 kbps | 8 | About 1.9 MB | Music on good speakers |
| ~320 kbps | 9 | About 2.4 MB | The closest to the MP3 source |
Drop the MP3 onto the converter, pick a quality, and press Convert. Solmi decodes the MP3 in your browser, encodes it as Ogg Vorbis with libvorbis compiled to WebAssembly, and gives you the .ogg to play or download. Nothing is uploaded.
Ogg Vorbis. It is the codec people usually mean by an .ogg file, and the one Minecraft, Godot, Unity, and RPG Maker read. The converter does not write Opus, so if an app asks specifically for an .opus file, this is not it.
Each setting is a Vorbis quality level, shown as the average bitrate it lands near: about 128 kbps (quality 4), about 192 kbps (quality 6, the default), about 256 kbps (quality 8), or about 320 kbps (quality 9). Vorbis varies the bitrate with the music, so the final size is an estimate. For game sound effects 128 is plenty; for music, pick 192 or higher.
A little. MP3 is already lossy, and Vorbis compresses the decoded audio again. At about 192 kbps or above the second generation is very hard to hear. Converting cannot bring back what the MP3 discarded, so start from the best MP3 you have.
Chrome, Firefox, Edge, Android, VLC, foobar2000, Audacity, and most game engines play Ogg Vorbis. Support on Apple devices is patchier, so keep the MP3 for an iPhone or an Apple Music library.
No. The converter runs entirely in your browser: your file is decoded and re-encoded on your own device, and nothing is sent to a server. That is also why it is fast — there is no upload wait and no download wait, just the conversion itself.
Yes, completely free with no signup, no file-size paywall, and no watermark. Once your audio is converted, you can turn the track into a music video with Solmi's AI music video generator — also free to start.