MP3 to OGG Converter

Summary

OGG Vorbis is an open, royalty-free audio codec widely used in web games, Linux desktops, and open-source software. This tool transcodes your MP3 to OGG Vorbis directly in the browser using FFmpeg compiled to WebAssembly — your file is never sent to any server. The conversion preserves the original sample rate and channel layout while re-encoding to OGG at a high-quality variable bitrate.

How it works

1. Click the upload area or drag an MP3 file onto it.
2. FFmpeg.wasm loads in the background (one-time download, ~10 MB).
3. Click "Convert to OGG" — FFmpeg runs inside a browser Web Worker.
4. The transcoded OGG file is written to browser memory.
5. A download button appears — click it to save the OGG file locally.
6. Your audio data never leaves your device at any point.

Use cases

• Prepare audio assets for HTML5 web games that require OGG format.
• Convert music for Linux media players and open-source applications.
• Create OGG files for use in game engines such as Godot or Pygame.
• Archive MP3 tracks in an open, patent-free audio format.
• Provide OGG fallback audio alongside MP3 for browser compatibility.
• Convert podcast episodes or voice recordings to OGG for web embedding.
• Reduce file size compared to WAV while keeping reasonable audio quality.
• Produce OGG files for Wikipedia or other open-content platforms.

Frequently Asked Questions