MP3 to OGG Converter

Convert MP3 to OGG privately in your browser

Need a OGG file but only have MP3? This converter turns MP3 audio into OGG directly on your device. Choose one or more files, adjust the options and download the result. Nothing is uploaded to a server, so personal recordings, client material and unreleased music stay with you.

The page runs ffmpeg.wasm, a WebAssembly build of the well-known ffmpeg media engine. Each file is written to a temporary in-memory file system, converted and returned to you as a normal download. You can even preview the converted audio before saving it, and batch several files in one go.

Settings and quality for OGG

OGG here uses the Vorbis codec. Quality runs from 3 to 9: 5 is a balanced default around 160 kbps, while higher values give larger files with fewer artifacts. OGG is popular for web projects, games and open-source players.

Keep in mind that conversion cannot restore detail a lossy MP3 or other compressed source already lost. Converting between two lossy formats re-encodes the sound a second time, so start from the best original you have whenever possible.

Tips for best results

The first conversion downloads the ffmpeg engine, which can take a moment on a slow connection; it is cached afterwards. Long files use browser memory, so close heavy tabs for very large recordings. Always play the preview and keep your original MP3 file until you are happy with the result.

Because processing happens locally, there is no file size limit imposed by a server, only the memory of your device. Tags such as title and artist are copied over when the target format supports them. If a result sounds wrong, try a higher bitrate or quality setting and convert again from the original file instead of re-converting a copy that was already converted once before.