Free OGG (.ogg, .oga) to MP3 (.mp3) converter running entirely in your browser — with bitrate, sample rate and channel control. No upload, no signup.
MP3 · WAV · M4A · AAC · OGG · Opus · FLAC · WebM · AIFF
OGG Vorbis is a patent-free codec that outperformed MP3 at the same bitrate and became standard in games, Wikipedia and open-source software. Hardware support has always been the weak point — hence the constant need to convert.
Best for: Games and open-source projects; convert for consumer hardware.
MP3 is the format every device on earth can play. Its patents expired in 2017, and while newer codecs compress better at the same bitrate, nothing matches its universal support in cars, DJ gear, hardware players and elderly software.
Best for: Maximum compatibility — cars, old players, anything with an audio jack.
Yes — unlimited, watermark-free and without an account. Conversion runs on your own machine, so there is no per-file cost to pass on.
No. Your browser decodes and re-encodes the audio locally; nothing is transmitted, which matters for voice notes, interviews and unreleased tracks.
Both formats are lossy, so this is a second encoding pass — some quality is lost by definition. Use the highest bitrate you can afford (256–320 kbps) to keep the loss inaudible, or convert to WAV instead if the file will be edited.
Yes. Drop a whole batch — each file is processed in turn and the results can be downloaded individually or together as a ZIP.
OGG tags, comments and cover artwork are separate from the decoded samples and are not carried into the conversion. The MP3 encoder writes new audio frames without ID3 tags or cover art, so add that metadata afterwards if you need it.