Convert OGG to MP3

How to Convert to MP3

1. 1

   Add your OGG files

   .ogg, .oga, .ogx, .opus and .spx, up to 200 MB each, twenty at a time.

2. 2

   Choose a bitrate

   192 kbps for music. Voice messages arrive at a low rate already and are fine at 64 to 96.

3. 3

   Click Convert and download

   Tags come across where the source had them.

OGG is a container with several different codecs inside

The extension says almost nothing about the audio. An .ogg file usually holds Vorbis, the free codec that was the main alternative to MP3 for years; the same container also carries Opus, which replaced it for voice and streaming, and Speex, which preceded both for speech. All three arrive here as OggS and are decoded correctly, since the page reads what is in the stream rather than guessing from the name. That is why a voice message saved as .ogg from a messenger converts here even though it is really Opus.

Voice messages from messengers

WhatsApp, Telegram and Signal all record voice notes as Opus in an Ogg container, typically mono at somewhere between 16 and 32 kbps. Those files are tiny and already heavily compressed for speech. Converting them at 192 kbps produces a file six times larger that sounds exactly the same, because the extra bits have nothing to encode. 64 kbps is generous for this material and 96 kbps is more than enough for any voice note. If the recording is a single speaker, it is already mono and there is nothing to gain from forcing stereo.

Going from one lossy format to another

Vorbis and Opus have both already discarded what their encoders judged inaudible, and MP3 will now discard a slightly different set. The two decisions do not line up, so a little more is lost. This is unavoidable when converting between lossy formats and is not a fault of any particular encoder. Keeping the bitrate at or above the source's is enough to make the second loss inconsequential. Going far above it accomplishes nothing except a bigger file: an Opus voice note at 24 kbps contains no detail that 320 kbps could preserve.

Why convert at all

Vorbis and Opus are technically better than MP3 at the same bitrate; that is not in dispute. The reason to convert is compatibility, and it is a real one: car stereos, older phones, hardware players, DAWs, video editors and plenty of desktop software still read MP3 and nothing else. Tags are carried over where the source had them, written as ID3v2.3, so a converted track keeps its artist and title in players that would not have read the Vorbis comments at all.

Frequently asked questions