Convert OGG to MP3 in your browser

For Windows, car stereos and editors that will not open an OGG. Both Vorbis and Opus files work here, and both are better codecs than what they are becoming.

OGG

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OGG to MP3 options

Bitrate (kbps) 192

Your OGG is already lossy, so this is a second pass and the damage compounds. 192 is the default for that reason: Opus at 96 kbps sounds better than MP3 at 128, so matching the source number would lose more than it looks like it should.

Downmix to mono Off

One channel instead of two, so roughly half the size again. A WhatsApp or Telegram voice note is already mono, so this costs nothing on one.

Strip tags and cover art Off

Off by default. OGG carries Vorbis comments with the title and artist, and they are rewritten as ID3 tags in the MP3 unless you turn this on.

Convert to a target size Off

MP3 size is bitrate times duration, so we work the bitrate out from the length of your recording. If your figure needs less than 32 kbps we say so instead of pretending.

How to convert OGG to MP3

01

Drop the OGG files

Game audio, Audacity exports, voice notes, Wikimedia downloads. Vorbis and Opus are both read here, and you do not need to know which yours is.

02

Pick a bitrate

192 keeps the second lossy pass honest. For a voice note, turn on mono and drop to 64: it will sound the same and be a fraction of the size.

03

Save the MP3

A .mp3 that Windows, car stereos, DAWs, podcast hosts and every upload form will accept without a codec argument.

Vorbis or Opus, and why does it matter?

.ogg is a container, not a codec, which is why two files with the same extension can be entirely different things. Older ones hold Vorbis: Audacity's default export for years, and the format a great many games ship their music and sound effects in. Newer ones hold Opus, which is what WhatsApp, Telegram, Discord and Signal use for voice messages. This page reads both and you do not need to work out which you have.

Both are better than MP3, and Opus is dramatically better at low bitrates. Opus at 64 kbps is genuinely usable for speech in a way MP3 at 64 is not; at 96 it is competitive with MP3 at 160 or more. So converting to MP3 is a step down in codec quality, made worthwhile only by the fact that MP3 plays absolutely everywhere and OGG does not.

Because the source is already lossy, this is a second encoding pass over audio that has had detail removed once. The two rounds compound, and the encoder cannot tell what the first one took. That is why the default here is 192 rather than whatever number your source happens to report: matching an Opus bitrate in MP3 would produce a noticeably worse file than the number suggests.

OGG to MP3 FAQ

Does this handle Opus voice notes?

Yes. WhatsApp, Telegram, Signal and Discord voice messages are Opus in an Ogg container, and they decode here the same as a Vorbis file. If yours has a .opus extension rather than .ogg, rename it and it will convert.

Why is my MP3 bigger than the OGG?

Because MP3 needs more bits to sound the same. Opus especially is far more efficient, so a 96 kbps voice note becoming a 192 kbps MP3 doubles in size. That is the price of a file that plays everywhere, and you can lower the bitrate if size matters more.

Will it sound worse?

A little, unavoidably: two lossy encodes in a row lose more than one. At 192 from a normal music OGG the difference is very hard to hear. For speech at 64 kbps mono, it is inaudible on a phone speaker.

Can I convert game audio in bulk?

Yes. Drop the folder and every file queues with the same settings. Nothing is uploaded, so several hundred sound effects is no different for us than one.

Do the title and artist survive?

Yes, unless you turn on "Strip tags and cover art", which is off by default here. Vorbis comments are rewritten as ID3 tags so your music library still recognises the file.

Should I be converting to MP3 at all?

Only if something will not play the OGG. If everything in your chain handles it, keeping the original is strictly better: it is already smaller and already sounds closer to the source. Convert for compatibility, not for quality.

Are my OGG files uploaded to convert them?

No. The OGG is decoded and the MP3 is written by your own browser, in this tab. There is no upload endpoint in the site for a file to go to, which you can check in your network tools: convert something and watch that no request carries it. Disconnect from the network after the page loads and it still works.