Is it Ogg Vorbis or Ogg Opus?

Opus, which is what current browsers can encode and what modern engines and players support. If a very old tool demands Vorbis specifically, convert on the desktop with Audacity.

Will loops be seamless?

Better than MP3: OGG has no encoder padding, so a looped track does not click at the seam. Trim the source precisely to the loop points first.

Does converting MP3 to OGG lose quality?

It is a lossy-to-lossy step, so a small loss is inevitable. Pick a bitrate at least as high as you would for MP3 to keep it inaudible.

Is anything uploaded?

No. Conversion runs in your browser.

Audio Converters

MP3 to OGG

Unity, Godot, Ren’Py, Minecraft resource packs and many bots take OGG. Convert your MP3 sound effects and music in one batch.

Runs in your browser — files never leave your device.

Drop MP3 files here

or click to browse · paste from clipboard · up to 1000 MB each

Select files

Options

Bitrate

Why convert MP3 to OGG

OGG is the container that game engines and open-source software standardise on: royalty-free, loops without the gap MP3 adds at the start and end, and small at the bitrates games use. If an engine rejects your MP3, this is usually the reason.

The MP3 is decoded in your browser and re-encoded with the Opus codec inside an OGG container — the modern Ogg codec that every current engine, browser and player reads. Bitrates of 64–96 kbps match a 192 kbps MP3 for most content.

How to convert MP3 to OGG

Drop the MP3 files onto the page.
Choose a bitrate — 96 kbps for music, 48 kbps for effects and voice.
Click Convert and download the OGG files.

About the formats

MP3 · MPEG-1 Audio Layer III · .mp3

The audio format everything can play: cars, phones, old players, websites. Lossy, but at 192–320 kbps close to indistinguishable from CD.

All MP3 patents expired in 2017; the format is now free to use.
128 kbps is the classic “good enough” rate; 320 kbps is the maximum.
MP3 cannot store multichannel surround or lossless audio.

OGG · Ogg Vorbis / Opus audio · .ogg

The open-source audio container used by games, Wikipedia, Spotify streams and WhatsApp voice notes (Opus); not supported by Apple apps.

Ogg is a container; the codec inside is usually Vorbis (music) or Opus (voice, low bitrate).
Opus is the codec behind WhatsApp voice messages, Discord and WebRTC calls.
iOS and iTunes do not play OGG natively, which is the usual reason to convert to MP3.

Related conversions

Audio ConverterPopularOn-deviceAny audio format to any other, with bitrate control.WAV to MP3PopularOn-deviceUncompressed WAV to compact MP3 (about 10× smaller).OGG to MP3On-deviceOGG/Opus (voice notes, game audio) to MP3.MP3 to WAVOn-deviceMP3 decoded to WAV for editing and DAWs.MP4 to MP3PopularPull the audio out of a video as an MP3.M4A to MP3PopularOn-deviceVoice memos and iTunes M4A to universal MP3.

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