Convert MP3 to OGG, Free
Files convert instantly in your browser. 100% private, any file size, no account needed.
Drop your MP3 file here
or click to browse. Any file size.
Conversion runs entirely in your browser. Your file never leaves your device.
How to convert MP3 to OGG
OGG Vorbis is a free, open-source audio format that generally offers better sound quality than MP3 at the same file size. It is widely supported in Linux, Android, and web browsers (via the HTML5 audio element), and it is commonly used in web applications and games to avoid MP3 licensing concerns.
BoltConverter converts MP3 to OGG Vorbis entirely in your browser using WebAssembly. No upload is required. The audio is decoded from MP3 and re-encoded as OGG Vorbis, and the file is ready for download without leaving your device.
Upload your MP3 file
Click the upload area or drag your .mp3 file onto the page. The conversion runs locally in your browser.
Conversion runs in the browser
WebAssembly decodes the MP3 and encodes it as OGG Vorbis. No server upload needed.
Download the OGG file
Save the .ogg file for use in web projects, games, or Linux audio applications.
Frequently asked questions
Is OGG better quality than MP3?
At the same bitrate, OGG Vorbis generally produces better audio quality than MP3, especially at lower bitrates like 96 to 128 kbps. This is because Vorbis uses a more efficient compression algorithm.
Does converting MP3 to OGG improve quality?
No. Re-encoding from one lossy format to another never recovers lost audio data. The output quality is limited by the quality of the original MP3.
Will all browsers play OGG files?
Most modern browsers (Chrome, Firefox, Edge, Opera) support OGG Vorbis natively. Safari has historically not supported OGG, though this may change with updates.
Are my audio files uploaded anywhere?
No. The conversion runs entirely in your browser using WebAssembly. Your audio files stay on your device.
What is the difference between OGG and OGG Vorbis?
OGG is the container format; Vorbis is the audio codec inside it. When people say OGG for music, they almost always mean OGG Vorbis. OGG can also contain Opus or FLAC audio.