Are my MP3 files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and convert something. You will see the page load, plus the analytics and advertising the site is paid for with — and nothing carrying your file.

Is converting MP3 to OGG free?

Yes. There is no account, no watermark and no limit on how many files you convert — it runs on your own machine, so it costs us nothing to let you. Files up to 100 MB are handled in the browser.

Does converting MP3 to OGG lose quality?

OGG is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. Both formats are compressed, so this is a second round of compression on audio that has already lost detail. Pick the highest quality band if the result is going to be edited or converted again.

Do I need to install anything to open OGG files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the OGG afterwards needs whatever software normally handles Ogg Vorbis on your device.

MP3toOGG

Convert MP3 to OGG

Up to 100 files at once. Mixed formats are fine.

You can convert MP3 to OGG free and without an account: drop the file above and the OGG is ready to download in a second or two. The conversion happens inside your own browser, so the file is never uploaded — it works on Windows, Mac, Linux, iPhone and Android, and keeps working with the network switched off.

What MP3 and OGG are for

The audio format everything plays. Lossy, small, thirty years old and still unbeaten on compatibility.

The royalty-free audio format. Common in games and on Linux, rare on phones.

How to convert MP3 to OGG

Drop your MP3 file onto this page, or click to pick one.
Choose OGG as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished OGG file.

MP3 vs OGG: what changes

MP3 compared with OGG
	MP3	OGG
Full name	MPEG Audio Layer III	Ogg Vorbis
File extension	.mp3	.ogg, .oga
Media type	audio/mpeg	audio/ogg
Compression	Lossy — file size is bought with quality	Lossy — file size is bought with quality

Quality: Some quality is given up for a smaller file. At the default setting the difference is hard to see.
Where it runs: This conversion runs inside your browser. Your file is never uploaded, and it works with the network disconnected.
What can be lost: Both formats are compressed, so this is a second round of compression on audio that has already lost detail. Pick the highest quality band if the result is going to be edited or converted again.

MP3 to OGG: common questions

Are my MP3 files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and convert something. You will see the page load, plus the analytics and advertising the site is paid for with — and nothing carrying your file.
Is converting MP3 to OGG free?: Yes. There is no account, no watermark and no limit on how many files you convert — it runs on your own machine, so it costs us nothing to let you. Files up to 100 MB are handled in the browser.
Does converting MP3 to OGG lose quality?: OGG is a compressed format, so some data is discarded. At the default setting the difference is not visible; you can raise the quality setting if you need to be certain. Both formats are compressed, so this is a second round of compression on audio that has already lost detail. Pick the highest quality band if the result is going to be edited or converted again.
Do I need to install anything to open OGG files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the OGG afterwards needs whatever software normally handles Ogg Vorbis on your device.