Convert MP3 files into the free OGG Vorbis format, which is royalty-free and compresses well. Conversion runs in your browser, so your files are not uploaded by default.
In “Local” mode your file never leaves your device. No uploads, no server – ideal for sensitive recordings.
Pick “Local” for full privacy or “Server” for very large files and every format.
No sign-up, no queue, no watermark. Choose a file, convert, download.
No. Converting from one lossy format to another can even shed a little more quality. OGG cannot repair detail that's already missing.
OGG Vorbis is free and widely used in games, web projects and open-source software, where royalty-free formats are preferred.
Android devices, many browsers and players support OGG. On Apple hardware you may occasionally need an extra app.
No, conversion runs locally in your browser by default. An optional server mode is available for very large files.