Convert M4A files into the free OGG Vorbis format, which is royalty-free and compresses well. Conversion runs in your browser, so your files are never uploaded.
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. M4A and OGG are both lossy, so re-encoding can even shed a little more quality. OGG cannot repair missing detail.
OGG Vorbis is free and royalty-free and is popular in games, web applications and open-source projects.
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. For very large files there is an optional server mode.