Audio Format Converter

Convert between MP3, WAV, OGG, M4A and FLAC.

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Files and text are processed locally in your browser. Tools that must reach the network say so explicitly.

About the Audio Format Converter

Convert audio between formats. The Toolcenter Audio Format Converter decodes your file and re-encodes it to MP3 (with a bitrate you set), lossless WAV, or Opus in OGG/WebM using the browser’s encoder. Everything is processed locally, so your audio is never uploaded.

How to use it

1Drop an audio file.
2Choose the target format.
3Set the MP3 bitrate if converting to MP3.
4Convert, preview and download.

Key features

MP3, WAV, OGG and WebM output
MP3 bitrate 96–320 kbps
Full in-browser decode and encode
Source vs output size comparison
No upload, no account

Frequently asked questions

Which source formats are supported?+

Anything your browser can decode, typically MP3, WAV, M4A, OGG and FLAC.

Why convert to WAV?+

WAV is uncompressed and lossless — useful for editing or for systems that require PCM audio. It is much larger than MP3.

Are OGG and WebM the same codec?+

Both use Opus here, just in different containers. Pick whichever your target app prefers.

Is my file uploaded?+

No. Conversion is local to the browser.

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