UTILITY

M4A to WebM audio

Convert decoded .M4A audio to Opus in a WebM container using browser recording.

Tool Runs in browser
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Instructions

  1. 1

    Select a local file or enter your input.

  2. 2

    Choose the available options and run the tool.

  3. 3

    Review and download the output.

About this tool

Convert decoded .M4A audio to Opus in a WebM container using browser recording.

This uses real-time encoding and requires MediaRecorder with WebM/Opus support; maximum 120 seconds of audio.

Your files stay yours.
Current file-processing tools run locally; direct-link tools request the media from its source website. No account is required.