Skip to content
Work data is processed in your browser, not stored on our servers.
tools
Audio Converter for MP3, WAV, M4A, Opus and FLAC

Audio Converter for MP3, WAV, M4A, Opus and FLAC

Convert audio locally to WAV, MP3, M4A, WebM Opus, or FLAC when supported, then preview and download the result.

Focus mode
Convert audio format
Convert audio to a format supported by your current browser.

Key features

  • Converts the primary track from audio this browser can read.
  • Builds the output list from encoders that are actually available now.
  • Adjusts sample rate, mono or stereo channels, and bitrate.
  • Previews the result and passes it to the audio trimmer or Whisper subtitles.

How to use

  1. Choose an audio file to convert.
  2. Select an available output and audio settings.
  3. Convert, preview, and download the result.

Examples

  • Create a more compatible playback file

    Re-encode audio to MP3, M4A, WebM, or another format available in this browser.

  • Prepare audio for transcription

    Simplify channels and sample rate, then send the result to Whisper subtitles.

  • Create a lossless copy

    Convert to WAV or FLAC when the browser exposes those encoders.

Privacy

Audio decoding and encoding happen in the current browser; source and output files are not uploaded.

Requirements

Input is limited to 500 MB and estimated output to less than 256 MiB. Available formats vary with operating-system and browser WebCodecs support, and source tags are not copied.

Common questions

Why are MP3 or FLAC missing in some browsers?
The list reflects encoders reported by the current browser, so it varies by browser and device.
Does conversion improve the original quality?
No. Re-encoding cannot restore missing detail, and lossy output can reduce quality.
Are album tags and cover art preserved?
No. Descriptive source metadata that may contain personal information is not copied.

Related tools