Convert audio
Convert one audio file or switch to Batch to convert several files to MP3 and download together.
Features
- Read MP3, WAV, FLAC, M4A, AAC, Ogg and Opus inputs.
- Choose from six output formats.
- Set the bitrate for lossy output codecs.
How to use this tool
- Choose Single file or Batch, then select files of the supported type.
- Choose the output format and bitrate.
- Process and download the converted audio.
Good to know
This tool is free without sign-up, with unlimited processing and exports within the displayed input limits.
- Input is limited to 100 MiB on Free or 200 MiB on Pro. WAV and FLAC ignore the bitrate setting; converting a lossy source to lossless does not restore lost detail.
- Choose Single file or Batch on this page. Both modes keep their own files and settings. Your tool access and export limits apply to both. Batch mode processes files sequentially, reports individual failures and keeps completed outputs when cancelled. Size targets are best effort. Audio batch output is MP3.
Privacy and local processing
This tool processes your input in your browser. Source files and text are not uploaded to a FormatOwl processing server. Advanced-tool access and trial balances are checked online using tool IDs, file types, sizes and page counts. Free tools do not require account authorization. Save the results you need before leaving or refreshing the page.
Processing engines, preview resources or fonts may be downloaded from this site when needed. These downloads do not upload your source content.
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