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Audio Converter

Convert audio to MP3, WAV, AAC, FLAC and more

Click to upload an audio file

About Audio Converter

Audio Converter converts a single audio file between MP3, WAV, AAC, FLAC, OGG, M4A, and Opus using ffmpeg.wasm, running entirely in your browser — your file is never uploaded to a server.

How to use Audio Converter

  1. 1Click the upload area and select an audio file.
  2. 2Choose your target format from the dropdown.
  3. 3Click "Convert Audio" to process the file locally.
  4. 4Preview and download the converted file.

Frequently Asked Questions

Is Audio Converter free to use?

Yes, it's completely free with no signup and no limit on how many files you can convert.

What formats are supported?

MP3, WAV, AAC, FLAC, OGG, M4A, and Opus, both for input (anything ffmpeg can decode) and as output targets.

Can I convert multiple files at once?

No, this tool processes one file at a time — you'd need to repeat the process for each file.

Is my file uploaded anywhere?

No. Conversion happens entirely client-side via ffmpeg.wasm (WebAssembly) — there's no server involved, so nothing is ever uploaded.

Tips & Tricks

  • ✓The first conversion after loading the page takes longer since your browser needs to download the ffmpeg.wasm engine (roughly 25–30MB).
  • ✓FLAC and WAV preserve full quality but produce larger files than MP3, AAC, or Opus.
  • ✓Opus is a strong choice for small file size at good quality if your target player supports it.
  • ✓This tool converts audio files only — it doesn't extract audio from video files.