Audio Converter
Convert audio to MP3, WAV, M4A, OGG or FLAC.
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About Audio Converter
Audio Converter changes an audio file from one format to another — to MP3, WAV, M4A, OGG or FLAC — right in your browser. Upload a file, choose the output format and (for MP3) the bitrate, and download the converted audio in seconds.
Everything runs on your own device using an in-browser build of ffmpeg, so your file is never uploaded to a server. It's free, with no sign-up and no watermark.
Frequently asked questions
- Is the audio converter free?
- Yes — completely free with no sign-up, no watermark, and no limits.
- Is my file uploaded to a server?
- No. The conversion happens entirely in your browser, so your audio never leaves your device.
- Which formats can I convert between?
- It reads common formats like MP3, WAV, M4A, AAC, OGG, FLAC and Opus, and can output MP3, WAV, M4A, OGG or FLAC. You can even drop in a video file to pull out and convert its audio.
- How do I convert WAV or M4A to MP3?
- Choose your file, set the output to MP3, pick a bitrate, and click Convert — the same works for M4A, AAC, OGG, FLAC or any supported source to MP3.
- What MP3 bitrate should I pick?
- 128 kbps is fine for speech and casual listening, 192 kbps is a great all-round choice, and 320 kbps is the highest quality (and largest file).
- Will converting improve the quality?
- No. Converting to WAV or FLAC is lossless from the source, but it can't recover detail that a compressed file (like an MP3) already discarded. Converting one lossy format to another re-compresses and loses a little more.
- Does it work on mobile?
- Yes — it works in any modern browser on phones, tablets and computers.