Audio Converter
Convert audio between MP3, WAV, OGG, and M4A — free, private, and entirely in your browser.
All processing happens in your browser — your audio never leaves your device. MP3 encoding uses a fast in-browser encoder. WAV, OGG, and M4A use the ~25 MB ffmpeg engine (downloaded once).
MP3 at 192 kbps — widely compatible, smaller file size.
Drop an audio file here or click to browse
MP3, WAV, OGG, M4A, MP4, FLAC · converted on your device, never uploaded
Files are processed locally and never leave your device ✦
How to convert audio
- Select the output format from the dropdown.
- Drop your audio (or video) file into the box above.
- Click Convert and wait for processing to complete.
- Preview the result in the audio player and download.
Frequently asked questions
- Is my audio uploaded to a server?
- No. All conversion happens in your browser. MP3 uses an in-browser encoder; WAV, OGG, and M4A use the WebAssembly ffmpeg engine — none of it touches a server.
- Why does the first WAV/OGG/M4A conversion take a moment?
- The first time, your browser downloads the ~25 MB ffmpeg engine and caches it. MP3 conversion uses a lighter in-browser library and starts immediately.
- What is the MP3 bitrate?
- MP3 output is encoded at 192 kbps, which balances file size and quality for most uses.
- Can I convert video files too?
- Yes — the tool accepts video files and extracts the audio track for conversion.