Free Online Audio Converter - MP3, WAV, FLAC, OGG, M4A, Opus
AudioKit's online audio converter lets you convert any audio file to MP3, WAV, FLAC, OGG, M4A, AAC, WMA, Opus, or AIFF directly in your browser. No file size limits, no account required, and your files are never uploaded to a server.
Supported Conversions
- MP3 to WAV - Convert compressed MP3 to uncompressed WAV for editing
- WAV to MP3 - Compress large WAV files to portable MP3 format
- FLAC to MP3 - Convert lossless FLAC to universally compatible MP3
- M4A to MP3 - Convert Apple M4A audio to MP3
- MP3 to OGG - Open-source format for web streaming
- Any format to Opus - Best quality at low bitrate for web and mobile
How to Convert Audio Online
- Upload your audio file (MP3, WAV, FLAC, OGG, M4A, AAC, WMA, AIFF)
- Select your target format from the dropdown
- Choose quality (Low / Medium / High) for lossy formats
- Click Convert Now and download your file instantly
Why Use AudioKit Audio Converter?
All conversion happens locally using FFmpeg WebAssembly - the same professional audio codec library used by YouTube and Netflix. Your audio never leaves your device, making it the most private audio converter online. Works on Windows, Mac, Linux, iOS and Android.
Frequently Asked Questions
Is this audio converter free?
Yes, completely free with no registration and no file size limits.
What is the best format for music?
For streaming: MP3 or Opus. For editing: WAV or FLAC (lossless). For Apple devices: M4A.
How long does audio conversion take?
Most files convert in under 10 seconds. Large files may take up to a minute depending on your device.
Is my audio file private?
Yes. The entire conversion runs inside your browser using WebAssembly. No files are uploaded to any server.