Convert Audio to MP3 Free - All Formats Supported
Convert any audio file (M4A, WAV, OGG, FLAC, WMA, AAC) to MP3 in seconds. 100% private in your browser, no file uploads.
All processing happens in your browser
Select a file
Or drag and drop here
Supported formats: MP4, WEBM, MOV, M4A, OGG, WAV
Limits: 100 MB, 30 minutes
How to Convert Any Audio to MP3
Select your audio file
Upload any format: M4A, WAV, OGG, FLAC, WMA, AAC, OPUS
Automatic conversion to MP3
We process audio in your browser, no uploads
Download your MP3
Universal MP3 file compatible with all devices
Frequently Asked Questions - Convert Audio to MP3
What audio formats can I convert to MP3?
We support all common formats: M4A (WhatsApp, iPhone), WAV (uncompressed), OGG/OPUS (Discord, Telegram), FLAC (high quality), WMA (Windows), AAC, and more. If it's audio, we can probably convert it.
Why convert other formats to MP3?
MP3 is the universal format that works on 100% of devices, players, editors, and platforms. Plus, it takes up less space than WAV or FLAC while maintaining excellent quality at 128 kbps.
Are my audio files private?
Completely. Your audio never leaves your browser. We process everything locally with WebAssembly (FFmpeg). Other converters upload your files to servers. We can't see or store your audio.
What quality is the resulting MP3?
We convert to 128 kbps (quality standard), perfect for music, podcasts, audiobooks, and most uses. If you need maximum quality, use our lossless WAV format.
How much does it reduce file size?
Depends on original format: WAV → MP3 (~90% reduction), FLAC → MP3 (~70% reduction), M4A → MP3 (similar size, better compatibility), OGG → MP3 (similar size).
Does it work on mobile devices?
Yes, PrivAudio works on iPhone, Android and tablets. Just need a modern browser (Safari, Chrome). No apps required.