Free Online Audio Converter

For streaming and general use, MP3 at 320 kbps or AAC at 256 kbps are excellent choices — universally compatible and small. For archiving or studio use, FLAC gives you lossless quality at roughly half the size of WAV. For Apple devices, AAC (M4A) is the native format and sounds better than MP3 at the same bitrate.

No — FLAC is lossless and MP3 is lossy, so the conversion applies compression. However, choosing 320 kbps MP3 output makes the difference inaudible for most listeners. Start with a lossless source (WAV or FLAC) at 320 kbps for the best MP3 quality.

AAC (Advanced Audio Coding) is the successor to MP3. At the same bitrate, AAC sounds better — particularly noticeable below 192 kbps. AAC is the native format for Apple devices, YouTube, and most streaming services. MP3 has broader compatibility with older devices and software.

Convert FLAC to OGG Vorbis at high quality — it's lossless quality in a much smaller file using a psychoacoustic model that removes inaudible frequencies. Alternatively, WAV to FLAC reduces file size by 40–60% while remaining completely lossless.

No. All audio processing runs locally in your browser using the Web Audio API and FFmpeg.wasm. Your files never leave your device — no server receives them.

Yes. Use the video tab on the main converter and select MP3 as the output — it extracts audio from MP4, MOV, MKV, AVI, WebM, and most other video formats.