Free Audio Converter – Convert MP3, WAV, AAC, OGG & FLAC Online
Convert audio between MP3, WAV, AAC, OGG and FLAC right in your browser — no uploads, no installs. Choose your bitrate and get a file that works in every player, phone and editor.
Preparing your tool…
Loading the processing engine in your browser.
How to Free Audio Converter – Convert MP3, WAV, AAC, OGG & FLAC Online
Add your audio files
Choose MP3, WAV, AAC, OGG, FLAC, M4A files from your device.
Pick the target format
Open MP3 in any device, WAV for editing, FLAC for lossless archives, AAC for Apple.
Set the bitrate
Aim for 192 kbps for everyday, 320 kbps for critical listening, or lossless for WAV/FLAC.
Convert and download
Your converted file is decoded and re-encoded locally, then saved to disk.
Why Choose Our Audio Converter?
Five formats in both directions
MP3, WAV, AAC, OGG and FLAC — convert any supported input to any supported output.
You choose the bitrate
Control exactly how much quality vs size you want (128/192/320 kbps, or 44.1 kHz lossless).
Private by design
Every conversion runs locally — interviews, demos and personal tracks never upload.
Metadata preserved
Title, artist and album tags are carried through into the converted file.
Batch conversion
Convert a whole playlist folder and grab the results together.
What is Audio Converter?
An audio converter takes a sound file in one format and gives it back in another. The interesting question is never "which button do I press" but "what am I giving up on the way" — because formats sit on very different points of a quality-versus-size spectrum.
The four personalities of digital audio
WAV is the raw ingredient: uncompressed PCM samples, stereo at CD quality runs 1411 kbps — about 10 MB per minute. It is perfect for editing but absurd for sharing. FLAC is WAV's smarter sibling: it losslessly packs those same samples down to roughly half, with zero audio difference. MP3 is the compatible workhorse — lossy, but with 30 years of polish behind it; at 320 kbps its artifacts are basically inaudible to everyone. AAC beats MP3 at the same bitrate and is what Apple devices and YouTube use. OGG Vorbis is the open-source champion: technically very good, but supported by fewer old devices. Generally, MP3 is for compatibility, AAC for Apple ecosystems, and FLAC/WAV for keeping masters pristine.
What actually happens during conversion
Converting lossless to lossy (WAV/FLAC → MP3) is a one-way tax: quality depends on your bitrate. Converting lossy to lossy (e.g., MP3 → AAC) re-damages already-damaged audio — every generation adds artifacts. Converting lossy to lossless (MP3 → FLAC) makes the file bigger but adds nothing back; it simply locks in whatever quality the MP3 already has. The only clean conversions are the ones that start from lossless.
The pragmatic mantra: archive lossless, ship MP3 or AAC at 192–320 kbps, and keep size expectations sane. A 320 kbps MP3 is roughly 2.4 MB per minute; your player, the web and the family group chat all handle it fine.