Free WAV (.wav) to MP3 (.mp3) converter running entirely in your browser — with bitrate, sample rate and channel control. No upload, no signup.
MP3 · WAV · M4A · AAC · OGG · Opus · FLAC · WebM · AIFF
WAV stores uncompressed PCM samples: exactly what came off the converter, no encoder in the way. Files are large — roughly 10 MB per minute of CD-quality stereo — but editing, mastering and archiving all want that fidelity.
Best for: Editing, mastering and any workflow that must not re-compress.
MP3 is the format every device on earth can play. Its patents expired in 2017, and while newer codecs compress better at the same bitrate, nothing matches its universal support in cars, DJ gear, hardware players and elderly software.
Best for: Maximum compatibility — cars, old players, anything with an audio jack.
Yes — unlimited, watermark-free and without an account. Conversion runs on your own machine, so there is no per-file cost to pass on.
No. Your browser decodes and re-encodes the audio locally; nothing is transmitted, which matters for voice notes, interviews and unreleased tracks.
MP3 encoding is lossy but transparent for most listeners at 192 kbps and above; the bitrate slider gives you full control.
Yes. Drop a whole batch — each file is processed in turn and the results can be downloaded individually or together as a ZIP.
WAV tags, cue points and other container metadata are not carried through when the file is decoded to PCM samples. The MP3 encoder writes new audio frames without ID3 tags or cover art, so add that metadata afterwards if you need it.