Convert WAV to MP3 Free
Convert WAV to MP3 without paying a cent. No trial period. No account required. Just open the page and convert.
Drop your WAV file here or click to browse
WAV (.wav) · Max 20 MB
Most free converters add watermarks or throttle quality. AudioUtils does neither. You get the same output quality whether free or paid.
Free users get 5 conversions per month with a 10-second preview output. The conversion engine is identical to Pro — same speed, same quality, same privacy. Upgrade for full-length output.
Your files stay on your machine. Nothing is uploaded. WAV is lossless. Converting to MP3 reduces file size at the cost of some audio data. Use a high bitrate to minimize loss.
Frequently Asked Questions
What bitrate should I pick?
320 kbps for a mastered music track you want to archive or distribute — near-transparent, about 2.4 MB per minute. 256 kbps is the sweet spot for most music (excellent quality, smaller files). 192 kbps is ideal for podcast music beds and general streaming. 128 kbps is right for spoken word, voice memos, and audiobooks — keeps files tiny without obvious artifacts on speech. Below 128 kbps, music starts to sound watery; avoid unless bandwidth is a hard constraint.
How much smaller will my MP3 be compared to WAV?
Roughly 10× at 128 kbps, 7× at 192 kbps, 5× at 256 kbps, and ~4× at 320 kbps. Example: a 50 MB WAV becomes ~5 MB (128 kbps), ~7 MB (192 kbps), or ~12 MB (320 kbps). Spoken-word content compresses even more efficiently than music at the same bitrate.
Will I lose audio quality?
MP3 is lossy — some audio data is discarded. At 320 kbps the loss is imperceptible to most listeners on most gear, which is why streaming services standardize around that range. Caveats: complex high-frequency content (hi-hats, applause, dense orchestral passages) shows artifacts first; lower bitrates compound losses on every subsequent re-encode. If the WAV is a final master, encode to MP3 once, at the highest bitrate you can afford storage-wise.
Does the MP3 keep metadata like artist, album, and artwork?
Basic ID3 tags (title, artist, album, year) are written when present in the WAV (some WAVs carry BWF/INFO metadata). Embedded album artwork isn't transferred — WAV typically doesn't carry it. After conversion, use a tag editor (MusicBrainz Picard, Mp3tag, Kid3) to fill in tags and cover art.
Is this the same quality as exporting MP3 from my DAW?
Essentially yes — both use LAME under the hood. One difference: your DAW might apply dither when down-converting bit depth; a direct WAV→MP3 conversion doesn't. For 24-bit or 32-bit float WAVs, dithering to 16 bit before MP3 encoding gives marginally cleaner quiet tails. For most use cases the difference is inaudible.
Can I upload this MP3 to Spotify, Apple Music, or SoundCloud?
You can upload MP3 to SoundCloud directly. For Spotify and Apple Music, distributors like DistroKid, TuneCore, and CD Baby require lossless WAV or FLAC masters — upload the original WAV there, not the MP3. MP3 is for previews, demos, and direct listener-facing distribution.
Are my files uploaded to a server?
No. The entire conversion runs in your browser using FFmpeg compiled to WebAssembly. Your WAV never leaves your device; we don't see it, store it, or log it.
About WAV
Uncompressed audio format. Perfect quality with no data loss. Standard for music production and professional audio work.
About MP3
The most widely used audio format. Great compatibility, small file size. Ideal for music, podcasts, and general use.