Convert WAV files to MP3 at up to 320 kbps, then edit the metadata of every file in one place — title, artist, album, BPM, key, ISRC and cover art. Batch convert, batch tag, download as ZIP.
or click to browse — up to 100 MB per file
Choose filesGhost Producer World is the marketplace for exclusive, drop-ready EDM tracks. Upload your production, set your price, and get paid when a DJ or label buys the full rights.
A WAV to MP3 converter takes your uncompressed WAV audio files and encodes them into the MP3 format. WAV stores every sample exactly as recorded — a 5-minute song is typically around 50 MB. MP3 uses perceptual compression to remove what the ear can't hear, bringing that same song down to roughly 5–12 MB depending on the bitrate.
This converter runs entirely inside your browser. Nothing is uploaded, there is no queue and no account. It also reads any metadata already inside your files (ID3 tags in MP3s, RIFF INFO in WAVs) so you can review and fix it before exporting.
| WAV | MP3 | |
|---|---|---|
| Type | Uncompressed (lossless PCM) | Compressed (lossy) |
| Quality | Identical to the source | Very close at 320 kbps; audible loss at 128 kbps |
| File size (5 min, stereo) | ~50 MB at 44.1 kHz / 16-bit | ~12 MB at 320 kbps · ~5 MB at 128 kbps |
| Metadata | Limited (RIFF INFO), poorly supported | ID3 tags: title, artist, album, cover art, BPM, key, ISRC… |
| Best for | Production, mastering, archiving, store uploads | Demos, sharing, streaming, DJ pools, email |
| Browser support | All modern browsers | All browsers and every device made since 2000 |
Every field is written as a standard ID3v2.3 tag, which is what iTunes, Rekordbox, Serato, Traktor, VLC, Windows and Android read.
MP3 is for delivery, not for production. Keep the WAV whenever the audio is going to be processed again: mixing, mastering, remixing, sampling, uploading to a marketplace or a distributor, and archiving your masters. Once audio has been through MP3 compression the removed data cannot be recovered — converting an MP3 back to WAV just makes a bigger file with the same losses.
On Ghost Producer World, buyers receive the original WAV master and stems — that's why the upload flow asks for WAV. Use MP3s for the previews you send to friends, DJs and labels.
SoundCloud recommends uploading WAV or FLAC — it re-encodes everything for streaming anyway, so starting from lossless gives the best result. Distributors (DistroKid, TuneCore, Amuse…) require WAV. DJ pools, promo emails and demos are where 320 kbps MP3 shines: small enough to send, good enough to play.
Yes. MP3 is a lossy format, so some audio data is permanently removed during compression. At 320 kbps the difference is nearly inaudible for most listeners and on most systems, but keep the WAV as your master.
320 kbps for music distribution, demos and sharing. 192 kbps for general use where file size matters more than the last bit of detail.
No. Decoding, encoding and tag editing all happen locally in your browser using the Web Audio API and the open-source lamejs encoder. Your files never leave your device — you can even switch off the internet after the page has loaded.
Yes. Drop an existing MP3, edit its tags and download. The audio frames are copied untouched and only the ID3 tag at the start of the file is rewritten, so there is zero quality loss and the bitrate setting is ignored for those files.
Yes. Drag and drop any number of files or pick several in the file dialog. Two or more files are downloaded together as a single ZIP.
100 MB per file. That covers about 10 minutes of 44.1 kHz / 16-bit stereo WAV, or 5 minutes at 24-bit / 48 kHz. Very long files use a lot of memory to decode, which is why there is a cap.
It uses Essentia.js, the open-source audio analysis engine from the Music Technology Group at Universitat Pompeu Fabra. The first 90 seconds of each file are analyzed; the result is rounded to a whole BPM (as EDM productions use) and written to the BPM and KEY tags. Always double-check — half-time and double-time grooves can fool any detector.
WAV files rarely carry metadata: most DAWs export them without any. Some write a RIFF INFO chunk or an embedded ID3 chunk, which this tool reads. If the fields are empty, just fill them in — they will be written into the MP3.
Images larger than 1000 px on the longest side, or heavier than 1 MB, are downscaled to a 1000 px JPEG before embedding. That keeps each MP3 small while still looking sharp in players and DJ software.
A typical 5-minute WAV converts in 3–8 seconds depending on your device. The page stays responsive, and each file shows its own progress.
The same as the source WAV (44.1 or 48 kHz). WAVs above 48 kHz are resampled to 48 kHz, which is the maximum the MP3 format supports.