Convert WAV to MP3 Online

Upload a WAV file and convert it to a smaller MP3. Dramatically reduce file size while preserving audio quality.

How it works

  1. Upload your WAV audio file. Drag your uncompressed WAV file into DomeScribe. Both standard PCM and extended WAV formats are supported, regardless of bit depth or sample rate.
  2. Review audio specifications. DomeScribe displays the WAV file's bit depth, sample rate, channel count, and total duration so you can make informed decisions about compression settings.
  3. Select MP3 encoding quality. Choose a bitrate that suits your needs. For spoken word or podcasts, 128 kbps works well. For music, 256 kbps or 320 kbps preserves detail while dramatically reducing file size.
  4. Compress and download your MP3. Click Convert to encode your WAV as MP3. Expect file sizes roughly ten times smaller than the original, making it easy to share via email, messaging apps, or upload to streaming platforms.

Converter at a glance

Video formats
MP4, WebM, MOV, AVI, MKV
Audio formats
MP3, WAV, FLAC, M4A, OGG, AAC
Privacy
Runs 100% in your browser (WebAssembly) — your file is never uploaded to a server
Speed
No upload or download wait — conversion starts instantly, even for large files
Watermark
None, ever
Free tier
10 conversions per month

Frequently asked questions

How much space will I save converting WAV to MP3?

WAV files are uncompressed, so they are extremely large. A typical 4-minute song at CD quality takes about 40 MB as WAV but only 4 MB as a 128 kbps MP3 from DomeScribe, or about 9 MB at 320 kbps. That is roughly a 5-10x reduction in file size.

Is there any quality loss when converting WAV to MP3?

MP3 is a lossy format, so some audio data is discarded when DomeScribe encodes the file. At 320 kbps the loss is virtually inaudible to most people. For critical listening or archival, consider FLAC instead, which compresses without any quality loss.

Can I convert a WAV recorded from a microphone or voice memo?

Yes, DomeScribe handles WAV files from any source — voice recorders, DAWs, phone apps, or professional studio equipment. The output MP3 is perfect for sharing recordings via email, messaging, or uploading to podcast hosting platforms.

What sample rate and bit depth does DomeScribe support for WAV input?

DomeScribe accepts WAV files at any standard sample rate (8 kHz through 192 kHz) and bit depth (8-bit, 16-bit, 24-bit, or 32-bit float). High-resolution WAV files are downsampled intelligently during MP3 encoding to produce the cleanest output.

Will my WAV file's metadata carry over to the MP3?

DomeScribe transfers available metadata from the WAV header, including title, artist, and comments, into MP3 ID3 tags. Since WAV has limited metadata support compared to MP3, you may want to add additional tags after conversion using a tag editor.

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