YOUR FILES STAY ON YOUR DEVICE

Convert WAV to MP3

Convert WAV to MP3 locally in your browser. No upload required. Choose output settings and download individual files or a batch ZIP.

AUDIO CONVERTER Your files stay on your device.

Input: WAV
Up to 32 MB per file · 10 minutes
View supported formats

Audio settings

Recommended settings

MP3 · 192 kbps · Original

Output format

Advanced settings

Encoding modeBitrateSample rateChannels

This output uses lossy compression. Converting between lossy formats may reduce audio quality.

Conversion removes tags and artwork. Mono/stereo only. View supported formats

Processing happens locally in your browser. Your files are never uploaded.

Audio codec licenses & notices. Originals untouched. Verify local processing. Advertising makes separate network requests.

Three steps to your MP3

Choose one or more WAV files.
Adjust the output settings, then convert.
Download individual files or the batch as a ZIP.

Need a shorter clip? Trim audio with a waveform.

Audio quality

This output uses lossy compression. Converting between lossy formats may reduce audio quality. Keep your original recording.

Format compatibility and settings

Keep your original WAV recording before creating a delivery copy. MP3 output uses the LAME MPEG Layer III encoder. Choose CBR 128, 192 (default), 256 or 320 kbps, or VBR Standard, High or Best (LAME V4, V2, V0). Auto keeps 48 kHz sources at 48 kHz and uses 44.1 kHz for other rates. Use Mono for a downmix or Stereo for two channels. MP3 is lossy; retain the source recording.

Local processing and practical limits

The audio engine loads when needed and processes one file at a time in a worker. No upload server is involved. Cancel stops the worker. Download and clear results to release memory. Tags and artwork are omitted.

Verify local processing. Read the audio software notices.

View audio tools →

GOOD TO KNOW

Audio conversion questions.

How do I convert WAV to MP3?

Choose files, adjust the output settings and press Convert. Download each result or use Download All for a ZIP. All conversion happens on your device.

Does conversion affect audio quality?

This output uses lossy compression. Converting between lossy formats may reduce audio quality. Keep your original recording.

When should I choose MP3?

Are files or metadata uploaded?

No. File names, audio bytes, duration, metadata and decoded samples stay on your device. Conversion removes tags and artwork. Engine downloads and separate advertising requests may appear in your Network panel.

Which files and browsers work?

Use a browser with WebAssembly and Web Workers. This version supports mono/stereo PCM WAV (8, 16 or 24-bit), native FLAC (8, 16 or 24-bit), standard PCM AIFF (16 or 24-bit, not AIFC), MPEG Layer III MP3 input (CBR/VBR), single-stream Ogg Vorbis and Ogg Opus. MP3 output supports CBR/VBR at 44.1 or 48 kHz. Inputs are limited to 32 MB, 10 minutes and 64 MB of decoded PCM. Batch results are limited to 64 MB. Encrypted, chained and multichannel recordings are not supported.