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Convert WAV to MP3

Free WAV to MP3 converter that runs in your browser. No upload, no signup, no watermark. Files never leave your device.

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100% local. Your file is processed in this tab and never uploaded.

How to Convert WAV to MP3

Four steps. No uploads, no account, no waiting.

1

Upload your WAV file

Drag and drop your WAV file into the converter above, or click to browse and select it from your device. Files stay on your machine and are never uploaded to a server.

2

Select MP3 as the output format

Open the output format picker and choose MP3. The converter automatically detects the input and only shows compatible output formats for your file.

3

Adjust settings (optional)

Use the sliders icon to trim the clip, add a fade in or out, and adjust the volume before converting.

4

Convert and download

Click Convert to run the conversion in your browser. The output MP3 file downloads automatically when ready, with no server round-trip and no watermarks.

Why Convert WAV to MP3?

WAV files store uncompressed raw audio data, making them impractically large for everyday storage, streaming, and sharing.

A three-minute WAV file is 30-50 MB; the same audio as MP3 at 320 kbps is under 8 MB with no audible difference on standard playback systems.

WAV
MP3
Compression
Uncompressed (PCM)
Compression
Lossy
Bit depth
16 / 24 / 32-bit
Typical bitrate
128-320 kbps
Sample rate
Up to 192 kHz
Sample rate
44.1 kHz / 48 kHz
Metadata
Limited
Metadata
ID3 tags
Device support
Universal
Device support
Universal
Typical use
Pro audio, mastering
Typical use
Music, podcasts

Related Conversions

Other common format conversions you might need.

MP3 to WAV
Convert MP3 files to WAV
AAC to MP3
Convert AAC files to MP3
FLAC to MP3
Convert FLAC files to MP3
OGG to MP3
Convert OGG files to MP3

Frequently Asked Questions

What MP3 bitrate should I choose?
320 kbps is the highest standard MP3 bitrate and is indistinguishable from the source WAV in double-blind tests on typical speakers and headphones. 192 kbps is sufficient for casual listening.
Will I lose audio quality converting WAV to MP3?
MP3 encoding is lossy and discards audio data that psychoacoustic models consider least perceptible. At 320 kbps, most listeners cannot distinguish the output from the original WAV.
Can I keep the original WAV for archiving?
Yes. Always archive your original WAV files. MP3 compression is irreversible, and you may need the lossless WAV for future editing, remixing, or format conversion.
Is the metadata (artist, title, album) preserved?
The converter preserves standard ID3 metadata tags from the WAV source in the output MP3 file.
Is this conversion really free, and is my file private?
Yes. The browser conversion runs entirely on your device using WebAssembly. Files are never uploaded to a server and are discarded from memory when you close the page. There is no file size tracking, no account link to your upload, and no cloud storage.
Do I need to create an account to convert files?
No. The browser converter works without signing in. An optional account is only needed if you want to save favorites, track conversion history, or upgrade to the desktop app with Polar license activation.
How fast is the conversion?
Most browser conversions complete in a few seconds. Large files (over 100 MB) or heavy formats (video, high-page PDFs) take longer depending on your device's CPU and available memory. The desktop app runs significantly faster using native engines.

Convert WAV to MP3 Faster with TeraConvert Desktop

Batch files. No size limits. Native engine. No browser tab.

Batch convertNo size limitsNative speed100% private
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