Convert WAV to MP3 Online Free
Convert WAV files to MP3 in your browser. Free, private, no upload. Adjust the bitrate and download. No account needed.
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First run downloads ~31MB engine · processing stays on your device
Usually takes 5–30s depending on file size
About WAV to MP3 conversion
WAV keeps every sample, which makes the file large. This converter encodes the WAV to MP3 at the bitrate you choose, so a podcast episode or a voice memo fits in an email or on a phone. The original WAV stays untouched on your device.
MP3 is lossy. Use 128 or 192 kbps for speech and 320 kbps for music. A higher bitrate makes a larger file and cannot add detail the WAV already has.
Frequently asked questions
What bitrate should I use for speech?
128 kbps is enough for a single voice. Choose 192 kbps when the recording includes music or several speakers.
Will the MP3 sound different from the WAV?
At 192 kbps or higher, most speech sounds the same. Music at 320 kbps is hard to tell apart from the WAV in normal listening.
Is the WAV uploaded to a server?
No. The conversion runs in your browser with FFmpeg WebAssembly. The file never leaves your device.
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