Convert your .wav files to .mp3 format online for free. No software to install. Fast, secure, and easy.
Pro account required for audio & video
Drag and drop your .wav file or click to browse.
Select MP3 as your output format.
Click Convert and download your .mp3 file.
WAV files are massive — about 10 MB per minute at CD quality. Converting to MP3 compresses audio to roughly one-tenth the size while maintaining quality that is indistinguishable from the original for most listeners at 192-320 kbps. This makes your audio practical for sharing, uploading, streaming, and mobile storage.
WAV (Waveform Audio File Format, introduced in 1991) uses None (raw PCM) or optional IEEE float compression. MP3 (MPEG Audio Layer III, introduced in 1993) uses Lossy (psychoacoustic model + MDCT) compression. WAV browser support: Universal. MP3 browser support: Universal.
Converting from WAV (lossless) to MP3 (lossy) will reduce file size significantly, but some quality is permanently discarded during compression. At higher quality settings (80-90%), the visual or audible difference is typically imperceptible. At lower settings, compression artifacts may become noticeable. Always keep your original WAV file as a master copy.
A 4-minute WAV song at CD quality (44.1kHz, 16-bit stereo) is approximately 40 MB. As MP3 at 320 kbps: ~9 MB (77% reduction). At 192 kbps: ~5.5 MB (86% reduction). At 128 kbps: ~3.7 MB (91% reduction).
Use LAME VBR V0 (~245 kbps average) for transparent quality that is virtually indistinguishable from the WAV original in blind tests. For podcast and speech content, 128 kbps mono is sufficient and saves significant bandwidth. Always keep the original WAV as a master file.
Convert WAV to MP3 with 3 free conversions per day. No hidden fees.
Create a free account in 10 seconds and start converting immediately. No credit card required.
Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion.
Convert files from any device — desktop, tablet, or phone. No software to install, works in any modern browser.
SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.
Your converted .mp3 file maintains the best possible quality. No unnecessary compression or quality loss.
Audio conversion requires a Pro account. See pricing — starting at $4.99/month
You get 3 free conversions per day. Audio conversions require a Pro account.
Most files convert in under 10 seconds. Larger files may take a bit longer depending on size.
Yes. Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion. We never store your files.
Currently, SquishConvert converts one file at a time. Batch conversion is coming soon — stay tuned!
Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.