WAV to MP3 Converter
Convert uncompressed WAV files to MP3 format for universal compatibility and drastically smaller file sizes. Choose between CBR for consistent bitrates or VBR for optimal quality-to-size ratio. Professional-quality audio conversion powered by FFmpeg, all processing happens securely in your browser.
Recommended Settings
For Best Quality
- •VBR V0-V2 for near-transparent quality
- •CBR 320 kbps for maximum quality
- •Keep WAV originals as master copies
For Portability
- •VBR V5 for balanced quality and size
- •CBR 192 kbps for good compatibility
- •10x smaller files than WAV
Pro Tips
- •VBR mode provides better quality-to-size ratio than CBR
- •WAV files are 10-15x larger than MP3
- •Higher bitrates preserve more detail from WAV source
Most Popular
Most users choose VBR V2 or CBR 256 kbps for excellent quality
When to Use This Tool
Convert uncompressed WAV to MP3 for smartphones, tablets, and portable music players with universal compatibility and 10x smaller file sizes.
Recommended: 192-320 kbps
WAV files are too large for email and streaming. Convert to MP3 for uploading to platforms, social media, or sharing online.
Recommended: 256 kbps CBR
Reduce storage space from large WAV archives while maintaining good audio quality for everyday listening on portable devices.
Recommended: VBR V2-V4
How It Works
Upload your WAV audio file
Select encoding mode (CBR or VBR) and quality
FFmpeg converts uncompressed WAV to compressed MP3
Download your converted MP3 file
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by FFmpeg.wasm (WebAssembly) for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is WAV format?
WAV (Waveform Audio File Format) is an uncompressed audio format developed by Microsoft and IBM. It stores raw PCM audio data with no compression, resulting in very large file sizes but perfect audio quality.
Will I lose quality converting WAV to MP3?
Yes, MP3 is a lossy format that discards audio information to reduce file size. However, with higher bitrates (256-320 kbps) or VBR quality settings (V0-V2), the difference is imperceptible to most listeners. WAV files are typically 10x larger than MP3.
What bitrate should I choose?
For CBR: 320 kbps offers near-transparent quality, 256 kbps is excellent for most listeners, 192 kbps is good for casual listening, and 128 kbps is acceptable for speech. For VBR: V0 (~245 kbps) is near-transparent, V2 (~190 kbps) is excellent, and V5 (~130 kbps) is good for portable devices.
What's the difference between CBR and VBR?
CBR (Constant Bitrate) maintains the same bitrate throughout the file, resulting in predictable file sizes. VBR (Variable Bitrate) adjusts bitrate based on audio complexity, providing better quality at similar average file sizes. VBR is generally recommended for better quality-to-size ratio.
Why convert uncompressed WAV to compressed MP3?
Main reasons include: drastically smaller file sizes (10-15x reduction), universal device compatibility, easier online sharing and streaming, and reduced storage requirements. Keep WAV files as master copies and use MP3 for everyday listening on portable devices.