What bitrate should I choose?

128kbps is good for speech and casual listening. 192kbps is standard quality. 320kbps is near-lossless quality for music.

Does this work offline?

Yes. FFmpeg.wasm processes your audio entirely in your browser. Your files never leave your device.

WAV files are uncompressed and very large. Converting to MP3 reduces file size by up to 10x while maintaining good audio quality for most uses.

No server limit. Large WAV files may take longer to process depending on your device.

Convert WAV audio files to MP3 format offline in your browser. Choose bitrate. No upload, 100% private and free.

No Upload 100% Private Free

Uses FFmpeg.wasm. First use downloads ~25MB (cached after).

Initializing...

or click to select WAV files

WAV files are uncompressed and large. MP3 reduces file size by up to 10x while maintaining good audio quality for most uses.

Yes. FFmpeg.wasm runs entirely in your browser. Your files never leave your device.

No server limit. Large WAV files may take time to process depending on your device.