WAV Compressor

WAV stores audio as uncompressed PCM — every sample is preserved at full resolution, which is great for editing but wasteful for sharing. This compressor reduces file size by adjusting two main parameters: sample rate and channel count. Lowering sample rate from 44.1 kHz to 22 kHz or 16 kHz halves or trims the number of samples captured per second, which directly shrinks output size without requiring a lossy codec.

Here's how the process runs. Step one: upload your WAV file, which the tool validates for format and size before loading. Step two: choose a compression preset. High Quality keeps 44.1 kHz stereo for music or recordings where fidelity matters. Balanced drops to 22 kHz, which suits voice recordings, podcasts, and sound effects that don't need full spectrum response. Small Size targets 16 kHz mono and achieves the most aggressive reduction for speech or archival clips. Step three: FFmpeg WebAssembly re-encodes the file inside the browser and produces a new WAV output. Step four: review before-and-after size stats and download the compressed file.

Practical tip: if you're compressing speech or narration, mono at 22 kHz delivers much smaller files with no perceptible quality drop for most listeners. All processing happens locally in your browser. Files are never uploaded to our servers.