BrowserTools
ready — local

Audio Compressor

Reduce audio file size by lowering the bitrate. Processing happens entirely in this tab — no upload.

Drop audio files here, or click to choose
128 kbps

How this works

This tool uses ffmpeg.wasm to run FFmpeg in the browser. It re-encodes the audio using the specified bitrate (for lossy formats) or lossless compression (for FLAC). All processing happens locally — no upload to a server.

Common uses

Shrinking voice memos for email, reducing music file size for mobile devices, or preparing audio for web uploads with size limits.