Large audio files eat through email attachment limits and storage quotas. Our free compress audio tool re-encodes your audio at a lower bitrate, dramatically reducing file size while keeping the sound quality you need.
Choose from four bitrate levels: 64 kbps for voice-only content, 128 kbps for a good balance, 192 kbps for high-quality music, or 256 kbps when you want the best possible compressed quality. The tool outputs MP3 for maximum compatibility.
Everything runs in your browser via FFmpeg.wasm. Your audio files are never uploaded to any server. No watermarks, no daily limits, no account required.