Audio Compressor
Reduce the size of any audio file by re-encoding to a lower MP3 bitrate. 100% browser-based via ffmpeg.wasm.
How Audio Compressor works
Any common format — MP3, WAV, AAC, FLAC, OGG, M4A.
320 kbps (studio) → 192 kbps (high) → 128 kbps (standard) → 96 kbps (voice) → 64 kbps (podcast).
Encoded with LAME, the industry-standard MP3 encoder.
Frequently asked
Which bitrate should I use?+
128 kbps is fine for most music. 96 kbps is the sweet spot for voice/podcast. 64 kbps is telephone-quality.
Will the quality drop noticeably?+
Below 128 kbps, discerning listeners may hear the difference on complex music. For speech, 64–96 kbps is transparent.
Is my audio uploaded?+
No — compression runs in your browser via ffmpeg.wasm.
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