Audio Compressor
Compress MP3, WAV, FLAC, OGG, and M4A audio files locally. Pick a target format and quality, then download the smaller file.
Drop your audio file here
or browse files from your computer or phone
How to use Audio Compressor
Choose any supported audio file (MP3, WAV, FLAC, OGG, M4A).
Pick a smaller output format and a quality preset.
Download the compressed file. The size comparison is shown instantly.
Frequently Asked Questions
Which audio formats can I compress?
You can compress MP3, WAV, FLAC, OGG, and M4A/AAC files. Output options are MP3, OGG, FLAC, and WAV, depending on what your browser supports for decoding the source.
What does the quality setting do?
Higher quality keeps more audio detail and produces a larger file. Lower quality shrinks the file more aggressively. For speech, medium quality is usually indistinguishable from the original.
Are my files uploaded anywhere?
No. This is a browser-native compressor. Audio is decoded and encoded locally with Web Audio and WASM, and nothing is transmitted to any server.
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Every tool runs 100% locally in your browser memory with zero server uploads.
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