Free Online Tool

Audio Compressor

Q: How much can I compress my audio?

Compression depends on the original format and quality. Converting a WAV to 128kbps MP3 typically reduces file size by 80-90%. The tool shows you the exact savings.

Q: Will compression reduce audio quality?

Some quality loss is expected with lossy compression. At 128kbps, most people can't tell the difference. Use 192kbps or higher for near-transparent quality.

Reduce audio file size while keeping quality. Choose your compression level and see the savings instantly.

Drop your audio file here

or click to browse

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Browser tools send audio to the cloud. Andak runs entirely on your Mac — your voice data never leaves your device.

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Why use this compressor?

Multiple presets

Choose from 6 bitrate levels from high quality to ultra-compact.

Size comparison

See before/after file size and exact percentage saved.

100% private

Your audio stays on your device. Nothing is uploaded.

Instant results

Compress files in seconds with WebAssembly speed.

How to compress audio

Upload your audio

Drag & drop or browse for any audio file.

Choose compression level

Pick a bitrate from 32kbps to 192kbps.

Compress

Click the button and wait for processing.

Compare & download

See size savings and download your file.

Frequently asked questions

How much can I compress my audio?

It depends on the source. A WAV file compressed to 128kbps MP3 typically shrinks by 80-90%. A 320kbps MP3 reduced to 128kbps saves about 60%.

Will compression reduce audio quality?

Lossy compression always involves some quality trade-off. At 128kbps, most listeners can't hear a difference. For critical listening, use 192kbps or higher.

What output format does the compressor use?

The compressor outputs MP3 format using the LAME encoder, which offers the best balance of file size, quality, and compatibility.

Is there a file size limit?

There's no enforced limit. Processing happens in your browser, so very large files may take longer depending on your device.

Need more audio tools?

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