Compress Audio Without Losing Quality

How to compress an audio file

Click the Upload Audio File button or drop your file onto the zone. Supported formats include MP3, WAV, FLAC, AAC, OGG, OPUS and WEBM. Once the file loads, you will see its name and size confirmed at the top of the card.

Pick a quality preset that fits your goal, then click Compress Now. When it finishes, you get a size comparison showing exactly how much space you saved before the download button appears.

Choosing the right preset

High (192 kbps) is the right call for music. The difference between this and the original is hard to notice on most speakers and earphones, but the file can be 30 to 50 percent smaller than a WAV or FLAC source.

Medium (128 kbps) is what most streaming platforms use and it covers the vast majority of everyday listening needs. A good default if you just want a smaller file and are not too picky about critical listening.

Low (96 kbps) starts to show some compression at high frequencies on good headphones, but it works fine for casual playback and cuts file size significantly. Podcast (64 kbps) is purely for voice. Speech is perfectly intelligible at this bitrate and the files are tiny, which matters when you have hours of recordings to store.

When compression is not the right move

If you are working on a project that needs editing, keep the original file and compress only when you have a finished export. Compressing mid-project adds generation loss each time, which stacks up and degrades quality in ways that are hard to recover from.

Also note that compressing an already-compressed file does not always help. If your source is a 128 kbps MP3 and you compress it to 128 kbps, you are just re-encoding the same data and the output may actually sound slightly worse. Compression works best when your source is a higher-quality file.