Audio Speed

Free online function

Mark your files

*Files deleted after 24 hours

Transform files free, Pro users can convert much larger files; Sign up now

Uploading

How to Compress Audio

1 Upload your audio file by clicking "Choose File" or dragging and dropping

2 Choose a speed: 0.25x, 0.5x, 1.5x or 2x

3 Click the button to process your audio

4 Download your audio file once processing is complete

Audio Speed FAQ

What is the Compress Audio tool?

This free online tool reduces your audio file size while maintaining good quality. Perfect for saving storage space or sharing files online.

What audio formats are supported?

We support MP3, WAV, AAC, FLAC, OGG, M4A, WMA, and other popular audio formats.

How much can audio files be compressed?

Compression rates vary by format and content. MP3 files at 320kbps can often be reduced to 128kbps with minimal quality loss.

Will compression affect audio quality?

Our smart compression minimizes quality loss. You can choose between different bitrates based on your needs.

Is there a file size limit?

Free users can compress audio files up to 50MB. Premium users have higher limits.

Can I process multiple files at once?

Yes, you can upload and process multiple files. Free users have some limits while Premium users enjoy unlimited batch processing.

Does this tool work on mobile devices?

Yes, our tool works on all devices including smartphones and tablets with any modern web browser.

Which browsers are supported?

Our tool works with all modern browsers including Chrome, Firefox, Safari, Edge, and Opera.

Are my files kept private?

Uploaded files are processed on our own conversion servers, nobody looks at them, and they are not shared. The upload and the converted file are both deleted automatically about 24 hours after the conversion, which leaves time to download the result. See /privacy/ for the full policy.

What if my download does not start?

Click the download button again. Make sure pop-ups are not blocked and check your downloads folder.

Will this affect the quality?

It depends on the formats. A lossless target such as PNG, WAV or FLAC keeps what the source holds; a lossy target such as JPG, MP3 or MP4 is usually re-encoded, which trades some detail for a smaller file.