TinyFast lets you compress MP3 files on Mac easily and securely offline. Whether you’re optimizing podcasts, music tracks, or voiceovers, TinyFast reduces file sizes while keeping audio clarity intact.

Why Compress MP3 Files?

MP3 files can grow large, especially when recorded at high bitrates. Compressing them makes it faster to upload, share, and store audio while maintaining good sound quality. With TinyFast, you can control how much space you save. All without relying on online converters or cloud services. Everything runs locally on your Mac.

Step-by-Step Guide

Download TinyFast

Download and install TinyFast. Once installed, launch the app from your Applications folder to get started.

Get It on the App Store

Set Compression Quality

Adjust the compression level to balance sound quality and file size. TinyFast remembers your preferred bitrate settings for next time.

Drag and Drop Your MP3 Files

Drag your MP3 tracks or entire folders into TinyFast. The app automatically compresses each file in seconds, showing progress as it goes.

Export Optimized MP3s

Once compression is complete, drag your optimized MP3s out of TinyFast and drop them anywhere in Finder. Your audio will sound great at a fraction of the size.

Offline and Secure

TinyFast works entirely offline, so your MP3 files never leave your Mac. No uploads, no compression limits, and no privacy concerns, local audio optimization.

Features for MP3 Compression