SOFTWARE EVOLUTION / macOS
New format. Same collection.
Convert MP3, WAV, AIFF, M4A and FLAC locally, with batches of up to 50 files and fixed high-quality MP3 output.
Explore the app01 Audio formats
Convert between MP3, WAV, AIFF, M4A and FLAC locally. MP3 output uses LAME at a fixed 320 kbps.
MP3 320 kbps · WAV · AIFF · M4A · FLAC
02 Batch conversion
Drop or browse up to fifty audio files and choose the output format. Conversion works with copies, keeping your originals safe.
Up to 50 files · originals preserved
03 Playback
Use built-in playback to listen to converted files. Core audio conversion and playback work offline on your Mac.
Built-in preview
04 Appearance
Use color themes and custom wallpaper to personalize the converter. Your audio processing stays local.
Themes · custom wallpaper
YOUR NEXT STEP
Fast, lightweight, and focused on privacy: the simplest way to convert your audio on Mac. Convert between MP3, WAV, AIFF, M4A and FLAC completely offline. No internet required, no analytics or trackers, and your original files stay safe — we work with copies. Drop or browse up to 50 files, choose your output format, and convert instantly. High-quality 320kbps MP3 encoding powered by LAME, beautiful color themes (Blue & Orange), custom wallpaper support, and built-in playback to preview your converted tracks.
As the name suggests, Offline Audio Converter came from the need to convert WAV tracks, which took up a lot of space in my library, to M4A format.
When I created this Offline Audio Converter, I carefully analyzed how M4A actually sounds compared to MP3. I didn't notice much difference, so I decided to convert everything :)
It became an essential tool for managing my music library efficiently, saving space while maintaining quality. ⚡
This is the story of Offline Audio Converter. ✨
