Different kinds of files
An image stores pixels; an audio file stores a sound waveform. Neither contains the other, so no tool can turn a picture into a sound recording.
Looking to turn a ICNS into MP3? Here's the honest answer — and the conversions that actually work.
Turn your file into a share-worthy AI Effect — one tap, no prompts.
ICNS is the macOS icon format, storing an app icon at multiple resolutions in one file.
ICNS is used by macOS; it opens in Preview, Icon Composer and many editors.
MP3 is the universal compressed audio format, balancing small size with good quality.
MP3 plays in every media player and browser.
No. Images and audio are fundamentally different, so there's nothing to convert. You can convert your ICNS to PNG or ICO instead.
Maybe a video or slideshow with audio — use a video tool. A ICNS image can't hold sound.
ICNS converts cleanly to PNG or ICO — free, no sign-up, no watermark.