Compress iPhone Voice Memos — Reduce M4A and WAV Size

Long iPhone Voice Memos — interviews, lectures, meetings — can be 50–200MB. Compressing to 64–96kbps MP3 reduces them by 80–90% with no audible difference for speech content. Perfect for sharing by email or messaging apps.

Audio Compressor

Compress MP3, WAV, FLAC, and M4A files up to 90% smaller. Choose your bitrate — runs entirely in your browser, no upload.

Compress Audio Free

Compressing voice recordings vs music

Speech content is far more compressible than music. A 64kbps MP3 is more than sufficient for voice recordings — it's the same bitrate used by most podcast platforms for speech content. Compressing a 1-hour meeting recording from 100MB WAV to 30MB at 64kbps is nearly lossless for practical listening.

Up to 90%

size reduction

MP3, WAV

FLAC, M4A accepted

100%

browser-based