Free M4A to WAV Converter — Convert Apple Audio Online
Convert Apple M4A audio files to uncompressed WAV format in your browser. Browser-based tool using FFmpeg WebAssembly — fast, private, no upload needed.
Drag & drop or click to upload an M4A file
Supports .m4a files from Apple Music, iTunes, and Voice Memos
Audio Info
WAV Preview
Powered by FFmpeg WebAssembly. All processing happens locally in your browser.
M4A → WAV in Seconds
Need studio-quality audio from your Apple Voice Memos, iTunes purchases, or GarageBand recordings? Convert M4A files to lossless WAV format — entirely in your browser with no file uploads and zero privacy concerns.
Key Features
Apple Format Support
Handles M4A files from iTunes, Apple Music, GarageBand, iPhone Voice Memos, and QuickTime.
CD-Quality Output
Exports 44.1 kHz, 16-bit stereo WAV — the professional standard for audio production and editing.
100% Private
All conversion happens locally in your browser. Your files are never sent to any server.
Fast Processing
Powered by FFmpeg WebAssembly for near-native conversion speeds right in your browser tab.
Common Use Cases
Voice Memos
Convert iPhone voice recordings to WAV for professional podcast production
DAW Import
Import into Pro Tools, Logic Pro, Ableton, or FL Studio which require WAV format
GarageBand Exports
Convert GarageBand M4A exports to WAV for further editing in other software
How this M4A to WAV Converter works
This converter transforms Apple M4A (MPEG-4 Audio) files into uncompressed WAV (Waveform Audio File Format) using FFmpeg WebAssembly running entirely within the browser. The tool first loads the FFmpeg engine from a CDN, writes the M4A file to FFmpeg's virtual filesystem, then executes the decoding and re-encoding commands using the PCM signed 16-bit little-endian codec (pcm_s16le) at 44.1 kHz stereo — the standard CD-quality format.
The output WAV file is uncompressed PCM audio, making it significantly larger than the source M4A but of lossless quality from an FFmpeg processing standpoint. WAV files carry no container-level restrictions and are natively supported by every professional DAW (Digital Audio Workstation) including Pro Tools, Logic Pro, Ableton Live, and FL Studio. FFmpeg's progress events update a real-time progress bar as frames are decoded and written.
Privacy is guaranteed by the browser-local processing model — your M4A audio files are never transmitted to any server. The integrated HTML5 audio player allows immediate preview of the converted WAV directly in the browser. Note that M4A files protected by Apple FairPlay DRM cannot be processed, as decryption keys are unavailable to browser-based tools.
How to Use
Upload M4A file
Drag and drop or click to select an M4A audio file from your device.
Convert to WAV
Click Convert — FFmpeg processes the audio locally in your browser.
Preview & Download
Listen to the converted WAV and download it instantly.
Example Usage
An iPhone Voice Memo converted to WAV for professional audio editing in a DAW.
Frequently Asked Questions
What is an M4A file?
Why convert M4A to WAV?
Will audio quality improve after conversion?
Is my audio file uploaded to a server?
What sample rate and bit depth is the output WAV?
Related Tools
MP3 to WAV Converter
Convert MP3 files to high-quality WAV format instantly. Create uncompressed audio files for editing and production.
WAV to MP3 Converter
Convert WAV files to MP3 format instantly. Compress large audio files for easier sharing and streaming.
Online Tone Generator
Generate pure audio tones and test frequencies. Sine, Square, Sawtooth waves for audio testing and tinnitus relief.
MOV to MP3 Converter
Extract audio from Apple MOV videos and save as MP3 with selectable bitrate.
M4A to MP3 Converter
Convert Apple M4A audio files to universally compatible MP3 with bitrate control.
M4A to GIF Converter
Convert M4A audio files into animated GIF waveforms instantly. Create visual sound waves from your audio tracks.
The M4A to WAV Converter is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.
Featured on
