Convert MP4 to M4A

Convert MP4 video to M4A online in a few seconds, with automatic file deletion. Free, fast and without an account.

Your file is deleted automatically after conversion.

How to convert MP4 to M4A

M4A (AAC) is the native audio format of Apple devices and iTunes, with better quality than MP3 at the same bitrate. The MP4 is converted with FFmpeg, the industry-standard media engine, on our server and deleted immediately afterwards. It is the easiest way to keep the music, a talk or a voice track from a video.

Step 1: Choose your MP4 file
Drag and drop a .mp4, .m4v file onto the converter or click to browse. It works on desktop, tablet and phone.
Step 2: Convert to M4A
The file is converted by FFmpeg on a secure server.
Step 3: Download the M4A
Save the M4A file to your device. You can start again with another file right away.

Good to know

Only the soundtrack is extracted; the video stream is discarded, so the result is much smaller than the original.

Why use this MP4 to M4A converter?

M4A (AAC) is the native audio format of Apple devices and iTunes, with better quality than MP3 at the same bitrate.
Keeps the original sample rate and stereo channels.
No watermark, no length limit within the file size cap.
Files are deleted automatically after conversion.

Is it free?

Yes. Converting MP4 to M4A is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device. This server-based conversion accepts files up to 100 MB.

Is my file uploaded?

This conversion needs a server engine, so the file is uploaded over an encrypted HTTPS connection, converted in an isolated temporary folder and deleted automatically as soon as the result is sent back. Nothing is kept, logged or shared.

About the formats

What is MP4?

MP4 (MPEG-4 Part 14) is a container format standardised by ISO and derived from Apple's QuickTime format. It is not a codec itself: it usually holds H.264 or H.265 (HEVC) video and AAC audio, and can also carry subtitles, chapters and metadata. The .m4v extension is a variant used mainly by Apple. MP4 plays on practically every phone, computer, smart TV and browser.

Use MP4 whenever you want a video to play everywhere: sharing with others, uploading to social networks or embedding on a website. With H.264 inside it offers the best compatibility; H.265 gives smaller files but is not supported by every device.

MP4 (MPEG-4 Part 14)

What is M4A?

M4A is an MPEG-4 file that contains only audio; the extension simply tells players there is no video inside. The sound is usually compressed with AAC (lossy) or ALAC, Apple Lossless. It was popularised by iTunes and is the format of iTunes Store purchases, Apple voice memos and many audiobooks and podcasts.

Use M4A for music and recordings in the Apple ecosystem, where it offers better quality than MP3 at the same bitrate. If you need to play the file on older players or systems with limited support, MP3 remains the most compatible option.

M4A (MPEG-4 audio)

Frequently Asked Questions

Is MP4 to M4A conversion free?

Yes. It is free, with no watermark, signup or email required. Local conversions have no artificial file-size or daily cap; the practical limit is your device. This server-based conversion accepts files up to 100 MB.

Will the M4A sound the same as the MP4?

At the default bitrate the difference is inaudible for most people. Choose a higher bitrate if you plan to edit or archive the audio.

Are tags such as title and artist kept?

Common tags are copied when the source contains them.

Is it safe to convert mp4 to m4a here?

Yes. The upload is encrypted, the file lives only in a temporary folder during conversion and it is deleted automatically afterwards. We do not read, keep or share your files.

Do I need to install anything?

No. Everything runs in a modern browser (Chrome, Edge, Firefox or Safari) on Windows, macOS, Linux, Android and iOS. There is no app, plugin or account.

AudioProcessed locally