Convert M4P to MP4 — Free Online Converter
Convert iTunes Protected AAC (.m4p) to MPEG-4 Part 14 (.mp4) online for free. Fast, secure audio conversion with no watermarks or registration....
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Works Everywhere
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How to Convert
Upload your .m4p file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mp4 file when it's ready.
About M4P to MP4 Conversion
M4P and MP4 are closely related — both use the MPEG-4 container format. M4P is simply Apple's DRM-protected variant with a .m4p extension, while MP4 is the universal MPEG-4 container standardized as ISO 14496-14. Converting M4P to MP4 removes the Apple-specific DRM tagging and produces a standard MP4 file that is recognized by virtually every media player, device, and platform in existence.
For audio-only M4P files, the MP4 output contains just an audio stream. MP4 is the most universally compatible container — it plays on Windows, macOS, Linux, iOS, Android, web browsers, smart TVs, and gaming consoles without any additional codec installation. This makes it the safest conversion target for maximum compatibility.
Why Convert M4P to MP4?
MP4 is the universal container. Every modern device, operating system, and web browser supports MP4 playback. Converting from the Apple-specific M4P extension to standard MP4 eliminates any compatibility issues with non-Apple software that may not recognize or may flag the .m4p extension. The audio content is identical, but the packaging is universally accepted.
Web platforms and social media sites accept MP4 uploads universally, but many reject or misidentify M4P files. If you want to upload audio from your iTunes library to a website, cloud service, or social platform, MP4 is the format most likely to be accepted without issues. The conversion is also necessary for embedding audio in web pages, where the <audio> element reliably supports MP4/AAC.
Common Use Cases
- Convert old iTunes purchases to the universally compatible MP4 container
- Prepare iTunes audio for web embedding using the HTML5 audio element
- Upload former iTunes music to cloud services and platforms that accept MP4 but reject M4P
- Normalize a mixed iTunes library to standard MP4 for cross-platform consistency
- Create browser-playable audio files from old DRM-era iTunes purchases
How It Works
FFmpeg performs a stream copy (-c:a copy) from the M4P container to an MP4 container. Since both use the same MPEG-4 box/atom structure, this is a trivial remux operation. The major MPEG-4 file type atom changes from Apple's proprietary variant to standard ISO BMFF (isom). The AAC audio stream transfers bit-identically. All standard metadata atoms (artist, album, artwork, track number) are preserved. The operation completes instantly regardless of file size.
Quality & Performance
Perfectly lossless via stream copy. The AAC audio data is bit-identical in the output MP4. No decoding or re-encoding occurs. File sizes are virtually identical. This is a pure container relabeling with no quality impact whatsoever.
Device Compatibility
| Device | M4P | MP4 |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No | Native |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Use stream copy for instant lossless conversion — this is a pure container operation
- 2MP4 is the safest target for maximum cross-platform compatibility
- 3For music library organization, M4A may be slightly preferable; for web use, MP4 is ideal
- 4Verify DRM is removed first; the conversion cannot proceed on FairPlay-protected files
- 5Batch convert your entire M4P collection to MP4 as a universal format normalization step
M4P to MP4 is the most universally useful conversion for old iTunes purchases. Instant, lossless, and the output plays everywhere. It should be the default choice unless you have specific reasons to target another format.