M4P to ALAC Converter
Convert M4P files to ALAC format online for free. No installation or registration required.
Quick Answer: How to Convert M4P to ALAC
M4P is a protected (DRM) AAC audio file from the iTunes Store era, while ALAC is Apple Lossless — FLAC's counterpart inside the MP4/M4A container. Converting M4P to ALAC wraps or re-encodes your audio into the ALAC structure, but be aware: quality lost when the M4P was created stays lost — a ALAC made from a lossy source is a perfect copy of an imperfect original. Run it free at practicalwebtools.com/convert/audio/m4p-to-alac: drop in your M4P, adjust settings if you like, and download the ALAC — no signup, no upload, everything stays on your device.
M4P vs ALAC: Which One and Why
M4P is a protected (DRM) AAC audio file from the iTunes Store era, Apple, 2003–2009 — iTunes Plus (2007+) and full DRM removal (2009) ended it. ALAC is Apple Lossless — FLAC's counterpart inside the MP4/M4A container, released by Apple in 2004; open-sourced under Apache 2.0 in 2011. People reach for M4P mainly for legacy iTunes purchases (pre-2009), while ALAC is the usual choice for Apple Music lossless streaming, ripping CDs for the Apple ecosystem, iPhone/local-library audiophile setups. M4P's headline strength: none today — the DRM adds only restrictions. ALAC's: perfect fidelity inside the iTunes/Apple Music pipeline. On the other side of the ledger, M4P limitation: FairPlay-protected audio cannot be converted by any tool, including this one — only Apple-authorized playback works — and ALAC limitation: no advantage over FLAC outside the Apple world.
How to Convert M4P to ALAC Online
- 1
Add your M4P file: Drag and drop it into the converter, or click to browse. M4P files up to the size limit are accepted, and nothing is uploaded — processing runs locally in your browser.
- 2
Set ALAC options: The converter re-encodes into ALAC, which is lossless — roughly 40–60% of original size, comparable to FLAC. Set quality to maximum since you're going lossless — no reason to trim bits you already have.
- 3
Download the ALAC: Conversion runs on your device. When it completes, download the ALAC file — repeat for as many files as you need, free and unlimited.
Key Facts
- M4P: Apple, 2003–2009 — iTunes Plus (2007+) and full DRM removal (2009) ended it, AAC inside MP4 with FairPlay DRM.
- ALAC: released by Apple in 2004; open-sourced under Apache 2.0 in 2011, lossless — roughly 40–60% of original size, comparable to FLAC.
- Converting M4P → ALAC cannot restore what the M4P encoding already discarded — the ALAC is a faithful copy of the M4P, not of the original recording.
- M4P strength: none today — the DRM adds only restrictions.
- ALAC strength: perfect fidelity inside the iTunes/Apple Music pipeline.
- M4P limitation to know: FairPlay-protected audio cannot be converted by any tool, including this one — only Apple-authorized playback works.
- ALAC limitation to know: no advantage over FLAC outside the Apple world.
- Fun fact: Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback
Format Background
M4P
M4P — Apple, 2003–2009 — iTunes Plus (2007+) and full DRM removal (2009) ended it. there is no legitimate M4P converter: the audio is encrypted. Re-download as M4A from iTunes, or use iTunes Match to upgrade
ALAC
ALAC — released by Apple in 2004; open-sourced under Apache 2.0 in 2011. Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback
Frequently Asked Questions
Will converting M4P to ALAC lose quality?
The ALAC output preserves everything present in your M4P file — but M4P is AAC inside MP4 with FairPlay DRM, so information discarded when that file was made is gone for good. You get a bit-perfect copy of what you have, not a restoration of the original recording.
Are my files uploaded anywhere during M4P → ALAC conversion?
No. This converter runs on WebAssembly inside your browser — your M4P file is read from disk, processed by your device's CPU, and the ALAC is written back locally. There is no server upload at any point, which also means no size-based throttling or waiting in queue.
Does converting M4P to ALAC restore lost quality?
No — and this trips up a lot of people. M4P is AAC inside MP4 with FairPlay DRM: the data it discarded at creation time cannot be reconstructed by any converter. A ALAC from a M4P source sounds exactly as good as the M4P, no better. The reasons to convert anyway are compatibility, editing headroom, and future-proofing — not restoration.
What ALAC settings should I choose?
For Apple Music lossless streaming, start with the converter's default preset — it's tuned for the common case. Since the target is lossless, use maximum quality; the file grows but nothing is discarded.
Why is my ALAC file larger/smaller than the M4P original?
ALAC is lossless — roughly 40–60% of original size, comparable to FLAC, while M4P is AAC inside MP4 with FairPlay DRM. File size follows from that: moving to a less aggressive or lossless target grows the file; moving to efficient lossy compression shrinks it. Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback
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Guides and explainers on the Practical Web Tools blog cover audio and video formats in depth — or browse every audio converters pair from the hub.