Fast, free MP3 to M4P converter. No registration required.
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Domande frequenti
Converting between lossless formats preserves perfect quality. When converting to lossy formats, our optimized encoding minimizes any audible difference. You can adjust bitrate to control quality vs. file size.
We preserve ID3 tags, album art, and metadata when both MP3 and M4P support them. Some metadata may not transfer between incompatible formats.
Pro users can batch convert multiple audio files simultaneously. Free users convert one file at a time with up to 20 free conversions per day (5/day without signup).
We support all standard sample rates from 8kHz (voice) up to 192kHz (studio quality). The default preserves your source file's sample rate.
Yes. Our audio converter handles music, podcasts, voice memos, and audiobook files. For podcasts, we recommend MP3 at 128-192kbps for the best balance of quality and file size.
Upload your .mp3 file by dragging it into the upload area or clicking to browse.
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Choose your output settings. The default settings work great for most files.
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Click Convert and download your .m4p file when it's ready.
Cos'è MP3?
MP3 is the most popular audio format worldwide. It uses lossy compression to reduce file size while maintaining acceptable audio quality for most listeners.
Dettagli formato
Nome completo
MPEG Audio Layer III
Estensione
.mp3
Caratteristiche principali
Universal compatibility
Small file sizes
Streaming support
ID3 tag support
Cos'è M4P?
M4P is the iTunes Protected AAC format, used by Apple for DRM-protected music purchased from the iTunes Store before 2009. It uses the MPEG-4 Audio container with Apple FairPlay encryption wrapping AAC-encoded audio. Unprotected M4P files (after DRM removal) can be converted to standard audio formats.