The simplest way: use iCloud Music Library

If you have an Apple Music subscription or iTunes Match, the easiest path is to turn on iCloud Music Library in your iPhone settings. This syncs your iTunes library to your phone automatically — you don't copy files manually at all. Open Settings on your iPhone, tap Music, then toggle on iCloud Music Library. Your songs appear in the Music app within a few minutes to a few hours, depending on how many you have.

This works for songs you bought from iTunes, songs you added from CDs, and even files you imported from other sources — as long as they're in a format iTunes recognizes (MP3, AAC, Apple Lossless, and a few others). The songs themselves stay in iCloud; your phone streams them when you play them, or you can download individual songs to your phone's storage for offline listening.

If you don't have Apple Music or iTunes Match, this option won't work for you. You'll need one of the manual methods below.

Key Takeaways

  • iCloud Music Library is the fastest method if you have Apple Music or iTunes Match, and it syncs automatically without manual copying.
  • If you don't have a subscription, you can plug your iPhone into a computer and use iTunes or Finder to sync songs directly to your phone.
  • Songs you buy directly from the iTunes Store on your iPhone download automatically and don't require any syncing setup.
  • Manual file transfer via USB works but requires your computer to be the source — you can't copy songs from your phone back to iTunes this way without third-party tools.

Syncing via USB cable on Windows or Mac

If you prefer not to use iCloud, you can connect your iPhone to a computer with a USB cable and sync songs the traditional way. On a Mac with macOS Catalina or later, open Finder and click your iPhone in the sidebar. On Windows or older Mac, open iTunes. In either case, click the Music tab and check the box next to "Sync Music."

You can sync your entire library or pick specific playlists. Once you've chosen what you want, click Apply or Sync. Your phone will copy those songs to its storage. This method uses your phone's actual storage space, so if you have thousands of songs and a smaller iPhone, you may run out of room.

The sync is one-way: songs go from your computer to your phone, not the other way around. If you add a song to your phone's Music app directly (by buying it from iTunes Store on the phone), it won't copy back to your computer's iTunes library unless you manually add it there.

Buying songs directly on your iPhone

Any song you purchase from the iTunes Store using your iPhone downloads directly to your phone. You don't need to sync or set up anything — it just appears in your Music app. This works as long as you're signed in with the same Apple ID you use on your computer.

This is the slowest method if you're trying to move a large library, but it's useful for individual songs or if you're adding new music while you're away from your computer.

Why some songs might not sync

If you added songs to iTunes from a CD or from a folder on your computer, iTunes needs to convert them to a format your iPhone understands. Most of the time this happens automatically, but very old or unusual file formats sometimes cause problems. If a song won't sync, right-click it in iTunes and choose "Create AAC Version" (on Mac) or "Create MP3 Version" (on Windows). Then try syncing again.

Songs protected by digital rights management (DRM) — older iTunes Store purchases from before 2009 — can only sync to an iPhone if you're signed in with the Apple ID that bought them. If you're using a different Apple ID on your phone, those songs won't transfer.

Checking storage space before syncing

Before you sync a large music library, check how much free space your iPhone has. Open Settings, tap General, then About. Look at the Available space number. Music files are typically 5 to 10 megabytes each, so a library of 1,000 songs takes roughly 5 to 10 gigabytes of storage.

If you don't have enough space, you can either delete other apps or files to make room, or sync only your most-played playlists instead of your entire library. iCloud Music Library avoids this problem because songs stream rather than taking up storage — but again, that requires a subscription.

Troubleshooting when songs don't appear

If you synced songs but they're not showing up in your Music app, first check that the Music app is actually showing your synced library. Open Music, tap Library at the bottom, and make sure you're not filtering by Downloaded or Offline. If you're using iCloud Music Library, the songs might still be uploading — this can take hours for a large library.

If you synced via USB and songs still don't appear, disconnect your phone, restart both your phone and computer, then reconnect and try syncing again. Sometimes the connection doesn't complete properly the first time.

Frequently Asked Questions

Can I sync songs from my iPhone back to my computer?

Not directly through iTunes or Finder. The sync is one-way by design. If you need to copy songs from your phone to your computer, you'll need a third-party tool like iMazing or CopyTrans. These aren't made by Apple, so research them carefully before installing.

What's the difference between iCloud Music Library and iTunes Match?

iTunes Match is a paid service ($99 per year) that uploads your entire library to iCloud. iCloud Music Library is the feature that syncs it to your devices and is included free with Apple Music. If you have Apple Music, you get iCloud Music Library automatically.

Do I need WiFi to sync songs to my iPhone?

For USB syncing, no — the cable provides the connection. For iCloud Music Library, yes, your phone needs WiFi or cellular data to download or stream songs. Syncing via USB is faster for large libraries anyway.

Will syncing delete songs that are already on my iPhone?

Only if you uncheck them in the sync settings. When you first set up syncing, iTunes or Finder will warn you if syncing would remove songs. You can always change what you're syncing without losing anything — just adjust your selections and sync again.