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iPhone storage full? 8 ways to free up space without losing your photos

Updated

In short

  • First, see what takes the space: Settings › General › iPhone Storage.
  • For most people Photos comes first: start with heavy videos, then duplicates, bursts and screenshots.
  • Deleting frees nothing right away: empty Recently Deleted, or iOS keeps everything for 30 days.
  • Only then: Messages and WhatsApp attachments, unused apps, downloads.

See what fills your iPhone

Before deleting anything, look at where the space goes. iOS does the maths for you:

  1. Open Settings, then General.
  2. Tap iPhone Storage and give it a few seconds to calculate.
  3. The coloured bar shows the big categories; the list below ranks apps from heaviest to lightest.
  4. If iOS shows recommendations, tap Show All: they often point straight at the big files.

If Photos is at the top, start there: that's almost always where the gigabytes sleep.

1. Start with videos, that's where the gigabytes are

A single minute of 4K video can weigh several hundred MB, while a photo weighs a few MB. Deleting ten useless videos often frees more space than a thousand photos.

The catch: the Photos app can't sort videos by size. We cover three ways to find the heaviest ones in a separate guide: Find the videos taking up the most space on iPhone.

2. Delete duplicates

Since iOS 16, Photos finds exact copies: open Photos, scroll to the Utilities section (or Other, depending on your version), tap Duplicates, then Merge.

That tool only sees identical copies. Near-identical shots, bursts and images re-sent over WhatsApp slip through: here's how to handle them in Delete duplicate photos on iPhone.

3. Bursts, screenshots and failed shots

In Photos, the Media Types collection groups Bursts and Screenshots, among others. They're often hundreds of images you'll never look at again: a 2022 booking code, a chat screenshot, fifteen shots of the same pool jump.

  • Screenshots: select everything that's out of date and delete it in one go.
  • Bursts: open the burst, tap Select, keep the best frame and delete the rest.
  • Blurry or failed photos: the fastest way is to review them one by one, full screen.

4. Empty Recently Deleted

The classic trap: you delete hundreds of photos and storage doesn't move. That's because iOS keeps them for 30 days in Recently Deleted, in case you change your mind.

  1. Open Photos and scroll to Utilities (or Other).
  2. Tap Recently Deleted and unlock with Face ID or your passcode.
  3. Tap Select, then Delete All, and confirm.

Careful

There's no way back after this. Check nothing important is in there first.

5. Turn on Optimize iPhone Storage

If you use iCloud Photos, turn on Optimize iPhone Storage in the Photos settings (the path depends on your iOS version: Settings › Photos, or Settings › [your name] › iCloud › Photos). Originals stay in iCloud and the iPhone keeps lighter versions, downloaded on demand.

Two limits: you need enough iCloud space, and a connection to see photos in full quality. It relieves the iPhone, but it doesn't tidy anything.

6. Messages and WhatsApp attachments

  • Messages: in Settings › Messages, Keep Messages can go from Forever to 1 Year. iPhone Storage › Messages also lists the biggest attachments.
  • WhatsApp: in WhatsApp, Settings › Storage and Data › Manage Storage ranks chats by size and lets you delete received videos.
  • Received photos: if every group photo lands in your gallery, turn off auto-save in WhatsApp (Settings › Chats › Save to Photos).

7. Offload apps you don't use

In iPhone Storage, tap an app then Offload App: the app goes away but its data stays, and it comes back as it was if you reinstall it. To automate it: Settings › App Store › Offload Unused Apps.

8. Forgotten downloads

Shows downloaded for a trip, offline playlists, podcasts, maps: check Netflix, Spotify, Podcasts or Google Maps in the storage list. They sometimes weigh several GB on their own.

What to avoid

  • "Cleaner" apps that upload your photos to their servers to analyse them: your memories have no business on a stranger's server.
  • Mass-deleting without a copy of your important photos (iCloud, computer or external drive).
  • Turning off iCloud Photos to "save space" without understanding what will be removed from the iPhone.

FAQ

Why is my storage still full after deleting photos?

Because they're still in Recently Deleted for 30 days. Empty that folder, then give iOS a few minutes to recalculate storage.

If I delete a photo from my iPhone, is it deleted from iCloud?

Yes, if iCloud Photos is on: deletions sync across all your devices. Copy what you want to keep before a big clean-up.

What is the "System Data" taking so much space?

Caches and temporary files managed by iOS. There's no button to clear them; a restart and an iOS update often shrink them.

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