How to free up space on iPhone without deleting photos you love

Contents8 sections

1. Where is my iPhone storage actually going?
2. How do I free space without deleting any photos?
3. How do I find duplicate photos on my iPhone?
4. What about burst photos and screenshots?
5. Which videos take up the most space?
6. Should I use iCloud’s Optimise iPhone Storage?
7. Why hasn’t my storage gone up after deleting?
8. Questions people ask

Start in Settings > General > iPhone Storage to see what's taking the space. Then offload apps you don't use, clear duplicate and burst photos, remove old downloads and big videos, and empty Recently Deleted, because deleted photos keep using space for 30 days. None of this touches the photos you'd actually miss.

Where is my iPhone storage actually going?

Open Settings > General > iPhone Storage. After a moment you’ll see a coloured bar split by category, a list of apps sorted by how much space each one uses, and Apple’s recommendations, such as Offload Unused Apps. Tap Show to see them all.

That list is the honest starting point. On most full iPhones, a few big items do most of the damage: one or two apps, a long Messages history, a camera roll full of near-copies, or a handful of long videos. Fix those first and the small stuff rarely matters.

How do I free space without deleting any photos?

Start with everything that isn’t a photo.

Offload apps you don’t use. Offloading removes the app but keeps its documents and data, so nothing is lost. Tap Enable next to Offload Unused Apps in iPhone Storage, or turn it on at Settings > Apps > App Store > Offload Unused Apps (on iOS 17 and earlier, Settings > App Store).

Shorten your Messages history. Go to Settings > Apps > Messages > Keep Messages and choose 30 days or 1 year instead of Forever. Older messages and their attachments are then removed automatically. Be sure first: this applies to every conversation. To delete only the photos and videos from one chat, open it, tap the contact’s name, tap Photos, then Edit and Select.

Remove downloaded music and videos. Songs you’ve downloaded from Apple Music add up fast. Go to Settings > Apps > Music > Downloaded Music, tap Edit and remove what you no longer play. The same goes for films and series you’ve downloaded in streaming apps.

Clear Safari’s data. Go to Settings > Apps > Safari > Clear History and Website Data. It won’t free much, but it’s quick. For what that does and doesn’t clear, see what an iPhone cache cleaner can and can’t do.

On iOS 17 and earlier, app settings sit directly under Settings rather than under Apps.

How do I find duplicate photos on my iPhone?

Since iOS 16, the Photos app finds duplicates for you. In Photos, go to Collections, scroll to Utilities and tap Duplicates (on iOS 16 and 17 it’s under Albums). Tap Merge on a set and Photos keeps one photo with the best quality and the relevant details from the others. The rest move to Recently Deleted.

The album only appears once Photos has found duplicates, and the first scan can take a while on a big library.

What it doesn’t catch are the near-copies: ten burst frames of the same moment, a cropped re-save next to its original, a photo that came back through a group chat at a lower resolution. Our guide to why your camera roll has so many copies of the same photo explains each kind. Siftlo groups those sets and proposes the sharpest photo to keep, so you confirm a set at a time instead of comparing frames by eye.

What about burst photos and screenshots?

Bursts: open the burst in Photos, tap Burst at the top, then tap the circle on each frame you want to keep. Grey dots mark the frames Photos suggests. Tap Done and keep only your favourites.

Screenshots: in Photos, go to Collections > Media Types, open Screenshots and work backwards from the oldest. Most screenshots are taken for something that’s over within a week: a train time, a confirmation code, a map.

Which videos take up the most space?

Video is usually the biggest single category. Apple notes that faster frame rates and higher resolutions make larger files, and that ProRes video can be up to 30 times larger than HEVC.

Look for the long clips first: two forgotten videos from a concert can outweigh a thousand photos. If you shoot in 4K at 60 frames per second out of habit, check Settings > Camera > Record Video and pick a lower setting for everyday clips. For the built-in ways to shrink a clip you’d rather keep, see how to reduce a video’s size on iPhone.

If you need to send or keep a video rather than delete it, compressing it is often the better move. Siftlo’s video compression tool does that on the phone.

Should I use iCloud’s Optimise iPhone Storage?

If you already pay for enough iCloud storage, yes. With iCloud Photos on and Optimise iPhone Storage selected, your full-resolution photos and videos live in iCloud and the iPhone keeps space-saving copies, downloading the original when you open one. Turn it on at Settings > [your name] > iCloud > Photos (on iOS 27, tap iPhone Storage there first).

It only helps while iCloud has room. If iCloud is full too, clear the duplicates first so you aren’t paying to store copies twice, then see what to delete when your iCloud storage is full.

Why hasn’t my storage gone up after deleting?

Because nothing has left the phone yet. Deleted photos and videos go to Recently Deleted, where they stay for 30 days before they’re permanently removed. To get the space back now, open Photos, go to Collections > Utilities > Recently Deleted, unlock it with Face ID, tap Select and delete what you’re sure about.

That’s why Siftlo says queued to free after a clean rather than claiming the space early. The number in Settings only changes once Recently Deleted is emptied. Our guide to what “delete” actually does on iPhone and Android covers this in more detail.

If your problem is a photo format rather than space, see how to convert HEIC to JPG. If your photos are simply too big, here’s how to reduce photo size on iPhone. And with the space back, here’s how to organise your iPhone photos so they stay easy to find.

Questions people ask

Why didn't my storage go up after I deleted photos?

Deleted photos and videos sit in the Recently Deleted album for 30 days in case you change your mind. The space only comes back when they're permanently deleted, so empty Recently Deleted once you're sure.

Will offloading an app delete my data?

No. Offloading removes the app itself but keeps its documents and data. The icon stays on your Home Screen with a cloud symbol, and tapping it reinstalls the app with everything as it was.

Can I clear System Data on an iPhone?

Not directly. Apple says the iPhone removes cached and temporary files itself when it needs space. Clearing Safari's history and website data, and the other steps here, are the parts you control.