When your iPhone runs out of storage, you may not be able to take photos, record videos, install apps, download updates, or save new files. The fastest solution is to find what is consuming the most space and remove content you no longer need.
iOS includes several tools for managing storage, including recommendations for unused apps, large attachments, downloaded files, and photos. Start with the biggest categories first, since deleting a few small files usually will not make much difference.
Check What Is Using Your iPhone Storage
Before deleting anything, check exactly what is taking up space.
- Open Settings > General > iPhone Storage.
- Check the storage bar to see how much space is used and what categories are taking up the most.
- Scroll through the app list to find apps using significant amounts of storage.
- Review the recommendations near the top of the screen for suggested ways to free up space.
This gives you a clear starting point instead of deleting files at random.
Delete or Offload Large Apps
Apps and their stored data can consume a significant amount of storage, particularly games and apps with downloaded content.
From Settings > General > iPhone Storage, select an app to see how much space it uses.
Choose Offload App to remove the app while keeping its documents and data. You can reinstall the app later when needed.
Choose Delete App if you no longer need the app and want to remove its associated data.
Remove Downloaded Media
Downloaded movies, TV shows, music, podcasts, and other offline content can use several gigabytes.
Check apps such as Apple TV, Apple Music, podcast apps, and streaming services for content saved for offline use. Remove downloads you have already watched or listened to.
Deleting an offline download generally removes the local copy rather than the content from your account.
Free Up Space From Photos and Videos
Photos and videos are often one of the largest sources of iPhone storage.
Open the Photos app and look for large videos, duplicate photos, screenshots, and screen recordings you no longer need. Long screen recordings are particularly worth checking because they can consume substantial storage.
After deleting unwanted media, open Photos > Recently Deleted if you need the storage back immediately. Otherwise, deleted content remains there until it is automatically removed.
If you use iCloud Photos, remember that deleting a photo or video from your iPhone also removes it from other devices using the same iCloud Photos library.
Use Optimize iPhone Storage
If your photo library is taking up too much space and you use iCloud Photos, iOS can keep smaller versions on the iPhone while storing the original, full-resolution versions in iCloud.
- Open Settings > [your name] > iCloud > Photos.
- Make sure Sync this iPhone is enabled.
- Select Optimize iPhone Storage.
This requires enough iCloud storage for your photo library. It can reduce local storage use while keeping your photos and videos available on the iPhone.
Delete Large Message Attachments
Messages can accumulate years of photos, videos, GIFs, documents, and other attachments.
- Open Settings > General > iPhone Storage.
- Select Messages.
- Review the storage categories and remove large attachments or conversations you no longer need.
Focus on large videos and other attachments rather than ordinary text messages, which generally use very little storage.
Clean Up WhatsApp and Other Messaging Apps
Messaging apps can store large amounts of media separately from Apple’s Messages app.
In WhatsApp, open Settings > Storage and Data > Manage Storage to review large files and frequently forwarded content. Delete media you no longer need.
Other messaging apps may offer similar storage-management tools. Check their settings if one appears unusually large in the iPhone Storage list.
Delete Unnecessary Files and Downloads
Files downloaded through Safari, Mail, messaging apps, and other services can remain on your iPhone long after you stop using them.
- Open the Files app.
- Select Browse and check On My iPhone and Downloads.
- Delete large PDFs, ZIP files, videos, documents, and other files you no longer need.
Check where a file is stored before deleting it. Removing a file from iCloud Drive can also remove it from other devices using the same iCloud account.
Clear Safari Website Data
Safari stores browsing history, cookies, caches, and other website data that can accumulate over time.
- Open Settings > Apps > Safari.
- Use the available options to clear browsing history and website data.
This is usually a secondary cleanup step because it may recover less space than removing large apps, videos, or downloads. Clearing website data can also sign you out of some websites.
Check iPhone Storage Recommendations
The iPhone Storage screen can provide recommendations based on the content stored on your device.
These may include offloading unused apps, reviewing large attachments, or optimizing stored content. Review each recommendation before enabling it so you know whether it deletes content or changes how it is stored.
Understand System Data
You may see System Data using a large amount of storage. This can include caches, logs, temporary files, Siri voices, fonts, and other system-related data.
System Data can change in size as iOS creates and removes temporary files. It is not the same as your personal files, and there is no need to manually delete individual system files.
If System Data appears unusually large, restart the iPhone and check its storage again. Installing an available iOS update may also help with temporary system storage.
Free Up Space Without Deleting Photos
If photos are consuming most of your storage, you have options besides deleting them permanently.
You can use Optimize iPhone Storage with iCloud Photos or transfer photos and videos to a Mac, PC, or another storage location before removing the local copies.
If you transfer your photos elsewhere, verify that the files are safely backed up before deleting them from your iPhone.
What Not to Delete
Do not remove large files simply because they appear at the top of the storage list.
Make sure important photos, documents, messages, and app data are backed up or no longer needed before deleting them. Be especially careful with iCloud-synced content because deleting it from your iPhone can also remove it from other devices.
You also do not need to manually remove iOS files or System Data to manage storage.
What to Do If Storage Is Still Full
If you have removed a large amount of content but the available storage has barely changed, restart your iPhone and check Settings > General > iPhone Storage again.
iOS may need some time to recalculate storage after large amounts of content are deleted. If storage remains unexpectedly full, check the storage categories again to identify what is still consuming space.
If the problem persists despite removing personal content, make a backup before considering more advanced troubleshooting such as erasing and restoring the iPhone.
Quick Ways to Free Up iPhone Storage
If you need to reclaim space quickly, start with the largest storage users:
- Open Settings > General > iPhone Storage.
- Delete or offload large apps you no longer need.
- Remove downloaded movies, music, podcasts, and other offline media.
- Delete large videos, screenshots, screen recordings, and unwanted photos.
- Review large attachments in Messages.
- Clean up large media files in WhatsApp and other messaging apps.
- Delete unnecessary files from the Files app and Downloads folder.
- Empty Recently Deleted if you need the storage immediately.
- Enable Optimize iPhone Storage if you use iCloud Photos.
- Restart your iPhone and check the available storage again.
