The warning usually arrives at the worst moment. A phone that was fine a few weeks ago now says storage is almost full, the camera hesitates before saving a photo, and an app update waits for room that is not there. In the example used through this guide, the phone is nearly full, and the bulk of the space is taken by photos, videos, and downloads that built up quietly over time. The fix is rarely one big deletion. It is a short, careful pass through the places where space actually goes, with photos kept safe first.
In short: Check Settings > Storage first, then clear app cache, delete downloads and duplicate or large videos, and use Files by Google’s clean-up suggestions. Back up photos to Google Photos first, then use Free up space, which removes device copies only after backup. Uninstall apps no longer used. Exact names can vary by phone brand.
In this guide
- Check what is using space
- Clear app cache, not app data
- Delete downloads, duplicates, and large videos
- Use Files by Google clean-up suggestions
- Back up photos, then free up space
- Uninstall unused apps
- Quick check
Menu names on Android vary by phone brand and Android version. The names below are the ones most often seen on Pixel-style menus, and where a name differs, the closest match on the phone in hand is the right one to use. Nothing in this guide asks for a photo to be deleted before a backup is confirmed.
1. Check what is using space
Open Settings, then tap Storage. The screen shows how much space is used and how much is free, with a breakdown by category, such as apps, photos and videos, audio, and documents. On some phones the same screen sits under Settings > Storage, and on others the categories appear after tapping a storage summary. Either way, the point of the first look is the same: find the largest category before deleting anything at random.
In the example phone, videos and downloads sit near the top of the list, while photos take a large share too. That order matters. Clearing a few megabytes from a small app will not help much when a handful of long videos is doing most of the damage. Make a quick note, in plain terms, of the top two or three categories. The rest of the guide works through them in that order.
2. Clear app cache, not app data
Cache and app data sound alike, and mixing them up is the one mistake worth avoiding here. Cache is made of temporary files an app stores so it can load faster, such as images from a feed that has already been viewed. App data is different: it holds settings, sign-in details, and files saved inside the app. Clearing cache frees space and leaves the app usable. Clearing app data, sometimes labelled Clear storage, can sign the app out and remove saved material inside it.
To clear cache for one app, open Settings > Apps > See all apps, tap the app, then tap Storage & cache and Clear cache. Start with apps that are used often and store a lot of temporary material, such as a browser or a social app, and check the storage figure after each one. The app may load a little more slowly the next time it opens, while it rebuilds its cache. That is normal, and it is a small trade for space back.
Do not clear app data as a shortcut. If an app still takes far more space than expected after its cache is cleared, the cause is usually downloads, saved media, or offline material inside that app, and that material should be reviewed inside the app itself before anything is removed.
3. Delete downloads, duplicates, and large videos
Downloads are easy to forget. Files saved for a single journey, a form, or a shared document often stay on the phone long after the reason for them is gone. Open the Files app, or Files by Google where that is the file manager, and open Downloads. Sort by size where that option is shown, so the largest files appear first, and delete only files that are no longer needed. A file that might be needed again should be moved to cloud storage or a computer first, not deleted on a guess.
Videos deserve a separate pass. A short clip recorded in high quality can take far more room than dozens of photos, and duplicates creep in when the same clip is saved from a chat app as well as the camera. In the example phone, two long videos and several copies of the same clips account for a large share of the problem. Open the gallery or the file manager, sort by size or date, and check each large video before deleting it. Keep the best copy, and let the duplicates go.
One habit helps here: after deleting a video or a photo from a gallery app, check whether the app keeps a bin or trash folder. Deleted items can stay in that folder for a set period, and the space is only truly freed once the bin is emptied. The exact period and the wording of the bin vary by app, so the bin should be checked rather than assumed empty.
4. Use Files by Google clean-up suggestions
Files by Google is the file manager on many Android phones, and it also works as a clean-up helper. Open the app and tap Clean. The screen shows suggestions grouped by type, such as junk files, large files, duplicate files, and unused apps. Each suggestion can be opened and reviewed before anything is deleted, and that review step is the important part.
Work through one group at a time. Junk files are usually safe to remove, since they are temporary files left behind by apps. Large files and duplicates need a closer look, because a large file might be a video worth keeping, and a so-called duplicate might be the only copy in a different folder. Tap into the group, untick anything worth keeping, and confirm only the rest. In the example phone, the large-files group is where the longest videos show up first, which makes it a faster way to repeat step 3 with less scrolling.
If Files by Google is not on the phone, it can be installed from Google Play. The clean-up suggestions may look different on different phones, and some phones show a similar clean-up tool inside Settings or inside the phone maker’s own file manager. The principle stays the same in every case: review the list, keep what matters, and delete in small, checked batches.
5. Back up photos, then free up space
This is the step that protects the photos. Before any photo is removed from the phone, the backup must be finished, not merely switched on. Open Google Photos, tap the profile picture, and check the backup status. The backup settings sit under Photos settings > Backup on many phones, and the status should show that backup is complete and up to date. If photos are still uploading, wait until that finishes. A photo that has not finished uploading is not yet safe to remove from the phone.
Once backup is complete, Google Photos offers a Free up space option, reached from the profile picture menu in the app. Tapping it removes device copies of photos and videos that have already been backed up. The backed-up copies stay in Google Photos, while the copies stored on the phone are removed, which is what frees the space. This is the key distinction: the tool removes device copies only after backup, and it does not, on its own, delete the backed-up copies from Google Photos.
After the tool runs, open Google Photos and check that a few recent photos are still visible there, with a connection available. If a photo cannot be seen in Google Photos, do not repeat the step until the reason is clear, and check the backup status again. For the example phone, this is the step that makes the biggest difference, because photos and videos were the largest category in step 1, and none of them had to be lost to gain the space back.
6. Uninstall unused apps
Unused apps take space twice over: the app itself, and the data it stores. Open Settings > Apps > See all apps and look for apps that have not been opened in months. On many phones an app can also be uninstalled by long-pressing its icon and tapping Uninstall, or by opening App info from that menu and tapping Uninstall there. If an app is used only once or twice a year, it can be reinstalled later, so removing it now costs little.
Before uninstalling, think about what the app holds. A notes app, a chat app, or a game may hold material that is not backed up elsewhere, and uninstalling removes that app data from the phone. When in doubt, open the app first and check whether its material is backed up or exported. System apps that cannot be uninstalled can often be disabled instead, but that option should be left alone unless the app is clearly unused and the phone offers it plainly.
Quick check
- Open Settings > Storage and compare the free space with the figure noted in step 1.
- Open Google Photos and confirm that recent photos are visible there after backup.
- Open the camera and take a test photo, to confirm that the phone can save new material again.
- Open one app whose cache was cleared, to confirm that it still opens and works as expected.
- If space is still tight, repeat steps 3 and 4, since downloads and large videos are the usual repeat offenders.
Storage fills up again over time, so a short check once a month, starting with Settings > Storage, keeps the same problem from building up unnoticed. The order stays the same each time: check first, clear cache, remove downloads and large files, back up, and only then remove device copies.
Related guide
For a calmer phone once space is under control, see How to Set Up Focus Mode and App Timers on Android, which covers Focus mode and app timers. For quieter nights, see Android Bedtime Mode and Do Not Disturb for Better Sleep.