How to free up phone storage when the system takes up almost all the space?

If the system itself is eating up a huge amount of space, it's often because of a bunch of unnecessary languages in the keyboard, fonts, and other localization files! Delete everything you don't need in settings - it frees up way more space than you'd expect. Just keep in mind that after cleanup some apps might act up if you delete critical files, so don't go nuclear and delete everything at once. Check things as you go.

Actually, you need to be careful with cache - yes, it frees up space, but some apps will run slower afterward until they rebuild it. It makes sense to clear cache selectively, especially for programs you use often and that take up a ton of space. Check in settings what each app weighs - sometimes there are real memory hogs that accumulate unnecessary files in the megabytes.

As for system files - yeah, unnecessary languages and fonts do take up space, and it really helps. But the thing people often miss - it's the built-in apps that can't be deleted the standard way. On Android you can disable preinstalled programs through developer settings or use special apps to remove them. On iPhone it's usually harder, but if it's really critical - there are workarounds through a computer.

Main rule: back everything up before you start experimenting. And don't forget about cloud storage - it's not just photos that sit there, but contacts, messages, notes too. Move archive files and old downloads there as well, and that often frees up way more space than you'd think.

Try deleting unnecessary app updates through storage settings - the system often keeps old program versions that take up a decent amount of space and nobody remembers they're there. On Android this usually works better than clearing the cache, because it recovers quickly and frees up space right away.

The main thing is don't go straight into system files or delete stuff that seems unnecessary if you're not sure what it's for. You can easily mess up your phone. Better to first check what's actually taking up space: most phones have a "Storage" section in settings where you can see how memory is distributed across categories. Sometimes the system takes up a lot of space because of broken updates or temporary files that you can safely clean up.

Here's what a lot of people forget to do: check your Downloads folder on your phone - installation files, app updates, documents that people downloaded months ago and forgot about tend to pile up there. You can delete almost everything in there, and if you need any files later you can just download them again. This usually frees up surprisingly much space without hurting your system.

One more tip: if you're on Android, turn off automatic backup saving for apps, which stacks up in the system cloud but also takes up local space as cache. It runs in the background and hardly anyone needs it. A combination of cleaning out your Downloads folder, disabling unnecessary backups, and deleting apps that are truly dead often solves the problem better than just clearing the cache.

What people wrote above actually works, but often folks forget about the simplest things - checking whether gigabytes have piled up in your downloads folder or in a duplicate photos gallery. My friend recently freed up almost five gigabytes just by deleting screenshots and random photos that had been accumulating for months. Sometimes the phone counts this as "other," and it seems like the system is eating up everything, but really it's just media files scattered all over the place.

Another tip - go into storage settings and see which apps are actually taking up the most space. Sometimes it's some social network or messenger that's hoarding video and image cache. Deleting the cache for that specific app is way safer than clearing everything willy-nilly like some of the other answers suggest. After that, you can usually tell whether you've actually got a system storage problem or if the issue was just the apps.