Is your microSD card not enough? Here are some quick ways to reclaim storage space.
It doesn't matter if your Android phone has expandable storage via a microSD card - fill whatever space they give you, be it 32GB or 200GB. Here are some simple ways to free up storage space on your Android device, both the internal storage and the microSD.

1. Clear the cache
Many Android apps use stored or cached data to give you a better user experience. Cached data can save a bit of time (and mobile data), but app cached files are for convenience and are not strictly necessary. If you need to free up space on your phone quickly, the app cache is the first place to look.
To clear cached data from a single app, go to Settings > Applications > Application Manager and tap on the app you want to modify. In the app's Application info menu, tap Storage and then tap Clear Cache to clear the app's cache. 
To clear cached data from all apps, go to Settings > Storage and tap Cached data to clear the caches of all the apps on your phone.

2. Delete your downloads
Your Android phone has a Downloads folder where everything you download (photos, videos, documents, and other files) is stored. Most likely, most of the files in your Downloads folder are not files you are particularly attached to. So you should be able to free up some storage space by deleting these unnecessary files.

3. Take advantage of Google Photos
Google Photos allows you to backup an unlimited number of photos. In other words, you can back up every photo you take with your Android phone directly to Google Photos, and it won't count on your Google Drive space. Once your photos have been backed up, you can delete them from your device to free up space.

You will need to turn on Google Photos' Back up & sync feature to take advantage of all this free cloud storage space. To do this, open the Google Photos app and go to Settings > Back up & sync and turn it on.
Once you've backed up your photos using Google Photos, you can go to Settings > Free up device storage, and Google Photos will delete any photos and videos that have been backed up.

4. Move apps to the microSD card
Apps are likely to take up most of your phone's storage space. If you have an Android phone that allows you to add a microSD card for additional storage, you may be able to move some of your storage-absorbing apps to that microSD card.
To do this, open Settings and go to Applications > Application manager and tap the app you want to move.
If the app can be moved, you will see a button that says Move to SD card -- tap this button to move the app to the microSD card. (On some phones, you may have to tap Storage to find this option.) Only part of the app will be moved to the microSD card. How much of the app will be moved depends on the app and, unfortunately, many large games will not move a significant portion of their data to the microSD card.

5. Move apps to trash
If you've tried all these tips and still need more space, there's no getting around it - you'll have to start removing a few things. You probably have some (maybe several) apps on your device that you never use.

To find out which apps are taking up the most space, open Settings and go to Storage > Apps. You'll see a list of apps sorted by size -- the biggest apps will the at the top of the list.
To delete an app you don't use, tap the app and then tap the "i" icon next to the app's name.
Tap uninstall to get rid of the app.

A small bonus
To clean your android use Google files (download) app it will also manage your files and used to transform files to other devices 

Free up space with cleaning recommendations
Find files faster with search and simple browsing
Share files offline with others, fast and without data
Back up files to the cloud to save you space on device


Use this trick and clean up your android device


An article by Munna Suprathik