Open Settings
Tap Storage or Device care
Tap Apps
Select the app you want
Tap Storage
Tap Clear cache
Repeat for other apps if needed
To clear browser cache, open the browser settings
Tap Privacy or History
Tap Clear browsing data
Select Cached images and files
Tap Clear data
To clear system cache, restart the phone if available
If needed, use Recovery Mode and select Wipe cache partition
Back up important data before clearing system cache