This tool allows you to create partitions and administer them in your sdcard or usb device.
You can add more RAM to your device by creating a swap partition.
Also you can repair some damaged sdcard and scan for bad blocks.
Working in all Android versions since 2.3 to 5.x
Aparted is a software for advanced users that know what are doing, please don´t use this application if you are not an advanced user.
The developer is not responsible of any damage to your sdcard so use it at your own risk.
Easy to navigate and understand, it took a while but it was worth it. Definitely helped to get that extra space!