I have shared various guides to root different samsung phones in the past and for today there is good news for the users of Samsung galaxy J3 because if you will refer this post then you will be able to root your galaxy J3 easily without any pc or laptop that is root just with a simple click.
Basically every android user is keen to root his android phone so as to unlock the features of the android device and completely own the rooted android device.
Before we start with the rooting guide of samsung galaxy J3 let me introduce some of the awesome features you can try in an android phone after rooting it.

*Access to the System folder of the phone,

#Access to the Build.prop of the phone.

#Change IEMI number of the handset.

#Change Android Id of the Phone.

#Installation of Custom Roms and getting your Phone upgraded without any official update.

Before we start with the root guide of galaxy J3 lets mention some awesome features of this budgeted device released in 2015.
1.5″ inch 720p display

2.8mp 1080p rear camera

3.1.5gb ram

4.2600mah powerful battery

So Let begin with the full guide of How to root J3 device without pc/laptop

Apps which we would use to root this Smartphone:

1.KINGROOT

2.TOWELROOT

#ROOT GALAXY J3 USING KINGROOT 

1.Install Kingroot from the links given below and install it in your samsung glaxy J3

2.open the App you will see a big button on screen with your phone name and the current root status.

3.Click on the below button Try to root.

4.wait for the process to undergo 100% and the superuser to get installed.

5.done! your phone is now rooted..

#ROOT GALAXY J3 USING TOWELROOT
 1.Install towelroot from below link.

2.Install apk

Open app and click on make it rain

4.Now wait for your phone to get root and enjoy.

Done!! Your Galaxy J3 is now rooted easily without pc/laptop