Is there a way to "turn off" creepers in minecraft? [duplicate]
Solution 1:
You could always play on Peaceful, which removes all hostile mobs from the game.
To remove just creepers, however, would require a mod of one kind or another.
Some of the links provided in the comments should help you out if that's your case. But if you just want to remove the 'hostile mobs' problem entirely, playing on peaceful is the easiest way to solve this.