With this mod you can toggle if creepers explode and if they do block damage(if you didn't put creeper explosions off)
You can do this by using commands.
/gamerule docreeperexplosion true
/gamerule docreeperexplosion false
/gamerule docreeperblockdamage true
/gamerule docreeperblockdamage false
(You can also prevent creepers from doing block damage by using the "gamerule mobGriefing" command in Vanilla, but this will disable every kind of mobgriefing, which you often don't want, especially when you have farms that need mobgriefing. That's why this mod was made.)