Server Crasher????

is there one

there's no server crasher tools or something (i think)
but maybe you can do this method :
-Get Op
-Ban everybody
-and put TNT everywhere
-then places redstone block on the tnt (1 tnt and it'll be spreading to the other tnt)
#LOL sorry bad english

There's been many ways to crash servers over the days, just search around, try anything, if you find something abuse it... It's all about finding exploits. A good way used to be to just spam a command like /list with a client, this could sometimes take down servers but I believe they patched it on default Minecraft servers.

Edit: ENTITIES will lag servers a lot, if you can get a lot of entities to spawn at once you're golden.

if u have gm 1 then place out a rail an dig 2 blocks down under then place out like 8k minecrarts with an auto clicker

It's called ddos. I'll hook you up if you add me on skype. I got 50+ GB/s of power on my hands (In the world of hacking that is an ENORMOUS attack speed for someone to have at the click of a button) I have a nice B0TN3T :3 and 2 super strong booters, along with 2 centos6 booter vps's and one windows that I use for cracking.

Skype: johnthecoolness1

move fast and load a lot of chunks.

I have a working server crasher.
It is in my custom client I use.

Weepcraft is coming out with a crasher