When you spawn, you are chained to spawnpoint and will only be able to move a generous 100 blocks. You will need to find and forge iron ingots to extend the chain by holding an iron ingot in hand and right clicking. One ingot per one block extension. This is the only way you will be able to explore further. Works in multiplayer as well.
Needs to be installed both on client and server.
The Spawn Tethered Team
