A Tool is an item that players can use in Castle Crashers to perform a multitude of actions. These include opening doors, finding items, breaking through objects, or healing the player.
The usable tools featured within the game are:
| Image | Name | Sold in Stores? | Location | Maximum Amount | Description | |
|---|---|---|---|---|---|---|
 |
Health Potion | Yes | Any Store (except Insane Store) And Wizard Castle Interior (Insane mode) | 5 | Fully restores a player's health. | |
 |
Boomerang | No | Thieves' Forest | 1 | Breaks through barriers, stuns enemies, Picks up certain items and deals small amounts of damage to non-flinching enemies. Can also be used for XP glitching. | |
 |
Bomb | Yes | Thieves' Store, Volcano Store, Swamp Village Store | 9 | Damages enemies and opens hidden areas. | |
 |
Sandwich | Yes | Lava World, Volcano Store, Snow Store | 9 | Players can deal increased melee damage and can move specific heavy objects. | |
 |
Shovel | No | Desert | 1 | Allows characters to dig up buried items hidden within a level. | |
 |
Horn | No | Corn Boss (Level) | 1 | Can activate secret areas and events. Can also deal small to moderate damage to nearby enemies, also knocking them down. | |
 |
Bow and Arrow | No | Barbarian War/Thief | 1 | Can shoot enemies/ players from a distance, and becomes more efficient the more agility the player has. |