There are a number of Chest keys in The Witcher 3:
Chest key found on a small island north of Sund[]
| Chest key | |
|---|---|
 Item needed to complete a quest | |
| Description | |
Inventory/slot |
Quest items / Keys |
Category |
Common item |
Type |
Key |
Source |
Body on a small island north of Sund, near where Birna Bran is chained to a rock |
Base price |
1 
|
Price to buy |
1
|
Price to sell |
1
|
Weight |
0.01 
|
This key opens a chest on a rocky islet near the body where it is found. The chest contains a sword, a crafting diagram, an alchemical formula (if it has not already been found or purchased), some and a few crafting components.
Associated quests[]
Chest key found on Faroe[]
| Chest key | |
|---|---|
 Item needed to complete a quest | |
| Description | |
Inventory/slot |
Quest items / Keys |
Category |
Common item |
Type |
Other |
Source |
Body of one of Timmon's brothers at the eastern tip of Faroe |
Base price |
2
|
Price to buy |
2
|
Price to sell |
1
|
Weight |
0.01
|
This key is found along with a letter.
Associated quests[]
Chest key found by the Vikk Watchtower[]
| Chest key | |
|---|---|
 Item needed to complete a quest | |
| Description | |
Inventory/slot |
Quest items / Keys |
Category |
Common item |
Type |
Other |
Expansion |
Hearts of Stone |
Source |
Body of Nicolas Vogel |
Base price |
1
|
Price to buy |
1
|
Price to sell |
1
|
Weight |
0.01
|
This key is found along with a notebook. It unlocks a chest at the top of the tower.