How do i make the player unequip a tool through a script?

you can use the humanoid:UnequipTools() function, demonstrated in the code below:

local Players = game:GetService("Players") -- gets the player service
local ContextActionService = game:GetService("ContextActionService") -- gets the cas service

local localPlayer = Players.LocalPlayer -- gets the local player

ContextActionService:BindAction("unequipTools",  -- binds action to a function
    function(_, userInputState)
        if userInputState == Enum.UserInputState.Begin then 
            if localPlayer.Character then -- checks if the player has a character
                local humanoid = localPlayer.Character:FindFirstChildOfClass("Humanoid") -- checks if the player has a humanoid
                if humanoid then  -- checks if the player has a humanoid
                    humanoid:UnequipTools() -- unequips any equipped tool
                end
            end
        end
    end,
    false, 
    Enum.KeyCode.U -- sets the keybind, in this example U, when a player presses the U key, any equipped tool will be unequipped.
)

• avenze

plr = game.Players.LocalPlayer
backpack = plr.Backpack -- player's backpack
tooleq = plr.Character:FindFirstChild("Tool")
tooluneq = backpack:FindFirstChild("Tool")

if tooluneq then return end
if tooleq then
    tooleq.Parent = backpack
end
--im bad at english btw

just change da parent of da tool, when it's equip it will move to character and when it's unequip it will move to player's backpack