You, your lawyer, or your agent, may ask the court in the county that you live to keep your will for safekeeping.  There is a cost for this service and that amount can be found on the Filing Fees and Court Costs Schedule.

A will you have deposited with the court is kept confidential during your lifetime and can only be delivered to you or to a person whom you have given written authorization.  The Authorization to Withdraw Will form can be filed for this purpose. If you have a guardian or a conservator, they may be allowed to examine the will you have deposited, but it will be resealed and left on deposit at the court after it has been examined. 

When the court is given notice of your death, the court shall notify any person designated to receive the will, and deliver it to them on their request; or the court may deliver the will to some other appropriate court.

See Neb. Rev. Stat. § 30-2355.