This tool is based on the work of user Arachobia on RPG Crossing with his permission. He had taken a list of tables from Dragon magazine #422 in an article called "Building Character" by Matt Sernett and updated them for 5th edition. I've turned them into an automatic tool for generating a characters background.

Instructions: Refresh the page to generate a new background story. As always, you can use it however you like and fill in your own details. Your age and acquired proficiencies are listed at the bottom and are based on the results you got. Try to pick a Race/Class/Background combo that fulfills all the proficiencies. Your age may also result in ability score modifiers that can be applied after building your character.

...or ignore everything and do whatever you want. Whatever.
Background Generator

(T.101): One of your parents was a healer. You will have proficiency in Medicine.

(T.102): One of your parents was a scholar and teacher. You will have proficiency in History.

(T.2): An older sister and a stepbrother.

(T.3): You were apprenticed or sent to be trained. Roll on Table 4 to determine who by or what as.

(T.4): Being a merchant's assistant may not be that exciting, but it is lucrative. Add 10% to your starting gold! Then roll on Table 6.

Choose one...
(T.6): You are a master merchant. You will have 10% more starting gold and proficiency in Persuasion. However, it may have been better to keep your head down: a villain sets out to ruin your business. Roll on table 5 for the villain. You have started adventuring after being ruined.
(T.6): You are a master merchant. You will have 10% more starting gold and proficiency in Persuasion. However, it may have been better to keep your head down: a villain sets out to ruin your business. Roll on table 5 for the villain. You have already sought out vengeance on Table 9.

    >>>> (T.5): A fey creature.

(T.9): You are tricked, and become lost underground. Roll on Table 25.

(T.25): You discover the lair of a villain beneath the earth: roll on Table 5 to see which villain. You steal a map to treasure from the villain's lair and sneak back to the surface using their own tunnels. You will have proficiency in Stealth. You begin your life of adventure with the map in your possession.

    >>>> (T.5): The leader of a criminal organization.


Total Rolls: 10
Your age is ADULT
Adults are at the most equalized stage of development. From here their physical body will begin to weaken while their minds and personalities benefit from experience.
Adults have no modifiers to their attributes.

Proficiencies:
Medicine
History
10% More Starting Gold
Persuasion
Stealth