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 an executioner.

(T.102): If this is your 2nd (or higher) roll on this table, you either were raised by one parent or only one parent worked, AND you are an only child. Proceed to Table 3.

(T.3): You eloped. Scandalous! Roll on Table 12 to see how this worked out.

(T.12): The person is a villain. Roll on Table 5 to see what kind of villain, then roll on Table 9 to move against them.

    >>>> (T.5): Goblin(s).

Choose one...
(T.9): You are thoroughly defeated, but you escape. You started adventuring at this point.
(T.9): You are thoroughly defeated, but you escape, swearing vengeance (again?). You can re-roll on this table to try at least one more time.

(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): A dragon.

Total Rolls: 9
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.