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): If this is your 1st roll on this table you were adopted. Roll on this table another maximum of two times* as if it is your first and 2nd roll, for your biological parents, then again maximum of 2 times* (again as if it is your 1st and 2nd roll). After this, you may move on to Table 2.
Biological Parents:

    >>>> (T.101): One of your parents was an undertaker.

    >>>> (T.102): One of your parents was a diplomat. You will have proficiency in Persuasion.
Adoptive Parents:

    >>>> (T.101): If this is your 1st roll on this table you were raised by animals or beasts. They can either be unintelligent creatures like wolves, or a sentient animal like a unicorn. You will have proficiency in Animal Handling. Continue on to Table 2 and it is up to you whether any siblings you have were your biological siblings, or your animal-parents own young, or a mixture.

    >>>> (T.102): One of your parents was a great hero.

(T.2): An identical twin.

(T.3): You left to search for a missing or distant sibling. If you thought you were an only child, turns out you were wrong and you learn of a half-sibling to seek out. Roll on Table 11.

(T.11): You discover you need more information to find what you seek. You will have proficiency in Investigation. Roll on this table again, but regardless of what you were searching for originally, you now are seeking information.

(T.11): Good idea: Plying folk with drinks to try find information. Bad idea: Drinking so much yourself that you start a brawl in the tavern. Stagger on over to Table 23.

(T.23): You save the tavern owner's life and send the brawling patrons fleeing for their lives. The owner gratefully rewards you with partial ownership of the tavern. You will have +10% starting gold and proficiency in Athletics. Your life of adventure begins.


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:
Persuasion
Animal Handling
Investigation
10% More Starting Gold
Athletics