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 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.2): A younger brother.

(T.3): Your family is ruined and blacklisted by the machinations of a rival. You have to take to a life of crime to survive, or become a political criminal due to the circumstances. Roll on Table 15 to see what your crime was. Then continue with a roll on Table 26.

    >>>> (T.15): Body-snatching (grave-robbing).

(T.26): You do some minor jobs for the group, but the authorities know it’s you. They can't prove it, so they decide to just make you 'disappear' and dump you in the wilds. Roll on Table 24 to see how you fare.

(T.24): You take shelter in a cave that turns out to be the den of a pair of owlbears. When they return from their hunt, you are forced to flee deeper to Table 25.

(T.25): You survive your time beneath the earth well and become adept at exploration. You will have proficiency in Stealth and Survival. Roll on Table 8 to see where you eventually emerge.

(T.8): A friend's home. They are conspicuous by there absence. You begin searching for them 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 can't remember if it was the ale or the chair to the back of the skull, but you woke up on the tavern floor with some rather unimpressed guardsman looking down on you. Enjoy your cell on Table 21.

(T.21): You serve out your term in prison until you are freed. You start with 10% less starting gold. Roll on Table 31 with a -5 modifier to the roll to see the effects of this imprisonment. Then seek out a friend or family after your release on Table 11.

    >>>> (T.31): You pull through easily enough. You will have proficiency in Survival.

(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): Your clumsiness, be it alcohol induced or not, results in the inn going up in flames. Flee the repercussions of accidental arson on Table 19.

(T.19): You evade your pursuers for now, but you know they are never going to be far behind and you must remain alert. You will have proficiency in Perception. Your life of adventure begins.


Total Rolls: 16
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:
Animal Handling
Stealth
Survival
Investigation
10% Less Starting Gold
Perception