Demon Generator

Type a name, press generate, and you get a short description of that person's demon. A result reads like this: "Ben's demon is a cunning creature. They are tall, with green skin and spots. They have bald hair, thorns, and crystals growing out of them. They wear a crown and are known for being explosive." The tool picks one of 200 pre-written descriptions and drops your name into it, so the demon is presented as belonging to whoever you typed, which is why people use it for OCs, for friends, and for "what would my demon look like" posts.

What goes into a description

Every description has the same four sentences, and each slot is filled from a small fixed vocabulary. That makes the output predictable in shape but varied in detail:

• Temperament: cunning, boisterous, shy, cheerful, gentle, mysterious or melancholic.
• Build and skin: short, tall or average height, with white, black, grey, green, blue or red skin, and either no markings, stripes, spots, freckles or intricate patterns.
• Hair and body features: spiky, long, bald, wavy, curly or short hair, plus one unusual feature (thorns, wings, many arms, a single horn or multiple eyes) and something growing out of them (crystals, mushrooms, flowers or ivy).
• Outfit and reputation: they wear armor, jewelry, sunglasses, simple clothing or a crown, and are known for being powerful, quick, graceful, careful, explosive or clumsy.

The demons here are closer to companion spirits or familiars than to horror-movie fiends. There is no gore, no religious framing and nothing that would be out of place in a middle-grade fantasy. If you want something menacing, the Random Monster Generator is the darker option.

What you can set

One text box, for the name. It is required, and whatever you type is used exactly as written, so "Ben" gives "Ben's demon" and "the class of 2026" gives "the class of 2026's demon". Each press returns a single description chosen at random from the 200, and the name is the only thing that changes between users. Press again to reroll; the previous result is replaced rather than stacked.

Ways people use it

• Demon OC design. Artists generate a description for an existing character's name and draw the result, treating the four sentences as a commission brief.
• Group games and social posts. Run every friend's name through it and compare demons. The fixed vocabulary makes results easy to compare: who got wings, who got a crown, who is clumsy.
• Familiars and companions for tabletop games. A GM who needs a bound spirit for a warlock rolls one and keeps the temperament and reputation lines as roleplay hooks.
• Writing warm-ups. Generate a demon for a character and write the scene where they first meet it.

Turning the description into a full character

The template gives you appearance and temperament but no motive, so add three things. First, decide why the demon is attached to this person: a bargain, an inheritance, a curse, a friendship. Second, pick one of the given traits and make it matter; a demon that is "known for being careful" with "crystals growing out of them" suggests something fragile and valuable about its body. Third, give it a name of its own, since the tool refers to it only as the owner's demon. Traditional demon naming leans on hard consonants and Semitic or Latin endings (Asmodeus, Belial, Malphas), but a familiar-style demon can carry a plain or even sweet name for contrast. If the design keeps drifting toward beast rather than spirit, the Random Animal Hybrid Generator and Random Mythical Creature Generator are good places to borrow a body plan. More creature tools are listed under all animal and nature generators.