Voice & tone generator
Find your brand voice, and leave with a style guide your AI actually follows.
Answer about two dozen questions and get a markdown file — archetype, tone dimensions, writing rules, and worked examples — that you paste into CLAUDE.md, a system prompt, .cursorrules, or a custom GPT. From there, every draft starts on voice instead of being edited onto it.
The problem
AI writes competent copy that sounds like nobody.
Ask a model to write in your voice and it will agree, then hand back prose that is clean, correct, and interchangeable with every other company in your category. The model is not the problem. The brief is. “Be friendly, be professional, be approachable” gives it nothing to push against — those are adjectives almost every brand would claim, so they rule nothing out.
What changes the output is specificity: rules the model can check itself against, phrasings you would never use, a worked example of the same sentence written right and written wrong. Constraints do the work that adjectives cannot. That is the document this produces.
How it works
Three steps, about five minutes
Answer the questions
About two dozen, branching on what you have already said. Some ask you to describe the brand directly. Others put two real pieces of copy side by side and ask which one sounds like you — recognizing your voice is far easier than describing it, and the answers are more honest.
See your archetype and tone profile
Your answers resolve to a primary brand archetype, a secondary undertone, and a position on each of four tone dimensions. You confirm or adjust that profile before a single line of the document is written.
Paste it into your tools
Copy the generated markdown into CLAUDE.md, a system prompt, .cursorrules, or a custom GPT. The next thing the model writes is held to your rules instead of the internet average.
Sample output
What comes out the other end
Write as Northgate: Sage voice with Caregiver undertones.
Tone — Humor: Warm, not jokey | Formality: Relaxed and human | Reverence: Respectful by default | Enthusiasm: Interested, not breathless.
Rules:
- Lead with the evidence, then the conclusion — never the reverse.
- Define any specialist term the first time it appears, in the same sentence, in under ten words.
- Address the reader as "you". Never "the user", "customers", "folks", or the third person.
- Commit to the sentence. Delete the qualifiers that let it avoid saying anything.
Never: overstated conclusions, undefined jargon, and confidence that outruns the evidence.This is the compressed version — the quick-reference block that sits at the top of the document, sized to drop straight into a system prompt. The full document includes the four tone dimensions with guidance for each, we-say/we-never-say tables, and worked examples.
What you get
One file, six parts
Written to be read by a model and used by a person.
A voice summary
One paragraph naming what your brand sounds like — written to be acted on by a model, not admired by a committee.
Your brand archetype
A primary archetype plus an undertone. A Sage that also caregives reads nothing like a Sage that rules, and the pairing is what keeps the voice from going generic.
Four tone dimensions
Funny to serious, casual to formal, irreverent to respectful, enthusiastic to matter-of-fact. Each one lands as a position with written guidance, not a label on a slider.
Core writing rules
Six to ten rules stated as constraints a model can follow and an editor can check: what to lead with, how to handle jargon, what to call the reader.
We say / we never say
A two-column table of the words and constructions that belong to you and the ones that do not. The "never" column does more work than the "always" column.
A paste-ready quick reference
A compressed block at the top of the document, small enough to sit in a system prompt without eating your context budget.
The four tone dimensions — funny to serious, casual to formal, irreverent to respectful, enthusiastic to matter-of-fact — come from Nielsen Norman Group’s tone-of-voice research, which remains the most tested framework in the field. Everything else here is built on top of it.
Archetypes
Twelve places a brand can stand
Voice work usually stalls on a blank page. An archetype gives you a starting position with a century of shorthand behind it, so your effort goes into adjusting rather than inventing.
FAQ
Questions people ask
Stop describing your voice. Write it down.
About five minutes, free, no account. You leave with a file you can paste anywhere.