# Brand voice generator
Stop describing your brand voice. Start measuring it.
"Bold, friendly, authentic" describes nothing. It's not enforceable, it's not repeatable, and no two writers (or AI models) will interpret it the same way twice.
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The adjective problem
Here's the thing about most brand voice tools: you answer three questions, they generate a paragraph full of words like "confident" and "approachable", and then what? You paste that paragraph into a prompt and hope. Nobody can check whether a piece of copy actually matches "confident but warm". There's no measurement, so there's no enforcement. Fair enough as a vibe exercise. Useless as a working standard.
ScriptGrain does the opposite. We don't ask you to describe your voice. We measure it, from writing you've already published.
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How it works
1. Upload real samples
Your blog posts, emails, product copy, whatever's already in your voice. No forms, no adjective quizzes.
2. Two-pass stylometric analysis
We run your writing through a two-pass process that measures 45 attributes across lexical choices, sentence structure, tone, rhetorical patterns, punctuation habits, function words, and the quirks that are genuinely yours (that semicolon habit, the way you open paragraphs, your contraction rate).
3. A profile, not a paragraph
You get 45 measured attributes plus a narrative summary explaining what they mean and why they matter. Editable. Specific. Yours.
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What you actually get
Editable attribute cards
Every measured attribute sits on its own card. Disagree with one? Adjust it. This is your voice, not our guess at it.
A portable tone-of-voice prompt
Export the whole profile as a ready-made prompt for Claude, ChatGPT, or Notion. Take it anywhere you already write.
Content generated in your actual voice
Not "in a professional tone." In your measured, specific, repeatable voice.
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Who this is for
Marketers writing at volume who need consistency across five people and one voice. Founders who are the brand voice and need it to survive delegation. Agencies managing multiple client voices without them all sounding the same by Tuesday.
If you've ever read AI output and thought "technically fine, sounds like nobody", this is for you.
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See your brand voice measured, free
One profile. One full analysis. No card required.
To be fair, measuring it is the easy part; the real value is generating in it. That's the paid bit: plans start at £12/month for one profile (Writer), up to £299 for unlimited profiles and ten team seats (Agency). Operator and Studio sit in between, for three profiles or ten.
Start free. Upgrade when you're ready to write in it, not just look at it.
ScriptGrain · Why ScriptGrain · Sample voice profiles · The Journal · Support