Brand Voice Guide Builder
The brand
The guide
Who we are writing for (name the reader and the situation they arrive in.) Voice attributes (three attributes, each with a line on what it means in practice.) We say (phrases to reach for.) We do not say (phrases to avoid.) Example in voice (paste one paragraph written in the voice.)
Checks
No brand named; the guide is written for a specific one.
No reader named; a voice guide without an audience is a preference list.
0 attributes; three is the working range — enough to shape a sentence, few enough to remember.
No phrases to reach for; the guide only says what not to do.
No phrases to avoid; the say list alone leaves the edge cases to taste.
No sample paragraph; writers copy an example before they follow a description.
Scope and limits
The builder checks the guide's internal consistency: an attribute with no practice, a phrase on both lists, a sample that uses banned wording, and sentences a reader has to hold in one breath.
It cannot tell whether the voice suits the audience, and it cannot write the sample. A guide is judged by the copy written from it, not by the document.
The brand voice guide builder documents three voice attributes with their practice, a say and do-not-say list, and a sample paragraph checked against the guide it is supposed to demonstrate.
What is Brand Voice Guide Builder?
The brand voice guide builder writes a guide that a writer can actually use. Its unit is not the adjective but the attribute with its practice: "plain" becomes short sentences, kitchen words, no specification sheets. Three attributes is the working range, because a guide with eight is a mood board and a guide with one is a slogan. The builder asks for each attribute as a line with what it means in practice, and names any attribute that arrives without one.
The say list and the do-not-say list are where a guide becomes operational. The say list holds the constructions to reach for — the words the brand uses for its own things, the sentence shapes that come naturally. The do-not-say list holds the phrases that break the voice: jargon, borrowed prestige words, anything the brand has decided it is not. The builder checks the two lists against each other, because the same phrase on both is the quiet way a guide contradicts itself and gets ignored.
The sample paragraph is the test. Writers copy an example before they follow a description, so the guide asks for one paragraph in the voice and checks it against the guide it demonstrates. Banned phrasing in the sample is reported by name, and sentences past twenty-five words are counted — whatever the voice, a reader holds a sentence for one breath. A guide whose own sample fails its rules will not survive contact with a content calendar.
The register question sits underneath all of it. A voice is not a tone; the same voice can be formal in a contract summary and friendly in a launch note. What stays constant is the vocabulary, the sentence length and what the brand refuses to say. The builder keeps the guide to those constants rather than freezing a tone that will date.
The output is a one-page document: who the guide is written for, the three attributes with their practice, the two lists, and the checked sample. It is copyable and downloadable as plain text so it can live where writers actually work rather than in a slide deck nobody opens.
What the builder cannot do is tell whether the voice suits the audience or whether the sample is any good. It checks the guide's internal consistency and nothing more, and the page says so. A guide is judged by the copy written from it over the following year, not by the document itself.
Write the voice attributes where the work happens, then test them against real copy: a release note, an error message, a sales email. The guide is not finished until a writer can take an unfamiliar draft and say which attribute it breaks. If nothing breaks, the attributes are too broad to be useful, and the practice lines are the place to tighten them.
Version the guide and keep the changes visible. A voice shifts deliberately — a new audience, a new market, a change of leadership — and each shift deserves a dated line rather than a silent rewrite. When a writer asks why the old copy sounds different, the changes section answers before the conversation starts.
How to use Brand Voice Guide Builder
- Name the brand and the reader the voice is written for.
- Write three attributes, each with a line on what it means in practice.
- Build the say list and the do-not-say list, checking they do not overlap.
- Paste a sample paragraph and clear the banned-phrasing and length checks.
- Copy the guide where writers work; the sample is the part they will copy.
When to use Brand Voice Guide Builder vs related tools
Use the brand voice guide builder when more than one person writes for the brand and the results are drifting: a small marketing team, a founder handing copy to a freelancer, an agency onboarding a client. It is most useful with a sample paragraph to hand, because the sample is what the guide is checked against. The guide pairs with the Email Template Library for the recurring messages it governs and the Social Post Caption Builder for the channel where voice drifts fastest. When the guide has to sit inside a broader document, the About Page Builder carries the public-facing version of the same facts.
Privacy & Security
This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.