Brand Voice Builder

Define, visualize, test, and export a reusable brand voice guide from your browser.

Brand Voice Builder helps creators, founders, marketers, and small teams turn an abstract brand voice into a practical writing profile. Use six interactive voice dimensions to define how your brand should sound, then see the profile as a live radar chart. Save preferred keywords, list words to avoid, build a small color palette, and choose a type preview that fits the brand. Paste copy into the analyzer to get a voice match score with concrete issues and suggestions. Generate alternate versions of existing copy, or create quick starters for common scenarios like welcome messages, product launches, apologies, calls to action, bios, newsletters, social posts, and review requests. Everything runs locally in Chrome. The extension stores your profile on your device with Chrome storage and does not send your brand data to external servers. Key features Six-axis brand voice profile: casual/formal, serious/playful, technical/accessible, reserved/enthusiastic, corporate/personal, and minimal/expressive. Live radar visualization and plain-language writing rules. Copy analyzer with score, issues, suggestions, keyword checks, and avoid-word detection. Scenario copy generator for eight common brand communication moments. Variation generator for polishing, shortening, keyword-forward copy, and question hooks. Brand keywords, avoid words, colors, font preview, JSON import, JSON export, and reset controls. Dark and light themes. Local-only storage with no external network requests.