Demonstration Brand: Mailchimp

Brand Voice Guardian

How to use
What this can do
  • Score copy against a brand's tone of voice guidelines
  • Flag specific words or phrases that feel off-brand
  • Check if copy fits the channel it's written for
  • Rewrite your copy in any output format you choose
  • Remember your house rules between sessions
What it can't do
  • Replace your judgment — you know the context, it doesn't
  • Check factual accuracy, pricing, or product claims
  • Evaluate design, visuals, or overall campaign strategy
  • Approve copy for publishing — that's still a human call
  • Apply corrections beyond what you've saved as house rules
How it works: Select your input channel, paste your copy, choose an output format for the rewrite, enter your API key, and hit Analyze. You'll get a brand voice score, specific feedback, and a rewrite tailored to whichever format you need. Treat it as a starting point — your instincts matter more than the number.
Evaluate copy
What are you evaluating?
Written content
Blog posts
Social & video
Paste your copy
Your house rules Saved
+ Add
✓ Saved to your browser
Rewrite this copy as a...
Written formats
Social & video
Anthropic API Key (never stored)
/ 100
Observations
Suggested rewrite AI GENERATED

This tool was built as a portfolio demo using Mailchimp's publicly available Content Style Guide, published under a Creative Commons Attribution-NonCommercial 4.0 International License. Source material including voice guidelines, grammar rules, and the word list can be found at styleguide.mailchimp.com. This tool is not affiliated with or endorsed by Mailchimp. It is not for commercial use or sale.