ToneCheck — Email Tone Analyser

Check your email tone before you hit send. Paste any email into the popup and get instant feedback.

Ever sent an email that landed completely wrong? What felt direct and professional to you read as cold, aggressive, or passive-aggressive to the recipient. ToneCheck fixes that — paste your email draft and find out exactly how it reads before you hit send. HOW IT WORKS 1. Click the ToneCheck icon in your Chrome toolbar 2. Paste your email draft 3. Get instant AI-powered feedback in about 10 seconds WHAT YOU GET ✅ Tone dial — see where your email lands from Harsh to Warm ✅ Tone label — Aggressive, Passive-Aggressive, Warm & Professional, Too Casual, and more ✅ Specific phrases flagged with suggested rewrites ✅ Full rewrite — a complete improved version ready to copy ✅ Subject line suggestions when relevant WORKS WITH ANY EMAIL ToneCheck works alongside Gmail, Outlook, or any email client — just paste your draft into the popup. PRICING 3 free checks per day — no sign up needed. Upgrade to Pro for $4/month for unlimited checks. PRIVACY Your emails are never stored or shared. Each analysis is processed and immediately discarded.