Tono – AI Email Analyzer

Analyze your emails before sending with AI-powered tone and audience suggestions.

Analyze your Gmail drafts before you send. AI-powered tone feedback in 3 simple steps. DETAILED DESCRIPTION ────────────────────────────────── Tono sits inside Gmail and checks your email before you send it — so you never second-guess your tone again. HOW IT WORKS 1. Write your email in Gmail as normal 2. Click the "✦ Tono" button in the compose toolbar 3. Pick who you're writing to (colleague, client, manager, friend...) 4. Pick the tone you want (professional, concise, empathetic...) 5. Get instant AI feedback — score, issues, suggestions, and a rewrite That's it. Three steps, under 30 seconds. WHAT YOU GET ✓ Tone score out of 10 — see at a glance how well your email hits the mark ✓ Specific issues — not vague feedback, actual problems a colleague would flag ✓ Actionable suggestions — concrete fixes, not generic advice ✓ Suggested rewrite — a cleaner version of your email, written to sound like a real person (not a press release) SOUNDS HUMAN, NOT AI Most AI writing tools produce emails that sound like they were written by a robot. Tono is trained to give feedback that sounds like a trusted senior colleague giving honest advice over coffee. No filler phrases, no corporate fluff, no "I hope this email finds you well." YOUR CHOICE OF AI Tono works with the AI you already use: • Claude (Anthropic) — nuanced, natural writing • ChatGPT (OpenAI) — fast and widely available • Gemini (Google) — free tier available Bring your own API key — your emails stay private and go directly to the AI provider of your choice. Tono never stores or transmits your email content. PERFECT FOR • Sales and client-facing professionals • Anyone writing to executives or senior stakeholders • Non-native English speakers wanting a confidence check • Teams in regulated industries (pharma, finance, legal) where tone matters PRIVACY Tono does not store your emails. Your API key is saved locally in your browser only. Email content is sent directly from your browser to your chosen AI provider — Tono's servers are never involved.