ProTone

Analyze message risk, perception, and tone before you send. Audience-aware rewrites for Gmail, Slack, LinkedIn, and more.

How will this message land? ProTone is communication intelligence for professionals. Before you hit send, it analyzes how your message might be received — not just whether the grammar is correct. Unlike grammar tools, ProTone focuses on outcomes: Will this sound accusatory? Will your manager get defensive? Will a client trust you less? ProTone tells you before the damage is done. WHAT YOU GET • Risk analysis — spot accusatory tone, passive aggression, unclear intent, and escalation risks • Perception forecast — likely reaction, trust impact, and cooperation likelihood • Audience-aware rewrites — recommended, friendly, and direct versions tailored to who you're writing to and what you want to achieve • One-click paste — apply a rewrite directly in the field WORKS WHERE YOU WRITE ProTone appears as a floating button in text fields across the web — Gmail, Slack, LinkedIn, Notion, support tickets, and any editable field. No tab switching. No copy-paste into another app. HOW IT WORKS 1. Focus a text field — the ProTone button appears 2. Choose your audience and goal (manager, client, follow-up, feedback, and more) 3. Review risk, perception, and rewrites — then send with confidence PRIVACY Messages are analyzed in real time and are not stored on our servers. We do not build a history of what you write. See our privacy policy: https://protone.work/privacy PRICING • Free — 20 analyses per month, no credit card required • Pro — $6.99 USD/month, 1,000 analyses per month Sign in to sync your plan. Upgrade anytime from the extension. Learn more: https://protone.work