AI-powered email replies in seconds—right inside Gmail.
Learn your style. Match your tone. Save hours every week.
✓ No credit card required • ✓ Start free. Upgrade when ready.
Trusted by 1,000+ professionals • ⭐⭐⭐⭐⭐ 4.9/5 on Chrome Web Store
Responses in seconds
No more waiting. Generate professional emails instantly—faster than any other AI tool.
Sounds Like You
The more you use it, the better it gets. INBOXTONIC learns your writing patterns and matches your voice perfectly.
Every Situation Covered
From casual to corporate, apologetic to assertive—we have the right tone for every email.
The more you use INBOXTONIC, the smarter it gets. Our AI analyzes your writing patterns, vocabulary, and style to generate emails that match your unique voice—so perfectly, even you won't tell the difference.
Analyzes sentence structure, word choice, and phrasing from your previous emails to replicate your authentic style.
Automatically adjusts formality based on who you're emailing—casual with colleagues, professional with clients.
Identifies and uses your go-to expressions like "Looking forward to..." or "Let me know if..." to maintain authenticity.
Most AI tools hide which model they use. Not us. INBOXTONIC gives you full transparency and choice—access to 5+ cutting-edge AI models, each optimized for different writing styles. Or let Smart Routing pick the perfect one automatically.
Know exactly which AI model is writing your emails. No black boxes, no hidden algorithms. Just honest, clear technology.
We only include models that respond in under 3 seconds. No waiting, no loading screens—just instant results.
Can't decide which model to use? Smart Routing analyzes your email context, recipient, and intent—then picks the best model automatically.
Everything you need to write better emails, faster - without leaving your inbox
Can't decide which AI model or tone to use? Smart Route analyzes your email context and automatically picks the perfect combination every time.
No switching tabs or copy-pasting. INBOXTONIC integrates seamlessly into your Gmail interface - just click and generate.
Casual, professional, friendly, assertive, empathetic, persuasive - every tone you need for any email situation. Smart Route picks automatically, or you choose manually.
Access Gemini, Grok, Claude, GPT, and DeepSeek - all in one place. We test every new model and add the best ones, so you are always using the latest technology.
Understands the full email thread, your relationship with the recipient, and sentiment - to craft responses that make sense in context.
Your emails are never stored or logged. All processing happens in real-time and is immediately discarded. GDPR compliant and built with privacy at the core.
Stop wasting time on email. Watch how INBOXTONIC helps busy professionals save 2+ hours every day.
Start free. Upgrade when you're ready.
• Cancel anytime • Money-back guarantee • No credit card required to start
Everything you need to know about INBOXTONIC. Can't find the answer you're looking for? Reach out to our support team.
Contact SupportINBOXTONIC is built specifically for email - it understands context, learns your writing style, and generates responses in 2 seconds. ChatGPT requires copying/pasting, lacks context awareness, and is slower. We also work directly inside Gmail, so there's no switching between tabs.
Not at all. INBOXTONIC learns your unique writing style and matches your tone, phrasing, and vocabulary. The output sounds like you wrote it - because the AI is trained on how YOU write.
Absolutely not. Your privacy is our top priority. INBOXTONIC processes emails locally in your browser and only sends the specific context you choose to our AI for generation. We never store, read, or access your email content. Your data stays yours - we're just the tool that helps you write faster.
Free users get 20/month. If you run out, you can upgrade to Plus (200/month) or Pro (500/month) anytime. You can also earn bonus credits through our referral program - 500 credits per paid referral.
Currently we support Gmail via Chrome extension. Outlook support is coming soon (Pro plan users get early access). We're also planning Slack, LinkedIn, and other platforms in 2025.
Click "Retry" to generate a new version with the same or updated instructions, or edit the output directly before sending. You have full control - INBOXTONIC is a tool, not a replacement for your judgment.