ChatGPT Writer: Use AI on Any Site is an AI-powered writing assistant extension that integrates the capabilities of leading models (GPT-4o, Claude, Gemini) to help users write emails, fix grammar, translate, summarize, brainstorm, and more directly on any website. It offers a free trial, fast responses, privacy-friendly design, and advanced Gmail integration. The extension is lightweight (< 1MB) and can be launched via the extension icon, shortcut (Ctrl/Shift/K), or by selecting text. It supports multiple AI models and tones, languages, and response lengths, making it suitable for personal and professional writing tasks without switching tabs.
How to Use ChatGPT Writer
- Install the Free Extension. Add the ChatGPT Writer extension to your browser (Chrome, Edge, Brave, Opera, Vivaldi, Safari coming soon, Firefox coming soon).
- Launch and Access. Launch from the extension icon or use the keyboard shortcut Ctrl+Shift+K to activate the AI panel on any site.
- Provide Context. Input or select text to craft emails, fix grammar, translate, summarize, brainstorm, or research. Choose the AI model and tone as needed.
- Choose Model & Tone. Switch between model options (GPT-4o, Claude, Gemini, DeepSeek, Sonnet, etc.) and select tones (auto plus five manual tones) to tailor responses.
- Set Response Length. Pick short, medium, or long responses to fit your context.
- Apply Output. Use the generated content directly in emails or on the page, then copy or insert as needed.
Key Use Cases
- Write Email
- Fix Grammar
- Translation
- Improve Writing
- Summarize
- Brainstorm Ideas
- Research
- Ask Me Anything
Why Choose ChatGPT Writer
- Blazingly fast, high-quality responses powered by multiple leading AI models
- Personal AI assistant that lives on every site you visit
- Private and secure: data handling aligned with privacy-friendly practices
- Gmail-friendly integration for context-aware email replies
- Lightweight extension that won’t slow down your browser
- Flexible model switching and tone controls for precise outputs
Safety and Privacy Considerations
- Data is handled locally within the extension context; check the extension’s privacy settings for data usage details.
Core Features
- Free to Try with access to multiple AI models (GPT-4o, Claude, Gemini, DeepSeek, Sonnet, etc.)
- Write emails and messages, fix grammar, translate, summarize, brainstorm, and research
- Understands your email context to write replies tailored to conversations
- Switch AI models mid-chat to suit different needs
- Writing tones: auto plus 5 additional manual tones
- Response length control: short, medium, long
- Private and secure: data not shared with third parties (subject to extension policy)
- Gmail integration for context-aware email composition
- Launch from extension icon or via keyboard shortcut (Ctrl+Shift+K)
- Lightweight (< 1MB) extension that stays responsive across sites