ChatGPT Writer
AI writing assistant browser extension for emails, grammar, translation, and chat.
Pricing
About ChatGPT Writer
Jetwriter AI is a personalized AI writing assistant available as a lightweight browser extension and web application. It helps users write emails and messages, fix grammar, improve writing quality, translate content, and chat with web pages across Gmail, Slack, LinkedIn, Outlook, WhatsApp Web, and other popular platforms. The tool learns from users' past emails and writing patterns to deliver personalized responses that match their voice and style, automatically drafting replies within Gmail and other services. The platform is powered by leading AI models including GPT-5, Claude Opus & Sonnet, and Gemini Pro. It supports multiple languages, offers voice input for hands-free prompting, and allows users to chat with files in any format. A key distinction is its deep integration with popular websites and the ability to select text anywhere and instantly transform it—translating, summarizing, or improving it with one click. One limitation is that the tool requires browser extension installation for full functionality, though a web app version provides fallback access.
At a glance
- Company
- Jetwriter AI
- Platforms
- Web, Chrome Extension, Edge Extension, Brave Extension, Opera Extension, Vivaldi Extension, Safari Extension (coming soon), Firefox Extension (coming soon)
- Integrations
- Gmail, Slack, LinkedIn, WhatsApp Web, Outlook, Zoho, Freshdesk, Zendesk
- Last verified
- July 2026
Who It's For
- •Professionals writing business emails
- •Non-native English speakers needing translation and grammar help
- •Content creators and writers
- •Customer service and support teams
- •Anyone working across multiple platforms (Gmail, Slack, LinkedIn, Outlook)
How It Works
- 1Browser extension (< 1MB) that runs natively on Chrome, Edge, Brave, Opera, Vivaldi, Safari, and Firefox
- 2Analyzes user's past emails and writing patterns to learn personal writing style
- 3Provides AI-powered suggestions via context menus, keyboard shortcuts, and integrated buttons on supported sites
- 4Automatically detects emails needing replies and offers to draft them in the user's voice
- 5Uses GPT-5, Claude, and Gemini models to generate responses based on selected AI provider
- 6Stores user profile preferences and conversation history for personalization without sharing data with third parties
How to Use ChatGPT Writer
- 1Install the free extension for your browser (Chrome, Edge, Brave, Opera, Vivaldi, Safari, or Firefox)
- 2Create a profile to enable personalization based on your writing style
- 3Select any text on a webpage and right-click, or use keyboard shortcut (Ctrl+Shift+K) to access transformation options
- 4Choose actions like Fix Grammar, Translate, Summarize, Explain, or Improve Writing
- 5Use Gmail integration to auto-draft replies, or reply manually in WhatsApp, LinkedIn, Slack, and other platforms
- 6Chat with any page for summaries and instant answers, or upload documents to chat with their contents
- 7Switch between AI models (GPT-5, Claude, Gemini) during a chat for different response styles
- 8Access the web app version on mobile or unsupported browsers
Key Features
- •Advanced Gmail integration with auto-reply drafting
- •Learns from past emails to personalize responses
- •Multiple AI models (GPT-5, Claude, Gemini) to switch between
- •Grammar fixing and writing improvement
- •Translation across all languages
- •Text summarization and explanation
- •Chat with any webpage
- •Chat with documents in any format
- •Voice input in any language
- •Custom writing styles for different situations
- •Live web access for up-to-date information
- •One-click text transformation
- •Customizable response length
- •Prompt templates
- •Lightweight extension (< 1MB)
- •Privacy-focused (data not shared or used for training)
Use Cases
- •Professional email writing and auto-drafting replies in Gmail
- •Grammar correction and writing improvement across any website
- •Translating content into multiple languages
- •Summarizing web pages and documents for quick understanding
- •Composing messages on messaging platforms (Slack, WhatsApp, LinkedIn) with personalized tone
Pros & Cons
Advantages
- •Deep integration with popular email and messaging platforms reduces tab-switching and workflow disruption
- •Learns from individual users' past emails to deliver personalized responses that match their writing voice
- •Supports multiple leading AI models (GPT-5, Claude, Gemini) allowing users to switch between them for different needs
- •Minimal performance impact with lightweight extension (< 1MB) that doesn't slow browser speed
Disadvantages
- •Requires browser extension installation for full functionality; limited standalone access compared to web-based alternatives
- •Safari and Firefox support still in development (marked 'coming soon')
- •Auto-draft reply feature may occasionally miss nuanced context requiring manual review before sending
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Frequently Asked Questions
What is ChatGPT Writer?
Jetwriter AI is a personalized AI writing assistant available as a lightweight browser extension and web application. It helps users write emails and messages, fix grammar, improve writing quality, translate content, and chat with web pages across Gmail, Slack, LinkedIn, Outlook, WhatsApp Web, and other popular platforms.
How much does ChatGPT Writer cost?
ChatGPT Writer is free to use.
Is ChatGPT Writer free?
Yes, ChatGPT Writer offers a free plan you can start with.
What are the best ChatGPT Writer alternatives?
Popular ChatGPT Writer alternatives include Sider AI, Arvin AI, ClickUp AI Writing Assistant.
What is ChatGPT Writer used for?
ChatGPT Writer is commonly used for Professional email writing and auto-drafting replies in Gmail, Grammar correction and writing improvement across any website, Translating content into multiple languages.
What platforms does ChatGPT Writer support?
ChatGPT Writer is available on Web, Chrome Extension, Edge Extension, Brave Extension, Opera Extension, Vivaldi Extension, Safari Extension (coming soon), Firefox Extension (coming soon).
Information Accuracy
Please note: While we regularly update all tool information including descriptions, features, pricing, and other details, this information may change over time as tools evolve and update their offerings. For the most current and accurate information, we recommend visiting the official website directly. Our goal is to provide you with comprehensive and up-to-date information to help you make informed decisions.