Jetwriter

A browser-based AI writing assistant that can rewrite, correct, translate, summarize, and explain selected text on any website. It integrates deeply with Gmail and is powered by models including GPT-5.1, Claude, and Gemini.

AI Text Tools#Writing#Email#Translation

Updated: 2026-10-26

What is Jetwriter?

Jetwriter is a personal AI writing assistant with the official slogan "Your Personal AI Writing Assistant, Use AI on Any Site". Its core solution is the "tab switching" problem: writing emails, replying to messages, correcting grammar, translating, summarizing, explaining and rewriting can all be done directly on the page you are browsing without copying text to other tools. For people who often need to switch repeatedly between writing tools and reading pages, Jetwriter aims to make AI appear right where you need it, instead of making you stop to look for it elsewhere. The official states that it is powered by the current top AI models such as GPT-5.1, Claude and Gemini, has over 700,000 users, covers Chrome extensions, web and mobile platforms, and is available for free trial.

Who is it for?

Knowledge workers who process a large volume of emails and web text every day, especially those who frequently deal with English emails; users who have a strong demand for "using AI without leaving the current page"; and those who want to access a writing assistant on mobile devices like smartphones at any time and maintain a consistent reply style. Freelancers, consultants, and others who maintain client relationships through email communication and need to maintain a consistent tone for a long time will also benefit from it. For those who need to frequently process multilingual materials and often read materials on foreign websites before writing replies, one-step word selection, translation and rewriting can save a lot of copy-pasting effort.

Key features

Available on any webpage

Select any text on the page to trigger proofreading, translation, summarization, explanation, and rewriting with one click, and use AI on any website.

Deep Gmail Integration

The official statement says it learns from your past emails and drafts to generate replies that match your personal style.

Auto-draft replies

Automatically generates drafts when you receive emails that need a response, allowing you to quickly compose emails and messages; unnecessary actions can be turned off with one click.

Full-page Conversation

You can directly ask questions about the content of the current page, which is equivalent to equipping each webpage with an assistant that understands the context.

Customizable Actions

You can add your own quick operations (Add Your Own Action), and also disable the default one-click actions to streamline them as needed.

How to use Jetwriter

It is recommended to install the extension first, run only the two functions of error correction and translation for a few days to get a feel for the accuracy, and then gradually enable advanced features such as automatic email replies.
Enabling too many one-click actions may interfere with normal input, so it is sufficient to simplify them on demand.
Spend a few minutes every week to check whether the writing style it has learned is still appropriate.
if there is a deviation, clear the historical records and retrain.
If multiple people share the device, pay attention to account isolation to avoid mixing up writing style data.

Things to know

Gmail integration means that the AI will read your historical emails and drafts. Before granting access, be sure to confirm the permission scope and data processing methods. For confidential email accounts, it is recommended to enable this feature with caution. When a browser extension reads text on a page, the page content is also sent to the model service for processing. Please pay attention when accessing confidential pages (such as backends and contracts). Webpage permissions and login status restrictions in different regions may affect the extension's ability to read text. If some individual pages do not work, you can directly use the web version instead. Both the web version and browser extensions rely on an internet connection, and model calls consume credits. The availability and speed of different model tiers may vary. The specific limits of the free trial and subsequent prices shall be subject to the official website. It emphasizes "personalization" and relies on the accumulation of historical data. The response style generated by a new account in the initial stage may not be very appropriate, and it needs to be used for a period of time to become accurate.