Cmd J

Freemium

A Google Chrome Extension to improve writing and coding.

Cmd J is a Google Chrome extension that functions as a keyboard-triggered AI assistant powered by ChatGPT. It provides a compact popup interface for drafting content, debugging code, and summarizing text directly within the browser. Designed for writers, developers, and researchers, the tool focuses on speed and simplicity by eliminating the need to switch tabs or manage an external dashboard. (verified: 2026-01-29)

Jan 29, 2026
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Pricing: Freemium
Last verified: Jan 29, 2026
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Key facts

Pricing

Freemium

Use cases

Writers drafting content such as weekly newsletters by prompting the assistant for specific bullet points or outlines (verified: 2026-01-29), Software developers debugging code snippets by pasting broken logic directly into the popup for instant explanations (verified: 2026-01-29), Researchers summarizing long blog posts or complex documents into concise sentences without leaving the active browser tab (verified: 2026-01-29)

Strengths

The extension operates through a compact popup interface that appears over the active tab to prevent workflow interruptions (verified: 2026-01-29), Users trigger the assistant instantly using keyboard shortcuts Cmd+J on macOS or Alt+J on Windows systems (verified: 2026-01-29), The tool utilizes ChatGPT technology to provide context-sensitive suggestions for writing, coding, and general search queries (verified: 2026-01-29)

Limitations

The tool is strictly a Google Chrome extension and requires the browser to be active for operation (verified: 2026-01-29), The application lacks a document manager or history archive for storing and reviewing previous AI interactions (verified: 2026-01-29)

Last verified

Jan 29, 2026

Strengths

  • The extension operates through a compact popup interface that appears over the active tab to prevent workflow interruptions (verified: 2026-01-29)
  • Users trigger the assistant instantly using keyboard shortcuts Cmd+J on macOS or Alt+J on Windows systems (verified: 2026-01-29)
  • The tool utilizes ChatGPT technology to provide context-sensitive suggestions for writing, coding, and general search queries (verified: 2026-01-29)

Limitations

  • The tool is strictly a Google Chrome extension and requires the browser to be active for operation (verified: 2026-01-29)
  • The application lacks a document manager or history archive for storing and reviewing previous AI interactions (verified: 2026-01-29)

FAQ

How does the interface work to avoid disrupting a user's current workflow?

The tool uses a compact popup interface triggered by a keyboard shortcut. This design ensures that users do not launch a full window or redirect to another page, allowing them to receive AI responses directly within their active tab (verified: 2026-01-29).

Which keyboard shortcuts are used to activate the assistant on different operating systems?

To activate the assistant, users press Cmd + J on a macOS device or Alt + J when using a Windows computer. This shortcut opens a simple box where prompts are entered immediately (verified: 2026-01-29).

What specific types of tasks does the assistant help users complete within the browser?

The assistant drafts text, explains or fixes code snippets, and answers general search queries. It adapts to various content types including blog posts, spreadsheets, and programming languages like Python or React (verified: 2026-01-29).