Offline AI Assistant Writer

Tracking since May 19, 2026.

Changelog

• May 25, 2026
  description

  Offline AI Assistant Writer is a privacy-first writing tool powered by Chrome’s built-in on-device AI (Gemini Nano). It allows you to process text locally on your machine without ever sending your data to the cloud ( that's what Google says ).
  
  FEATURES:
  - Summarize: Generate TL;DRs, key points, or headlines from any selected text.
  - Rewrite: Instantly change the tone of your writing to be more formal or casual.
  - Proofread: Clean up grammar and spelling errors locally.
  - Translate: On-device translation for supported languages (English, Spanish, Japanese, and more as Chrome expands support).
  - Drafting: Generate blog outlines, introductions, or email drafts based on your notes.
  - Standalone Mode: Use the "Full Screen" feature to pop the assistant into a dedicated tab for a distraction-free workspace.
  
  PRIVACY BY DESIGN:
  Unlike traditional AI tools, this extension does not use a backend server or external API keys. All processing happens in your browser’s local environment using Chrome’s native AI capabilities. Your text never leaves your device.
  
  Note: This extension requires a modern version of Chrome (v131+) with Built-in AI features enabled. See the onboarding page for setup instructions.
  
  Disclaimer: This is not an official Google extension.
  
  2. CATEGORIZATION
  -----------------
  Category: Productivity
  Secondary Category: Workflow & Planning
  
  3. PRIVACY (DATA USAGE)
  -----------------------
  Primary Data Collected: None.
  How is it used?: N/A.
  Single Purpose Statement: The extension processes user-selected text locally to provide AI-generated writing assistance, summarization, and translation.
  
  4. PERMISSIONS JUSTIFICATION
  ----------------------------
  - activeTab: To capture the text currently selected by the user for processing.
  - contextMenus: To provide easy right-click access to AI actions.
  - offscreen: To run background capability checks for Chrome's built-in AI.
  - sidePanel: To provide a persistent UI for AI results and settings.
  - storage: To save user preferences (language, length) and session history locally.

  Offline AI Assistant Writer is a privacy-first writing tool powered by Chrome’s built-in on-device AI (Gemini Nano). It allows you to process text locally on your machine without ever sending your data to the cloud ( that's what Google says ).
  
  FEATURES:
  - Summarize: Generate TL;DRs, key points, or headlines from any selected text.
  - Rewrite: Instantly change the tone of your writing to be more formal or casual.
  - Proofread: Clean up grammar and spelling errors locally.
  - Translate: On-device translation for supported languages (English, Spanish, Japanese, and more as Chrome expands support).
  - Drafting: Generate blog outlines, introductions, or email drafts based on your notes.
  - Standalone Mode: Use the "Full Screen" feature to pop the assistant into a dedicated tab for a distraction-free workspace.
  
  PRIVACY BY DESIGN:
  Unlike traditional AI tools, this extension does not use a backend server or external API keys. All processing happens in your browser’s local environment using Chrome’s native AI capabilities. Your text never leaves your device.
  
  Note: This extension requires a modern version of Chrome (v131+) with Built-in AI features enabled. See the onboarding page for setup instructions.
  
  Disclaimer: This is not an official Google extension.
  
  PRIVACY (DATA USAGE)
  -----------------------
  Primary Data Collected: None.
  
  PERMISSIONS JUSTIFICATION
  ----------------------------
  - activeTab: To capture the text currently selected by the user for processing.
  - contextMenus: To provide easy right-click access to AI actions.
  - offscreen: To run background capability checks for Chrome's built-in AI.
  - sidePanel: To provide a persistent UI for AI results and settings.
  - storage: To save user preferences (language, length) and session history locally.

Permissions & access

Permissions

activeTabcontextMenusoffscreensidePanelstoragetabs

Host access

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Screenshots