Docs AI Assistant

AI Writing Assistant for Google Docs

Generate, rewrite, and summarize text directly inside Google Docs using your own Gemini or OpenAI API key.

No subscription. One-time purchase, lifetime use. Multi-language support for English, Chinese, Japanese, Spanish, and more.

Install from Google Workspace Marketplace 2-day free trial · Then one-time payment · No monthly fees

In-product preview

✨ Key Features

Generate content

Turn short prompts into full paragraphs, stories, blog posts, emails, or outlines. Insert directly at the cursor position in Google Docs.

Rewrite & improve

Select any text and use Rewrite, Expand, Summarize, or Format to instantly polish your writing.

Multi-language support

Works in many languages including English, Chinese, Japanese, Korean, Spanish, French and more. The output language follows your input.

Bring Your Own API Key (BYOK)

You use your own API keys. Your keys are stored via Google Apps Script properties and are never sent to the developer.

  • Use Google Gemini for a generous free tier
  • Use OpenAI for GPT-style outputs
  • Switch providers anytime if you don’t like the result

Privacy by design

Your document content stays in Google Docs. The add-on does not store your text on any external server. AI requests are sent directly to Gemini or OpenAI using your API key.

🚀 How it works

  1. 1. Install the add-on from Google Workspace Marketplace.
  2. 2. Open any Google Doc and go to Extensions → Docs AI Assistant.
  3. 3. In the sidebar, enter your Gemini or OpenAI API key.
  4. 4. Type a prompt or select text and choose Generate, Rewrite, Summarize, Expand, or Format.
  5. 5. Review the output and insert it directly into your document.

💳 Pricing

$9.95 – One-time purchase

  • • 2-day free trial
  • • Lifetime access to the add-on
  • • No monthly subscription
  • • You control Gemini / OpenAI costs via your own API keys

Billing is handled via Google Workspace Marketplace or a separate checkout page.

❓ FAQ

Do you store my documents or API keys?

No. Your text stays in Google Docs. API keys are stored via Google Apps Script properties and are never sent to the developer.

Can I switch between Gemini and OpenAI?

Yes. You can choose Gemini for free usage and switch to OpenAI when you want a different style of output.

Which languages are supported?

Any language supported by the AI model you choose, including English, Chinese, Japanese, Korean, Spanish, French, and more.