Ghostwriter Add-ins for Microsoft Office

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AI writing and productivity add-ins for Microsoft Office powered by your own API keys

Website:https://ghostwriter-ai.com/

Added on:Jul 13, 2026

Monthly Visitors:

25.3K

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AI writingMicrosoft Office add-inWord AIOutlook AIExcel AIPowerPoint AI

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Ghostwriter Add-ins for Microsoft Office

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Tool Information

What is Ghostwriter Add-ins for Microsoft Office?

Ghostwriter Add-ins for Microsoft Office are AI writing and productivity tools for Word, Outlook, Excel, and PowerPoint. They help users brainstorm, plan, create, edit, translate, and analyze content faster inside Microsoft Office apps while prioritizing privacy through personal API keys for multiple AI models.

Core Features

Word AI writing editions
Ghostwriter Word Basic, PRO, and Ultimate editions with writing styles and tones, creative settings, response length controls, quick action prompts, agents/personas (up to 100), language translation, AI prompt writer, and inline editing.
Outlook email AI
Add-in for creating and responding to emails with quick action prompts, personas, writing styles, written tones, creative settings, response length, language translation, and Azure Cognitive Services.
Excel data analysis AI
Analyze selected tables of data, generate sample data, and apply quick action prompts, personas, written tones, creative settings, response length, and language translation.
Office Bundle
Single license covering Excel Edition, Outlook Edition, PowerPoint Edition, and Word PRO Edition.
Multi-model AI support
Users add their own API keys after purchase to unlock models from OpenAI, Google Gemini, and xAI Grok.
Privacy-first approach
Designed to provide a secure and private experience that puts user privacy first.
Office Add-in Store availability
Installable from the Microsoft Office Add-in Store by searching for Ghostwriter.

Use Cases

#1
Student academic writing
Assist students at all education levels with brainstorming, planning, and creating written content in Word.
#2
High-volume email composition
Create and respond to many emails more efficiently using AI prompts, personas, styles, and tones in Outlook.
#3
Spreadsheet data analysis
Select tables of data in Excel and ask the AI to analyze them or generate sample data.
#4
Cross-application Office productivity
Use one license for AI assistance across Word, Excel, Outlook, and PowerPoint.
#5
Faster content creation and editing
Brainstorm, plan, create, translate, and inline-edit content faster than traditional methods inside Microsoft Office.

Best for:StudentsEmail-heavy professionalsMicrosoft Office usersPrivacy-conscious usersContent creators and writers

Pricing Plans

One-time purchase single-user product keys: Ghostwriter Word Basic 50.00 USD, Word PRO 100.00 USD, Word Ultimate 150.00 USD, Outlook 50.00 USD, Office Bundle 200.00 USD. After purchase users add their own API keys for OpenAI, Google Gemini, and xAI Grok. Product keys typically delivered within about an hour.

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Frequently Asked Questions

What is Ghostwriter Add-ins for Microsoft Office?

It is a set of AI writing and productivity add-ins for Microsoft Word, Outlook, Excel, and PowerPoint that help users brainstorm, plan, create, edit, translate, and analyze content faster while prioritizing privacy through personal API keys.

Do I need my own AI API keys?

Yes. After purchase, users add their own API keys to unlock models from OpenAI, Google Gemini, and xAI Grok.

Which Microsoft Office apps are supported?

Microsoft Word, Outlook, Excel, and PowerPoint on Windows, Mac, Web, and iPad for Office 2021, Microsoft 365, and Office 365.

What pricing options are available?

One-time purchase single-user product keys include Word Basic at 50.00 USD, Word PRO at 100.00 USD, Word Ultimate at 150.00 USD, Outlook at 50.00 USD, and the Office Bundle at 200.00 USD.

Is there a multi-app license?

Yes. The Office Bundle is a single license covering Excel Edition, Outlook Edition, PowerPoint Edition, and Word PRO Edition.

How does Ghostwriter handle privacy?

It is designed with a privacy-first approach that puts user privacy first by using user-supplied API keys for a secure and private experience.

How do I install Ghostwriter?

It is installable from the Microsoft Office Add-in Store by searching for Ghostwriter.

How long does it take to receive a product key?

Product keys are typically delivered about an hour after purchase; check spam folders if needed. Licenses are single-user product keys.