Artificial intelligence (AI) is revolutionizing daily workflows — from writing documents and handling spreadsheets to creating presentations or even programming. Microsoft Copilot is one of the most well-known AI-powered assistants, tightly integrated into the Microsoft 365 ecosystem (Word, Excel, Outlook, PowerPoint, etc.), offering significant productivity boosts through automation and intelligent suggestions.
However, Copilot is not available to everyone: as of 2025, it requires a business-level Microsoft 365 subscription, which often comes with a high price tag. The good news is that there are now several powerful free alternatives that offer similar functionality, often without vendor lock-in.
In this article, we present the best free AI tools you can use as alternatives to Microsoft Copilot, whether you’re writing text, generating formulas, analyzing data, or coding — all without spending a cent.
1. Why look for alternatives to Microsoft Copilot?
1.1 Price and licensing
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Microsoft Copilot is not included in the standard Microsoft 365 plan.
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In 2025, it costs $30/month per user (Microsoft 365 E3 or E5).
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Students, freelancers, and small businesses often can’t justify this cost.
1.2 Platform lock-in
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Copilot is tied to Microsoft’s environment.
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If you use Google Workspace, Linux, or open-source tools, Copilot isn’t an option.
1.3 Feature availability
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Many Copilot functions are still English-only.
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Integration across Office apps may be inconsistent.
2. The best free Copilot alternatives by category
2.1 General-purpose AI assistants
? ChatGPT (OpenAI) – Free version
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Platform: Web app, mobile, browser extension
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Model: GPT-3.5 (free), GPT-4 (Pro)
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Features: Writing, summarizing, coding help, email replies, brainstorming
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Pros:
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Fast, intuitive interface
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Supports multiple languages
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No Microsoft account required
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Cons:
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No direct integration with Word or Excel
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No spreadsheet logic support
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➡️ Ideal for writing tasks, content generation, and general productivity help.
? Gemini (Google) – Free version
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Platform: Web app, Android, integrated into Gmail/Docs
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Model: Gemini Pro
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Features: Document completion, Gmail responses, smart search
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Pros:
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Native Google Docs and Gmail integration
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Works well in long documents
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Accessible with a free Google account
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Cons:
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Limited or inconsistent access to features
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Tends to be vague
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➡️ Perfect if you’re already using Google Workspace.
2.2 AI for writing and document creation
? Notion AI – For notes and structured writing
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Platform: Web, desktop, mobile
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Features: Auto summaries, blog/e-mail writing, meeting notes
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Pros:
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Included in the free Notion plan
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Rewrite, simplify, summarize content easily
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Cons:
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Not compatible with traditional Word-style documents
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➡️ Great for productivity-focused users who like structured content.
? Zeno Chat by TextCortex – In-browser writing assistant
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Platform: Chrome, Edge, Firefox extensions
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Features: Chat, email writing, rewriting, summarizing
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Pros:
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Works directly on websites or documents
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Supports many languages
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Cons:
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Daily limits in the free version
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➡️ Quick and convenient alternative to Copilot’s writing tools.
2.3 Spreadsheets and data assistant
? AI Office Tools like SheetAI or MagicFormulas
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Platform: Google Sheets add-ons
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Features: Formula generation, explanation, predictions
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Pros:
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Basic functions are free
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Easy to install from Google Workspace Marketplace
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Cons:
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Limited support for non-English formulas
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May require English input for full functionality
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➡️ Excellent AI help for spreadsheet logic, formula troubleshooting, or automation.
2.4 Coding and development
? GitHub Copilot (free for students!)
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Platform: VS Code, GitHub Codespaces
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Pros:
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Free for students and open source contributors
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Excellent support for multiple languages (Python, JS, etc.)
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Cons:
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Requires a verified GitHub account
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Some limitations in non-English environments
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? Codeium – Fully free AI code assistant
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Platform: VS Code, JetBrains, web
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Features: Autocomplete, fix errors, generate docs
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Pros:
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100% free
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Broad language and IDE support
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Cons:
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Not integrated with Office tools
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➡️ Ideal for developers looking for a true GitHub Copilot alternative.
2.5 Other useful AI tools
? Perplexity AI – AI-powered factual search engine
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Platform: Web
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Features: Real-time fact-based answers, source references
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Pros:
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Great supplement to traditional search
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Transparent with sources and citations
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Cons:
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Not designed for creative tasks
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➡️ Best as a replacement for Bing Chat or Copilot in Edge.
3. Comparison table
Tool | Purpose | Free? | Office Integration | Platform |
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ChatGPT | General AI assistant | ✅ | ❌ | Web, mobile |
Gemini | Google ecosystem assistant | ✅ | ✅ (Docs, Gmail) | Web, Android |
Notion AI | Writing and notes | ✅ | ❌ | Web, app |
Zeno Chat | In-browser writing assistant | ✅ | ❌ | Browser |
SheetAI | Spreadsheet AI tool | ✅ | ✅ (Google Sheets) | Web |
GitHub Copilot | Coding assistant | ✅ | ❌ | VS Code |
Codeium | Free developer tool | ✅ | ❌ | IDEs, Web |
Perplexity AI | AI-powered search | ✅ | ❌ | Web |
4. Which tool should you choose?
Your goal | Recommended tool |
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Writing documents | ChatGPT, Gemini |
Gmail or email replies | Gemini, Zeno Chat |
Spreadsheet assistance | SheetAI, MagicFormulas |
Meeting notes or summaries | Notion AI |
Coding help | Codeium, GitHub Copilot |
Creative content generation | ChatGPT, Notion AI |
Factual search with citations | Perplexity AI |
Final thoughts
Microsoft Copilot is undoubtedly a powerful AI assistant — but it’s not the only game in town. Whether you want to write better, automate emails, generate code, or get spreadsheet help, you’ll find a wide range of free tools that rival or complement Copilot’s functionality.
The future of work is AI-powered — and now it’s accessible to everyone, not just enterprise users.