Locus
AI-powered browser extension that replaces Ctrl+F with natural language search and AI research assistance
| What is it | AI-powered browser extension that replaces Ctrl+F with natural language search and AI research assistance |
|---|---|
| Pricing | Freemium — from $9/mo |
| Free tier | Yes |
| Platform | Chrome Extension |
| Best for | researching academic papers, analyzing long documents |
| Domain registered | 2023 |
Data updated Aug. 1, 2026
What does Locus do?
Locus is a browser extension that revolutionizes how you search and research online content. It replaces the traditional Ctrl+F function with AI-powered natural language search that understands what you're looking for rather than requiring exact keyword matches. Whether you're reading lengthy articles, research papers, or PDF documents, Locus instantly finds the relevant sections based on your query's meaning rather than just matching text.
The tool works by indexing web pages and PDFs, then using large language models to comprehend your search intent. Beyond just finding information, Locus provides AI assistance features including summarization of entire pages or specific sections, brainstorming help for research topics, and study aids like automatically generated note cards. It integrates with multiple AI models including OpenAI GPT-4o, Claude 3 Haiku, and Google Gemini, offering different processing options depending on your subscription tier.
Locus is particularly valuable for students tackling dense textbooks, researchers analyzing academic papers, and professionals who need to quickly digest large amounts of information. Users can save their favorite findings across different documents and maintain a search history for reference. The free version handles 3 documents daily with basic AI features, while the professional tier removes limits and provides access to more advanced models and faster processing.
Key features
What makes it stand outWho is Locus for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardFree
- 3 daily documents
- Natural Language Search
- Web Pages
- PDF Documents
- Daily Refresh of Index
- Search History
- Save Favorites
- AI Based Summarization
Professional
Everything in Free, plus:
- All Free Features +
- No Document Limits
- Newest AI models included
- Choose your AI role
- Unlimited tokens with OpenAI integration*
- Faster Processing Engine
Trust & presence
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