Skipit summarizes YouTube videos and answers questions about them, including videos up to 12 hours long.
Locus
Locus combines smart search and AI-assisted information synthesis for students and analysts.

About Locus
Locus is a browser tool for students and analysts that adds natural-language search and AI assistance to reading web pages and PDFs. It works as an alternative to standard Ctrl + F or Cmd + F, finding relevant sections without requiring exact keywords.
With Locus, you can search long articles, papers, and textbooks by describing what you need, summarize full pages or selected portions, and generate note cards for study. It can also suggest additional research topics and related documents, and lets you save answers with Favorites to refer back across documents.
It suits students working with online textbooks and dense papers, and analysts who review news and reports. The service runs in the browser and includes a free tier with daily limits and a paid Professional tier.
Key features
- Search web pages using natural language queries
- Search PDF documents with AI
- Summarize pages or selected sections
- Create note cards for study review
- Save answers with Favorites across documents
- Suggest related research topics and documents
- Works on both web pages and PDFs
- Finds sections without exact keywords
- Free tier available with core search functions
- Supports several AI models
- Free plan limited to 3 documents daily
- Unlimited documents and actions require paid plan
Locus at a glance
- Website
- locusextension.com
- Category
- AI & Machine Learning › AI Search & Research
- Type
- Website
- Pricing
- Freemium
- Platforms
- Web
- Open source
- Not stated
- Good for
- Students
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Locus FAQ
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