Annotator - Web & PDF Annotation

About

Your Digital Highlighter for the Web & PDFs
Turn reading into a conversation. Whether you’re a student, researcher, or just someone who loves to read online, Hypothesis lets you take notes directly on any webpage or PDF—just like you would in the margins of a physical book.

Why You’ll Love It:
Highlight & Save: Never lose a great idea. Highlight key sentences and save your thoughts directly on the page.

Collaborate Anywhere: Create private groups to share notes with friends, colleagues, or classmates. It’s like a book club that lives inside your browser.

Works Everywhere: Use it on news articles, blog posts, scientific journals, and PDFs. Your notes stay with the document, so you can find them again instantly.

Organize with Ease: Use "Tags" to categorize your research. Searching for that one specific quote across ten different websites has never been easier.

Simple & Clean: No complex menus or technical jargon. If you can highlight text with your mouse, you already know how to use Hypothesis.

🚀 Coming Soon: The Future of Reading with AI
We are hard at work building powerful AI-assisted features to help you learn faster and smarter. Soon, you’ll be able to:

Summarize in a Click: Get instant summaries of long articles to see if they’re relevant to your research.

AI Reading Assistant: Ask questions about complex paragraphs and get simplified explanations right in the sidebar.

Smart Suggestions: Discover connections between your different notes and find related topics automatically.

Getting Started is Easy:
Add the extension to Chrome.

Open any webpage or PDF.

Highlight text to start your first note!