AI web copilot Chrome extension by Lepton AI — summarizes pages, PDFs, YouTube, Google Docs in 5s. Free, no account needed. 50K+ users, 4.6 stars.
Expert Video Review by SEOGANT · March 2026
Elmo is an AI-powered Chrome extension and web research assistant that allows users to summarize, question, and extract insights from any web page they are currently viewing, without leaving their browser.
Users can highlight any section of a page and ask Elmo to explain, simplify, translate, or expand on it turning dense technical documentation, academic papers, news articles, and long-form content into quickly digestible information.
This in-context AI assistance eliminates the friction of switching between browser tabs and AI chat interfaces, keeping research and reading workflows continuous and efficient.
Beyond individual page interaction, Elmo can synthesize information across multiple pages allowing users to open several sources and then ask questions that draw on content from all of them simultaneously.
This cross-page synthesis capability is particularly useful for competitive research, due diligence, and fact-checking tasks where the relevant information is distributed across multiple sources and manual cross-referencing is time-consuming.
The extension integrates with popular AI models and maintains conversation context across a browsing session, so follow-up questions build on what has already been discussed rather than starting fresh each time.
Elmo is designed for knowledge workers whose jobs require staying current with large volumes of information analysts, researchers, journalists, consultants, and executives who read extensively but need to process and act on information faster than manual reading alone allows.
The extension's ability to generate summaries, key takeaways, and action items from long documents directly in the browser makes it a productivity multiplier for any workflow that involves substantial web reading.
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